Security alerts - a reference guide

This article lists the security alerts you might get from Azure Defender. The alerts shown in your environment depend on the resources and services you're protecting, as well as your customized configuration.

To learn how to respond to these alerts, see Manage and respond to security alerts in Azure Security Center.

To learn how to export alerts (and recommendations) see Continuously export Security Center data.

At the bottom of this page, there's a table describing the Azure Security Center kill chain that is used to categorize the intents of these alerts.

Alerts for Windows machines

Further details and notes

Alert Description Intent
(Learn more)
Severity
A logon from a malicious IP has been detected A successful remote authentication for the account [account] and process [process] occurred, however the logon IP address (x.x.x.x) has previously been reported as malicious or highly unusual. A successful attack has probably occurred. - High
A logon from a malicious IP has been detected. [seen multiple times] A successful remote authentication for the account [account] and process [process] occurred, however the logon IP address (x.x.x.x) has previously been reported as malicious or highly unusual. A successful attack has probably occurred. Files with the .scr extensions are screen saver files and are normally reside and execute from the Windows system directory. - High
Addition of Guest account to Local Administrators group Analysis of host data has detected the addition of the built-in Guest account to the Local Administrators group on %{Compromised Host}, which is strongly associated with attacker activity. - Medium
An event log was cleared Machine logs indicate a suspicious event log clearing operation by user: '%{user name}' in Machine: '%{CompromisedEntity}'. The %{log channel} log was cleared. - Informational
Antimalware Action Taken Microsoft Antimalware for Azure has taken an action to protect this machine from malware or other potentially unwanted software. - Medium
Antimalware Action Failed Microsoft Antimalware has encountered an error when taking an action on malware or other potentially unwanted software. - Medium
Detected Petya ransomware indicators Analysis of host data on %{Compromised Host} detected indicators associated with Petya ransomware. See https://blogs.technet.microsoft.com/mmpc/2017/06/27/new-ransomware-old-techniques-petya-adds-worm-capabilities/ for more information. Review the command line associated in this alert and escalate this alert to your security team. - High
Detected actions indicative of disabling and deleting IIS log files Analysis of host data detected actions that show IIS log files being disabled and/or deleted. - Medium
Detected anomalous mix of upper and lower case characters in command-line Analysis of host data on %{Compromised Host} detected a command line with anomalous mix of upper and lower case characters. This kind of pattern, while possibly benign, is also typical of attackers trying to hide from case-sensitive or hash-based rule matching when performing administrative tasks on a compromised host. - Medium
Detected change to a registry key that can be abused to bypass UAC Analysis of host data on %{Compromised Host} detected that a registry key that can be abused to bypass UAC (User Account Control) was changed. This kind of configuration, while possibly benign, is also typical of attacker activity when trying to move from unprivileged (standard user) to privileged (for example administrator) access on a compromised host. - Medium
Detected decoding of an executable using built-in certutil.exe tool Analysis of host data on %{Compromised Host} detected that certutil.exe, a built-in administrator utility, was being used to decode an executable instead of its mainstream purpose that relates to manipulating certificates and certificate data. Attackers are known to abuse functionality of legitimate administrator tools to perform malicious actions, for example using a tool such as certutil.exe to decode a malicious executable that will then be subsequently executed. - High
Detected enabling of the WDigest UseLogonCredential registry key Analysis of host data detected a change in the registry key HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest\ "UseLogonCredential". Specifically this key has been updated to allow logon credentials to be stored in clear text in LSA memory. Once enabled an attacker can dump clear text passwords from LSA memory with credential harvesting tools such as Mimikatz. - Medium
Detected encoded executable in command line data Analysis of host data on %{Compromised Host} detected a base-64 encoded executable. This has previously been associated with attackers attempting to construct executables on-the-fly through a sequence of commands, and attempting to evade intrusion detection systems by ensuring that no individual command would trigger an alert. This could be legitimate activity, or an indication of a compromised host. - High
Detected obfuscated command line Attackers use increasingly complex obfuscation techniques to evade detections that run against the underlying data. Analysis of host data on %{Compromised Host} detected suspicious indicators of obfuscation on the commandline. - Informational
Detected possible execution of keygen executable Analysis of host data on %{Compromised Host} detected execution of a process whose name is indicative of a keygen tool; such tools are typically used to defeat software licensing mechanisms but their download is often bundled with other malicious software. Activity group GOLD has been known to make use of such keygens to covertly gain back door access to hosts that they compromise. - Medium
Detected possible execution of malware dropper Analysis of host data on %{Compromised Host} detected a filename that has previously been associated with one of activity group GOLD's methods of installing malware on a victim host. - High
Detected possible local reconnaissance activity Analysis of host data on %{Compromised Host} detected a combination of systeminfo commands that has previously been associated with one of activity group GOLD's methods of performing reconnaissance activity. While 'systeminfo.exe' is a legitimate Windows tool, executing it twice in succession in the way that has occurred here is rare. -
Detected potentially suspicious use of Telegram tool Analysis of host data shows installation of Telegram, a free cloud-based instant messaging service that exists both for mobile and desktop system. Attackers are known to abuse this service to transfer malicious binaries to any other computer, phone, or tablet. - Medium
Detected suppression of legal notice displayed to users at logon Analysis of host data on %{Compromised Host} detected changes to the registry key that controls whether a legal notice is displayed to users when they log on. Microsoft security analysis has determined that this is a common activity undertaken by attackers after having compromised a host. - Low
Detected suspicious combination of HTA and PowerShell mshta.exe (Microsoft HTML Application Host) which is a signed Microsoft binary is being used by the attackers to launch malicious PowerShell commands. Attackers often resort to having an HTA file with inline VBScript. When a victim browses to the HTA file and chooses to run it, the PowerShell commands and scripts that it contains are executed. Analysis of host data on %{Compromised Host} detected mshta.exe launching PowerShell commands. - Medium
Detected suspicious commandline arguments Analysis of host data on %{Compromised Host} detected suspicious commandline arguments that have been used in conjunction with a reverse shell used by activity group HYDROGEN. - High
Detected suspicious commandline used to start all executables in a directory Analysis of host data has detected a suspicious process running on %{Compromised Host}. The commandline indicates an attempt to start all executables (*.exe) that may reside in a directory. This could be an indication of a compromised host. - Medium
Detected suspicious credentials in commandline Analysis of host data on %{Compromised Host} detected a suspicious password being used to execute a file by activity group BORON. This activity group has been known to use this password to execute Pirpi malware on a victim host. - High
Detected suspicious document credentials Analysis of host data on %{Compromised Host} detected a suspicious, common precomputed password hash used by malware being used to execute a file. Activity group HYDROGEN has been known to use this password to execute malware on a victim host. - High
Detected suspicious execution of VBScript.Encode command Analysis of host data on %{Compromised Host} detected the execution of VBScript.Encode command. This encodes the scripts into unreadable text, making it more difficult for users to examine the code. Microsoft threat research shows that attackers often use encoded VBscript files as part of their attack to evade detection systems. This could be legitimate activity, or an indication of a compromised host. - Medium
Detected suspicious execution via rundll32.exe Analysis of host data on %{Compromised Host} detected rundll32.exe being used to execute a process with an uncommon name, consistent with the process naming scheme previously seen used by activity group GOLD when installing their first stage implant on a compromised host. - High
Detected suspicious file cleanup commands Analysis of host data on %{Compromised Host} detected a combination of systeminfo commands that has previously been associated with one of activity group GOLD's methods of performing post-compromise self-cleanup activity. While 'systeminfo.exe' is a legitimate Windows tool, executing it twice in succession, followed by a delete command in the way that has occurred here is rare. - High
Detected suspicious file creation Analysis of host data on %{Compromised Host} detected creation or execution of a process which has previously indicated post-compromise action taken on a victim host by activity group BARIUM. This activity group has been known to use this technique to download additional malware to a compromised host after an attachment in a phishing doc has been opened. - High
Detected suspicious named pipe communications Analysis of host data on %{Compromised Host} detected data being written to a local named pipe from a Windows console command. Named pipes are known to be a channel used by attackers to task and communicate with a malicious implant. This could be legitimate activity, or an indication of a compromised host. - High
Detected suspicious network activity Analysis of network traffic from %{Compromised Host} detected suspicious network activity. Such traffic, while possibly benign, is typically used by an attacker to communicate with malicious servers for downloading of tools, command-and-control and exfiltration of data. Typical related attacker activity includes copying remote administration tools to a compromised host and exfiltrating user data from it. - Low
Detected suspicious new firewall rule Analysis of host data detected a new firewall rule has been added via netsh.exe to allow traffic from an executable in a suspicious location. - Medium
Detected suspicious use of Cacls to lower the security state of the system Attackers use myriad ways like brute force, spear phishing etc. to achieve initial compromise and get a foothold on the network. Once initial compromise is achieved they often take steps to lower the security settings of a system. Cacls—short for change access control list is Microsoft Windows native command-line utility often used for modifying the security permission on folders and files. A lot of time the binary is used by the attackers to lower the security settings of a system. This is done by giving Everyone full access to some of the system binaries like ftp.exe, net.exe, wscript.exe etc. Analysis of host data on %{Compromised Host} detected suspicious use of Cacls to lower the security of a system. - Medium
Detected suspicious use of FTP -s Switch Analysis of process creation data from the %{Compromised Host} detected the use of the FTP "-s:filename" switch. This switch is used to specify an FTP script file for the client to run. Malware or malicious processes are known to use this FTP switch (-s:filename) to point to a script file which is configured to connect to a remote FTP server and download additional malicious binaries. - Medium
Detected suspicious use of Pcalua.exe to launch executable code Analysis of host data on %{Compromised Host} detected the use of pcalua.exe to launch executable code. Pcalua.exe is component of the Microsoft Windows "Program Compatibility Assistant" which detects compatibility issues during the installation or execution of a program. Attackers are known to abuse functionality of legitimate Windows system tools to perform malicious actions, for example using pcalua.exe with the -a switch to launch malicious executables either locally or from remote shares. - Medium
Detected the disabling of critical services The analysis of host data on %{Compromised Host} detected execution of "net.exe stop" command being used to stop critical services like SharedAccess or Windows Security Center. The stopping of either of these services can be indication of a malicious behavior. - Medium
Digital currency mining related behavior detected Analysis of host data on %{Compromised Host} detected the execution of a process or command normally associated with digital currency mining. - High
Dynamic PS script construction Analysis of host data on %{Compromised Host} detected a PowerShell script being constructed dynamically. Attackers sometimes use this approach of progressively building up a script in order to evade IDS systems. This could be legitimate activity, or an indication that one of your machines has been compromised. - Medium
Executable found running from a suspicious location Analysis of host data detected an executable file on %{Compromised Host} that is running from a location in common with known suspicious files. This executable could either be legitimate activity, or an indication of a compromised host. - High
Fileless attack technique detected The memory of the process specified below contains evidence of a fileless attack technique. Fileless attacks are used by attackers to execute code while evading detection by security software. Specific behaviors include:
1) Shellcode, which is a small piece of code typically used as the payload in the exploitation of a software vulnerability.
2) Executable image injected into the process, such as in a code injection attack.
3) Active network connections. See NetworkConnections below for details.
4) Function calls to security sensitive operating system interfaces. See Capabilities below for referenced OS capabilities.
5) Process hollowing, which is a technique used by malware in which a legitimate process is loaded on the system to act as a container for hostile code.
6) Contains a thread that was started in a dynamically allocated code segment. This is a common pattern for process injection attacks.
DefenseEvasion / Execution High
Fileless attack behavior detected The memory of the process specified contains behaviors commonly used by fileless attacks. Specific behaviors include:
1) Shellcode, which is a small piece of code typically used as the payload in the exploitation of a software vulnerability.
2) Active network connections. See NetworkConnections below for details.
3) Function calls to security sensitive operating system interfaces. See Capabilities below for referenced OS capabilities.
4) Contains a thread that was started in a dynamically allocated code segment. This is a common pattern for process injection attacks.
DefenseEvasion Low
Fileless attack toolkit detected The memory of the process specified contains a fileless attack toolkit: [toolkit name]. Fileless attack toolkits use techniques that minimize or eliminate traces of malware on disk, and greatly reduce the chances of detection by disk-based malware scanning solutions. Specific behaviors include:
1) Well-known toolkits and crypto mining software.
2) Shellcode, which is a small piece of code typically used as the payload in the exploitation of a software vulnerability.
3) Injected malicious executable in process memory.
DefenseEvasion Medium
High risk software detected Analysis of host data from %{Compromised Host} detected the usage of software that has been associated with the installation of malware in the past. A common technique utilized in the distribution of malicious software is to package it within otherwise benign tools such as the one seen in this alert. Upon using these tools, the malware can be silently installed in the background. - Medium
Local Administrators group members were enumerated Machine logs indicate a successful enumeration on group %{Enumerated Group Domain Name}%{Enumerated Group Name}. Specifically, %{Enumerating User Domain Name}%{Enumerating User Name} remotely enumerated the members of the %{Enumerated Group Domain Name}%{Enumerated Group Name} group. This activity could either be legitimate activity, or an indication that a machine in your organization has been compromised and used to reconnaissance %{vmname}. - Informational
Malicious SQL activity Machine logs indicate that '%{process name}' was executed by account: %{user name}. This activity is considered malicious. - High
Malicious firewall rule created by ZINC server implant [seen multiple times] A firewall rule was created using techniques that match a known actor, ZINC. The rule was possibly used to open a port on %{Compromised Host} to allow for Command & Control communications. This behavior was seen [x] times today on the following machines: [Machine names] - High
Multiple Domain Accounts Queried Analysis of host data has determined that an unusual number of distinct domain accounts are being queried within a short time period from %{Compromised Host}. This kind of activity could be legitimate, but can also be an indication of compromise. - Medium
Possible credential dumping detected [seen multiple times] Analysis of host data has detected use of native windows tool (e.g. sqldumper.exe) being used in a way that allows to extract credentials from memory. Attackers often use these techniques to extract credentials that they then further use for lateral movement and privilege escalation. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Potential attempt to bypass AppLocker detected Analysis of host data on %{Compromised Host} detected a potential attempt to bypass AppLocker restrictions. AppLocker can be configured to implement a policy that limits what executables are allowed to run on a Windows system. The command-line pattern similar to that identified in this alert has been previously associated with attacker attempts to circumvent AppLocker policy by using trusted executables (allowed by AppLocker policy) to execute untrusted code. This could be legitimate activity, or an indication of a compromised host. - High
PsExec execution detected Analysis of host data indicates that the process %{Process Name} was executed by PsExec utility. PsExec can be used for running processes remotely. This technique might be used for malicious purposes. - Informational
Ransomware indicators detected [seen multiple times] Analysis of host data indicates suspicious activity traditionally associated with lock-screen and encryption ransomware. Lock screen ransomware displays a full-screen message preventing interactive use of the host and access to its files. Encryption ransomware prevents access by encrypting data files. In both cases a ransom message is typically displayed, requesting payment in order to restore file access. This behavior was seen [x] times today on the following machines: [Machine names] - High
Ransomware indicators detected Analysis of host data indicates suspicious activity traditionally associated with lock-screen and encryption ransomware. Lock screen ransomware displays a full-screen message preventing interactive use of the host and access to its files. Encryption ransomware prevents access by encrypting data files. In both cases a ransom message is typically displayed, requesting payment in order to restore file access. - High
Rare SVCHOST service group executed The system process SVCHOST was observed running a rare service group. Malware often uses SVCHOST to masquerade its malicious activity. - Informational
Sticky keys attack detected Analysis of host data indicates that an attacker may be subverting an accessibility binary (for example sticky keys, onscreen keyboard, narrator) in order to provide backdoor access to the host %{Compromised Host}. - Medium
Successful brute force attack Several sign in attempts were detected from the same source. Some successfully authenticated to the host.
This resembles a burst attack, in which an attacker performs numerous authentication attempts to find valid account credentials.
- Medium/High
Suspect integrity level indicative of RDP hijacking Analysis of host data has detected the tscon.exe running with SYSTEM privileges - this can be indicative of an attacker abusing this binary in order to switch context to any other logged on user on this host; it is a known attacker technique to compromise additional user accounts and move laterally across a network. - Medium
Suspect service installation Analysis of host data has detected the installation of tscon.exe as a service: this binary being started as a service potentially allows an attacker to trivially switch to any other logged on user on this host by hijacking RDP connections; it is a known attacker technique to compromise additional user accounts and move laterally across a network. - Medium
Suspected Kerberos Golden Ticket attack parameters observed Analysis of host data detected commandline parameters consistent with a Kerberos Golden Ticket attack. - Medium
Suspicious Account Creation Detected Analysis of host data on %{Compromised Host} detected creation or use of a local account %{Suspicious account name} : this account name closely resembles a standard Windows account or group name '%{Similar To Account Name}'. This is potentially a rogue account created by an attacker, so named in order to avoid being noticed by a human administrator. - Medium
Suspicious Activity Detected Analysis of host data has detected a sequence of one or more processes running on %{machine name} that have historically been associated with malicious activity. While individual commands may appear benign the alert is scored based on an aggregation of these commands. This could either be legitimate activity, or an indication of a compromised host. - Medium
Suspicious PowerShell Activity Detected Analysis of host data detected a PowerShell script running on %{Compromised Host} that has features in common with known suspicious scripts. This script could either be legitimate activity, or an indication of a compromised host. - High
Suspicious PowerShell cmdlets executed Analysis of host data indicates execution of known malicious PowerShell PowerSploit cmdlets. - Medium
Suspicious SQL activity Machine logs indicate that '%{process name}' was executed by account: %{user name}. This activity is uncommon with this account. - Medium
Suspicious SVCHOST process executed The system process SVCHOST was observed running in an abnormal context. Malware often uses SVCHOST to masquerade its malicious activity. - High
Suspicious Screensaver process executed The process '%{process name}' was observed executing from an uncommon location. Files with the .scr extensions are screen saver files and are normally reside and execute from the Windows system directory. - Medium
Suspicious Volume Shadow Copy Activity Analysis of host data has detected a shadow copy deletion activity on the resource. Volume Shadow Copy (VSC) is an important artifact that stores data snapshots. Some malware and specifically Ransomware, targets VSC to sabotage backup strategies. - High
Suspicious WindowPosition registry value detected Analysis of host data on %{Compromised Host} detected an attempted WindowPosition registry configuration change that could be indicative of hiding application windows in non-visible sections of the desktop. This could be legitimate activity, or an indication of a compromised machine: this type of activity has been previously associated with known adware (or unwanted software) such as Win32/OneSystemCare and Win32/SystemHealer and malware such as Win32/Creprote. When the WindowPosition value is set to 201329664, (Hex: 0x0c00 0c00, corresponding to X-axis=0c00 and the Y-axis=0c00) this places the console app's window in a non-visible section of the user's screen in an area that is hidden from view below the visible start menu/taskbar. Known suspect Hex value includes, but not limited to c000c000 - Low
Suspicious authentication activity Although none of them succeeded, some of them used accounts were recognized by the host. This resembles a dictionary attack, in which an attacker performs numerous authentication attempts using a dictionary of predefined account names and passwords in order to find valid credentials to access the host. This indicates that some of your host account names might exist in a well-known account name dictionary. - Medium
Suspicious code segment detected Indicates that a code segment has been allocated by using non-standard methods, such as reflective injection and process hollowing. The alert provides additional characteristics of the code segment that have been processed to provide context for the capabilities and behaviors of the reported code segment. - Medium
Suspicious command execution Machine logs indicate a suspicious command-line execution by user %{user name}. -
Suspicious double extension file executed Analysis of host data indicates an execution of a process with a suspicious double extension. This extension may trick users into thinking files are safe to be opened and might indicate the presence of malware on the system. - High
Suspicious download using Certutil detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the use of certutil.exe, a built-in administrator utility, for the download of a binary instead of its mainstream purpose that relates to manipulating certificates and certificate data. Attackers are known to abuse functionality of legitimate administrator tools to perform malicious actions, for example using certutil.exe to download and decode a malicious executable that will then be subsequently executed. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Suspicious download using Certutil detected Analysis of host data on %{Compromised Host} detected the use of certutil.exe, a built-in administrator utility, for the download of a binary instead of its mainstream purpose that relates to manipulating certificates and certificate data. Attackers are known to abuse functionality of legitimate administrator tools to perform malicious actions, for example using certutil.exe to download and decode a malicious executable that will then be subsequently executed. - Medium
Suspicious process executed [seen multiple times] Machine logs indicate that the suspicious process: '%{Suspicious Process}' was running on the machine, often associated with attacker attempts to access credentials. This behavior was seen [x] times today on the following machines: [Machine names] - High
Suspicious process executed Machine logs indicate that the suspicious process: '%{Suspicious Process}' was running on the machine, often associated with attacker attempts to access credentials. - High
Suspicious process name detected [seen multiple times] Analysis of host data on %{Compromised Host} detected a process whose name is suspicious, for example corresponding to a known attacker tool or named in a way that is suggestive of attacker tools that try to hide in plain sight. This process could be legitimate activity, or an indication that one of your machines has been compromised. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Suspicious process name detected Analysis of host data on %{Compromised Host} detected a process whose name is suspicious, for example corresponding to a known attacker tool or named in a way that is suggestive of attacker tools that try to hide in plain sight. This process could be legitimate activity, or an indication that one of your machines has been compromised. - Medium
Suspicious process termination burst Analysis of host data indicates a suspicious process termination burst in %{Machine Name}. Specifically, %{NumberOfCommands} processes were killed between %{Begin} and %{Ending}. - Low
Suspicious system process executed The system process %{process name} was observed running in an abnormal context. Malware often uses this process name to masquerade its malicious activity. - High
Suspiciously named process detected Analysis of host data on %{Compromised Host} detected a process whose name is very similar to but different from a very commonly run process (%{Similar To Process Name}). While this process could be benign attackers are known to sometimes hide in plain sight by naming their malicious tools to resemble legitimate process names. - Medium
Unusual process execution detected Analysis of host data on %{Compromised Host} detected the execution of a process by %{User Name} that was unusual. Accounts such as %{User Name} tend to perform a limited set of operations, this execution was determined to be out of character and may be suspicious. - High
VBScript HTTP object allocation detected Creation of a VBScript file using Command Prompt has been detected. The following script contains HTTP object allocation command. This action can be used to download malicious files. - High
Windows registry persistence method detected Analysis of host data has detected an attempt to persist an executable in the Windows registry. Malware often uses such a technique to survive a boot. - Low

Alerts for Linux machines

Further details and notes

Alert (Alert Type) Description Intent
(Learn more)
Severity
A kernel module was loaded A kernel module was loaded in the host %{compromised host} using the command %{Command used} by the user %{user}. - Low
A kernel module was removed A kernel module was removed in the host %{compromised host} using the command %{Command used} by the user %{user}. - Medium
A new user was added to the sudoers group Host data analysis detected that a user was added to the sudoers group, which enables its members to run commands with high privileges. PrivilegeEscalation Low
Abnormal Termination
(VM_AbnormalDaemonTermination )
Analysis of host data on %{Compromised Host} detected a daemon process terminating abnormally. Exploitation Low
Access of htaccess file detected Analysis of host data on %{Compromised Host} detected possible manipulation of a htaccess file. Htaccess is a powerful configuration file that allows you to make multiple changes to a web server running the Apache Web software including basic redirect functionality, or for more advanced functions such as basic password protection. Attackers will often modify htaccess files on machines they have compromised to gain persistence. - Medium
An history file has been cleared Analysis of host data indicates that the command history log file has been cleared. Attackers may do this to cover their traces. The operation was performed by user: '%{user name}'. - Medium
Attempt to stop apt-daily-upgrade.timer service detected [seen multiple times] Analysis of host data on %{Compromised Host} detected an attempt to stop apt-daily-upgrade.timer service. In some recent attacks, attackers have been observed stopping this service, to download malicious files and granting execution privileges for their attack. This behavior was seen [x] times today on the following machines: [Machine names] - Low
Attempt to stop apt-daily-upgrade.timer service detected Analysis of host data on %{Compromised Host} detected an attempt to stop apt-daily-upgrade.timer service. In some recent attacks, attackers have been observed stopping this service, to download malicious files and granting execution privileges for their attack. - Low
Behavior similar to common Linux bots detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the execution of a process normally associated with common Linux botnets. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Behavior similar to common Linux bots detected Analysis of host data on %{Compromised Host} detected the execution of a process normally associated with common Linux botnets. - Medium
Behavior similar to Fairware ransomware detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the execution of rm -rf commands applied to suspicious locations. As rm -rf will recursively delete files, it is normally used on discrete folders. In this case, it is being used in a location that could remove a lot of data. Fairware ransomware is known to execute rm -rf commands in this folder. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Behavior similar to Fairware ransomware detected Analysis of host data on %{Compromised Host} detected the execution of rm -rf commands applied to suspicious locations. As rm -rf will recursively delete files, it is normally used on discrete folders. In this case, it is being used in a location that could remove a lot of data. Fairware ransomware is known to execute rm -rf commands in this folder. - Medium
Behavior similar to ransomware detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the execution of files that have resemblance of known ransomware that can prevent users from accessing their system or personal files, and demands ransom payment in order to regain access. This behavior was seen [x] times today on the following machines: [Machine names] - High
Burst of log deletions may indicate actions of an attacker [seen multiple times) Analysis of host data on [machine] detected a large number of system log files being removed. Attackers often perform this for defense evasion.This behavior was seen over 100 times today on the following machines: [machine name] DefenseEvasion Low
Burst of log deletions may indicate actions of an attacker Analysis of host data on [machine] detected a large number of system log files being removed. Attackers often perform this for defense evasion. DefenseEvasion Low
Container with a miner image detected Machine logs indicate execution of a Docker container that runs an image associated with a digital currency mining. This behavior can possibly indicate that your resources are abused by an attacker. - High
Detected anomalous mix of upper and lower case characters in command line Analysis of host data on %{Compromised Host} detected a command line with anomalous mix of upper and lower case characters. This kind of pattern, while possibly benign, is also typical of attackers trying to hide from case-sensitive or hash-based rule matching when performing administrative tasks on a compromised host. - Medium
Detected file download from a known malicious source [seen multiple times] Analysis of host data has detected the download of a file from a known malware source on %{Compromised Host}. This behavior was seen over [x] times today on the following machines: [Machine names] - Medium
Detected file download from a known malicious source Analysis of host data has detected the download of a file from a known malware source on %{Compromised Host}. - Medium
Detected persistence attempt [seen multiple times] Analysis of host data on %{Compromised Host} has detected installation of a startup script for single-user mode. It is extremely rare that any legitimate process needs to execute in that mode, so this may indicate that an attacker has added a malicious process to every run-level to guarantee persistence. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Detected persistence attempt Host data analysis has detected that a startup script for single-user mode has been installed.
Because it's rare that any legitimate process would be required to run in that mode, this might indicate that an attacker has added a malicious process to every run-level to guarantee persistence.
Persistence Medium
Detected suspicious file download [seen multiple times] Analysis of host data has detected suspicious download of remote file on %{Compromised Host}. This behavior was seen 10 times today on the following machines: [Machine name] - Low
Detected suspicious file download Analysis of host data has detected suspicious download of remote file on %{Compromised Host}. - Low
Detected suspicious network activity Analysis of network traffic from %{Compromised Host} detected suspicious network activity. Such traffic, while possibly benign, is typically used by an attacker to communicate with malicious servers for downloading of tools, command-and-control and exfiltration of data. Typical related attacker activity includes copying remote administration tools to a compromised host and exfiltrating user data from it. - Low
Detected suspicious use of the nohup command [seen multiple times] Analysis of host data has detected suspicious use of the nohup command on %{Compromised Host}. Attackers have been seen running the command nohup from a temporary directory to allow their executables to run in the background. It is not normal to see this command run on files located in a temporary directory. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Detected suspicious use of the nohup command Analysis of host data has detected suspicious use of the nohup command on %{Compromised Host}. Attackers have been seen running the command nohup from a temporary directory to allow their executables to run in the background. It is not normal to see this command run on files located in a temporary directory. - Medium
Detected suspicious use of the useradd command [seen multiple times] Analysis of host data has detected suspicious use of the useradd command on %{Compromised Host}. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Detected suspicious use of the useradd command Analysis of host data has detected suspicious use of the useradd command on %{Compromised Host}. - Medium
Digital currency mining related behavior detected Analysis of host data on %{Compromised Host} detected the execution of a process or command normally associated with digital currency mining. - High
Disabling of auditd logging [seen multiple times] The Linux Audit system provides a way to track security-relevant information on the system. It records as much information about the events that are happening on your system as possible. Disabling auditd logging could hamper discovering violations of security policies used on the system. This behavior was seen [x] times today on the following machines: [Machine names] - Low
Executable found running from a suspicious location Analysis of host data detected an executable file on %{Compromised Host} that is running from a location in common with known suspicious files. This executable could either be legitimate activity, or an indication of a compromised host. - High
Exploitation of Xorg vulnerability [seen multiple times] Analysis of host data on %{Compromised Host} detected the user of Xorg with suspicious arguments. Attackers may use this technique in privilege escalation attempts. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Exposed Docker daemon detected Machine logs indicate that your Docker daemon (dockerd) exposes a TCP socket. By default, Docker configuration, does not use encryption or authentication when a TCP socket is enabled. This enables full access to the Docker daemon, by anyone with access to the relevant port. - Medium
Failed SSH brute force attack Failed brute force attacks were detected from the following attackers: %{Attackers}. Attackers were trying to access the host with the following user names: %{Accounts used on failed sign in to host attempts}. - Medium
Hidden file execution detected Analysis of host data indicates that a hidden file was executed by %{user name}. This activity could either be legitimate activity, or an indication of a compromised host. - Informational
Indicators associated with DDOS toolkit detected [seen multiple times] Analysis of host data on %{Compromised Host} detected file names that are part of a toolkit associated with malware capable of launching DDoS attacks, opening ports and services and taking full control over the infected system. This could also possibly be legitimate activity. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Indicators associated with DDOS toolkit detected Analysis of host data on %{Compromised Host} detected file names that are part of a toolkit associated with malware capable of launching DDoS attacks, opening ports and services and taking full control over the infected system. This could also possibly be legitimate activity. - Medium
Local host reconnaissance detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the execution of a command normally associated with common Linux bot reconnaissance. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Local host reconnaissance detected Analysis of host data on %{Compromised Host} detected the execution of a command normally associated with common Linux bot reconnaissance. - Medium
Manipulation of host firewall detected [seen multiple times] Analysis of host data on %{Compromised Host} detected possible manipulation of the on-host firewall. Attackers will often disable this to exfiltrate data. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Manipulation of host firewall detected Analysis of host data on %{Compromised Host} detected possible manipulation of the on-host firewall. Attackers will often disable this to exfiltrate data. - Medium
MITRE Caldera agent detected
(VM_MitreCalderaTools)
Machine logs indicate that the suspicious process: '%{Suspicious Process}' was running on %{Compromised Host}. This is often associated with the MITRE 54ndc47 agent which could be used maliciously to attack other machines in some way. All Medium
New SSH key added [seen multiple times] A new SSH key was added to the authorized keys file. This behavior was seen [x] times today on the following machines: [Machine names] - Low
New SSH key added A new SSH key was added to the authorized keys file - Low
Possible attack tool detected [seen multiple times] Machine logs indicate that the suspicious process: '%{Suspicious Process}' was running on %{Compromised Host}. This tool is often associated with malicious users attacking other machines in some way. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Possible attack tool detected Machine logs indicate that the suspicious process: '%{Suspicious Process}' was running on %{Compromised Host}. This tool is often associated with malicious users attacking other machines in some way. - Medium
Possible backdoor detected [seen multiple times] Analysis of host data has detected a suspicious file being downloaded then run on %{Compromised Host} in your subscription. This activity has previously been associated with installation of a backdoor. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Possible credential access tool detected [seen multiple times] Machine logs indicate a possible known credential access tool was running on %{Compromised Host} launched by process: '%{Suspicious Process}'. This tool is often associated with attacker attempts to access credentials. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Possible credential access tool detected Machine logs indicate a possible known credential access tool was running on %{Compromised Host} launched by process: '%{Suspicious Process}'. This tool is often associated with attacker attempts to access credentials. - Medium
Possible exploitation of Hadoop Yarn Analysis of host data on %{Compromised Host} detected the possible exploitation of the Hadoop Yarn service. - Medium
Possible exploitation of the mailserver detected
(VM_MailserverExploitation )
Analysis of host data on %{Compromised Host} detected an unusual execution under the mail server account Exploitation Medium
Possible Log Tampering Activity Detected [seen multiple times] Analysis of host data on %{Compromised Host} detected possible removal of files that tracks user's activity during the course of its operation. Attackers often try to evade detection and leave no trace of malicious activities by deleting such log files. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Possible Log Tampering Activity Detected Analysis of host data on %{Compromised Host} detected possible removal of files that tracks user's activity during the course of its operation. Attackers often try to evade detection and leave no trace of malicious activities by deleting such log files. - Medium
Possible loss of data detected [seen multiple times] Analysis of host data on %{Compromised Host} detected a possible data egress condition. Attackers will often egress data from machines they have compromised. This behavior was seen [x]] times today on the following machines: [Machine names] - Medium
Possible loss of data detected Analysis of host data on %{Compromised Host} detected a possible data egress condition. Attackers will often egress data from machines they have compromised. - Medium
Possible malicious web shell detected [seen multiple times] Analysis of host data on %{Compromised Host} detected a possible web shell. Attackers will often upload a web shell to a machine they have compromised to gain persistence or for further exploitation. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Possible malicious web shell detected Analysis of host data on %{Compromised Host} detected a possible web shell. Attackers will often upload a web shell to a machine they have compromised to gain persistence or for further exploitation. - Medium
Possible password change using crypt-method detected [seen multiple times] Analysis of host data on %{Compromised Host} detected password change using crypt method. Attackers can make this change to continue access and gaining persistence after compromise. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Potential overriding of common files [seen multiple times] Analysis of host data has detected common executables being overwritten on %{Compromised Host}. Attackers will overwrite common files as a way to obfuscate their actions or for persistence. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Potential overriding of common files Analysis of host data has detected common executables being overwritten on %{Compromised Host}. Attackers will overwrite common files as a way to obfuscate their actions or for persistence. - Medium
Potential port forwarding to external IP address [seen multiple times] Analysis of host data on %{Compromised Host} detected the initiation of port forwarding to an external IP address. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Potential port forwarding to external IP address Host data analysis detected the initiation of port forwarding to an external IP address. Exfiltration / CommandAndControl Medium
Potential reverse shell detected [seen multiple times] Analysis of host data on %{Compromised Host} detected a potential reverse shell. These are used to get a compromised machine to call back into a machine an attacker owns. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Potential reverse shell detected Analysis of host data on %{Compromised Host} detected a potential reverse shell. These are used to get a compromised machine to call back into a machine an attacker owns. - Medium
Privileged command run in container Machine logs indicate that a privileged command was run in a Docker container. A privileged command has extended privileges on the host machine. - Low
Privileged Container Detected Machine logs indicate that a privileged Docker container is running. A privileged container has a full access to the host's resources. If compromised, an attacker can use the privileged container to gain access to the host machine. - Low
Process associated with digital currency mining detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the execution of a process normally associated with digital currency mining. This behavior was seen over 100 times today on the following machines: [Machine name] - Medium
Process associated with digital currency mining detected Host data analysis detected the execution of a process that is normally associated with digital currency mining. Exploitation / Execution Medium
Process running in a service account became root unexpectedly.
(VM_SuspectProcessAccountPrivilegeCombo)
Process '%{Suspicious Process}' running in a service account %{User Name} became root unexpectedly. PrivilegeEscalation Medium
Process seen accessing the SSH authorized keys file in an unusual way An SSH authorized keys file has been accessed in a method similar to known malware campaigns. This access can indicate that an attacker is attempting to gain persistent access to a machine. -
Python encoded downloader detected [seen multiple times] Analysis of host data on %{Compromised Host} detected the execution of encoded Python that downloads and runs code from a remote location. This may be an indication of malicious activity. This behavior was seen [x] times today on the following machines: [Machine names] - Low
Screenshot taken on host [seen multiple times] Analysis of host data on %{Compromised Host} detected the user of a screen capture tool. Attackers may use these tools to access private data. This behavior was seen [x] times today on the following machines: [Machine names] - Low
Script extension mismatch detected [seen multiple times] Analysis of host data on %{Compromised Host} detected a mismatch between the script interpreter and the extension of the script file provided as input. This has frequently been associated with attacker script executions. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Script extension mismatch detected Analysis of host data on %{Compromised Host} detected a mismatch between the script interpreter and the extension of the script file provided as input. This has frequently been associated with attacker script executions. - Medium
Security-related process termination detected
(VM_SuspectProcessTermination)
Analysis of host data on %{Compromised Host} detected attempt to terminate processes related to security monitoring on the host. Attackers will often try to terminate such processes using predefined scripts post-compromise. Persistence, Defense Evasion Medium
Shellcode detected [seen multiple times] Analysis of host data on %{Compromised Host} detected shellcode being generated from the command line. This process could be legitimate activity, or an indication that one of your machines has been compromised. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
SSH server is running inside a container Machine logs indicate that an SSH server is running inside a Docker container. While this behavior can be intentional, it frequently indicates that a container is misconfigured or breached. - Medium
Successful SSH brute force attack Analysis of host data has detected a successful brute force attack. The IP %{Attacker source IP} was seen making multiple login attempts. Successful logins were made from that IP with the following user(s): %{Accounts used to successfully sign in to host}. This means that the host may be compromised and controlled by a malicious actor. - High
Suspicious Account Creation Detected Analysis of host data on %{Compromised Host} detected creation or use of a local account %{Suspicious account name} : this account name closely resembles a standard Windows account or group name '%{Similar To Account Name}'. This is potentially a rogue account created by an attacker, so named in order to avoid being noticed by a human administrator. - Medium
Suspicious compilation detected [seen multiple times] Analysis of host data on %{Compromised Host} detected suspicious compilation. Attackers will often compile exploits on a machine they have compromised to escalate privileges. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Suspicious compilation detected Analysis of host data on %{Compromised Host} detected suspicious compilation. Attackers will often compile exploits on a machine they have compromised to escalate privileges. - Medium
Suspicious enumeration of host configuration Analysis of host data on [machine] detected possible malicious host enumeration. These commands are sometimes run by a malicious actor when they initially compromise a machine. - Medium
Suspicious file timestamp modification Host data analysis detected a suspicious timestamp modification. Attackers often copy timestamps from existing, legitimate files to new tools to avoid detection of these newly dropped files. Persistence / DefenseEvasion Low
Suspicious first command in shell
(VM_SuspectInitialShellCommand )
Analysis of host data on %{Compromised Host} detected the execution of a suspicious first command in a shell. This may be an indication of malicious activity. Exploitation Low
Suspicious kernel module detected [seen multiple times] Analysis of host data on %{Compromised Host} detected a shared object file being loaded as a kernel module. This could be legitimate activity, or an indication that one of your machines has been compromised. This behavior was seen [x] times today on the following machines: [Machine names] - Medium
Suspicious password access [seen multiple times] Analysis of host data has detected suspicious access to encrypted user passwords on %{Compromised Host}. This behavior was seen [x] times today on the following machines: [Machine names] - Informational
Suspicious password access Analysis of host data has detected suspicious access to encrypted user passwords on %{Compromised Host}. - Informational
Suspicious PHP execution detected Machine logs indicate that a suspicious PHP process is running. The action included an attempt to run OS commands or PHP code from the command line using the PHP process. While this behavior can be legitimate, in web applications this behavior is also observed in malicious activities such as attempts to infect websites with web shells. - Medium
Suspicious request to Kubernetes API Machine logs indicate that a suspicious request was made to the Kubernetes API. The request was sent from a Kubernetes node, possibly from one of the containers running in the node. Although this behavior can be intentional, it might indicate that the node is running a compromised container. - Medium

Alerts for Azure App Service

Further details and notes

Alert (Alert Type) Description Intent
(Learn more)
Severity
An attempt to run Linux commands on a Windows App Service
(AppServices_LinuxCommandOnWindows)
Analysis of App Service processes detected an attempt to run a Linux command on a Windows App Service. This action was running by the web application. This behavior is often seen during campaigns that exploit a vulnerability in a common web application. - Medium
An IP that connected to your Azure App Service FTP Interface was found in Threat Intelligence
(AppServices_IncomingTiClientIpFtp)
Azure App Service FTP log indicates a connection from a source address that was found in the threat intelligence feed. During this connection, a user accessed the pages listed. InitialAccess Medium
Anomalous requests pattern detected
(AppServices_HttpAnomalies)
Azure App Service activity log indicates an anomalous HTTP activity to the App Service from %{Source IP.
This activity resembles a pattern of fuzzing or brute force activity.
- Medium
Attempt to run high privilege command detected
(AppServices_HighPrivilegeCommand)
Analysis of App Service processes detected an attempt to run a command that requires high privileges.
The command ran in the web application context. While this behavior can be legitimate, in web applications this behavior is also observed in malicious activities.
- Medium
Azure Security Center test alert for App Service (not a threat)
(AppServices_EICAR)
This is a test alert generated by Azure Security Center. No further action is needed. - High
Connection to web page from anomalous IP address detected
(AppServices_AnomalousPageAccess)
Azure App Service activity log indicates a connection to a sensitive web page from a source IP address that hasn't connected to it before. This might indicate that someone is attempting a brute force attack into your web app administration pages. It might also be the result of a new IP address being used by a legitimate user. InitialAccess Medium
Digital currency mining related behavior detected
(AppServices_DigitalCurrencyMining)
Analysis of host data on Inn-Flow-WebJobs detected the execution of a process or command normally associated with digital currency mining. Execution High
Executable decoded using certutil
(AppServices_ExecutableDecodedUsingCertutil)
Analysis of host data on [Compromised entity] detected that certutil.exe, a built-in administrator utility, was being used to decode an executable instead of its mainstream purpose that relates to manipulating certificates and certificate data. Attackers are known to abuse functionality of legitimate administrator tools to perform malicious actions, for example using a tool such as certutil.exe to decode a malicious executable that will then be subsequently executed. DefenseEvasion, Execution High
Fileless Attack Behavior Detected
(AppServices_FilelessAttackBehaviorDetection)
The memory of the process specified below contains behaviors commonly used by fileless attacks.
Specific behaviors include: {list of observed behaviors}
Execution Medium
Fileless Attack Technique Detected
(AppServices_FilelessAttackTechniqueDetection)
The memory of the process specified below contains evidence of a fileless attack technique. Fileless attacks are used by attackers to execute code while evading detection by security software.
Specific behaviors include: {list of observed behaviors}
Execution High
Fileless Attack Toolkit Detected
(AppServices_FilelessAttackToolkitDetection)
The memory of the process specified below contains a fileless attack toolkit: {ToolKitName}. Fileless attack toolkits typically do not have a presence on the filesystem, making detection by traditional anti-virus software difficult.
Specific behaviors include: {list of observed behaviors}
DefenseEvasion, Execution High
Phishing content hosted on Azure Webapps
(AppServices_PhishingContent)
URL used for phishing attack found on the Azure AppServices website. This URL was part of a phishing attack sent to Microsoft 365 customers. The content typically lures visitors into entering their corporate credentials or financial information into a legitimate looking website. Collection High
PHP file in upload folder
(AppServices_PhpInUploadFolder)
Azure App Service activity log indicates an access to a suspicious PHP page located in the upload folder.
This type of folder does not usually contain PHP files. The existence of this type of file might indicate an exploitation taking advantage of arbitrary file upload vulnerabilities.
Execution Medium
Raw data download detected
(AppServices_DownloadCodeFromWebsite)
Analysis of App Service processes detected an attempt to download code from raw-data websites such as Pastebin. This action was run by a PHP process. This behavior is associated with attempts to download web shells or other malicious components to the App Service. Execution Medium
Saving curl output to disk detected
(AppServices_CurlToDisk)
Analysis of App Service processes detected the running of a curl command in which the output was saved to the disk. While this behavior can be legitimate, in web applications this behavior is also observed in malicious activities such as attempts to infect websites with web shells. - Low
Spam folder referrer detected
(AppServices_SpamReferrer)
Azure App Service activity log indicates web activity that was identified as originating from a web site associated with spam activity. This can occur if your website is compromised and used for spam activity. - Low
Suspicious access to possibly vulnerable web page detected
(AppServices_ScanSensitivePage)
Azure App Service activity log indicates a web page that seems to be sensitive was accessed. This suspicious activity originated from a source IP address whose access pattern resembles that of a web scanner.
This activity is often associated with an attempt by an attacker to scan your network to try and gain access to sensitive or vulnerable web pages.
- Low
Suspicious download using Certutil detected
(AppServices_DownloadUsingCertutil)
Analysis of host data on {NAME} detected the use of certutil.exe, a built-in administrator utility, for the download of a binary instead of its mainstream purpose that relates to manipulating certificates and certificate data. Attackers are known to abuse functionality of legitimate administrator tools to perform malicious actions, for example using certutil.exe to download and decode a malicious executable that will then be subsequently executed. Execution Medium
Suspicious PHP execution detected
(AppServices_SuspectPhp)
Machine logs indicate that a suspicious PHP process is running. The action included an attempt to run operating system commands or PHP code from the command line, by using the PHP process. While this behavior can be legitimate, in web applications this behavior might indicate malicious activities, such as attempts to infect websites with web shells. Execution Medium
Suspicious PowerShell cmdlets executed
(AppServices_PowerShellPowerSploitScriptExecution)
Analysis of host data indicates execution of known malicious PowerShell PowerSploit cmdlets. Execution Medium
Suspicious process executed
(AppServices_KnownCredentialAccessTools)
Machine logs indicate that the suspicious process: '%{process path}' was running on the machine, often associated with attacker attempts to access credentials. CredentialAccess High
Suspicious process name detected
(AppServices_ProcessWithKnownSuspiciousExtension)
Analysis of host data on {NAME} detected a process whose name is suspicious, for example corresponding to a known attacker tool or named in a way that is suggestive of attacker tools that try to hide in plain sight. This process could be legitimate activity, or an indication that one of your machines has been compromised. Persistence, DefenseEvasion Medium
Suspicious SVCHOST process executed
(AppServices_SVCHostFromInvalidPath)
The system process SVCHOST was observed running in an abnormal context. Malware often use SVCHOST to mask its malicious activity. DefenseEvasion, Execution High
Suspicious User Agent detected
(AppServices_UserAgentInjection)
Azure App Service activity log indicates requests with suspicious user agent. This behavior can indicate on attempts to exploit a vulnerability in your App Service application. InitialAccess Medium
Suspicious WordPress theme invocation detected
(AppServices_WpThemeInjection)
Azure App Service activity log indicates a possible code injection activity on your App Service resource.
The suspicious activity detected resembles that of a manipulation of WordPress theme to support server side execution of code, followed by a direct web request to invoke the manipulated theme file.
This type of activity was seen in the past as part of an attack campaign over WordPress.
Execution High
Vulnerability scanner detected
(AppServices_DrupalScanner)
Azure App Service activity log indicates that a possible vulnerability scanner was used on your App Service resource.
The suspicious activity detected resembles that of tools targeting a content management system (CMS).
PreAttack Medium
Vulnerability scanner detected
(AppServices_JoomlaScanner)
Azure App Service activity log indicates that a possible vulnerability scanner was used on your App Service resource.
The suspicious activity detected resembles that of tools targeting Joomla applications.
PreAttack Medium
Vulnerability scanner detected
(AppServices_WpScanner)
Azure App Service activity log indicates that a possible vulnerability scanner was used on your App Service resource.
The suspicious activity detected resembles that of tools targeting WordPress applications.
PreAttack Medium
NMap scanning detected
(AppServices_Nmap)
Azure App Service activity log indicates a possible web fingerprinting activity on your App Service resource.
The suspicious activity detected is associated with NMAP. Attackers often use this tool for probing the web application to find vulnerabilities.
PreAttack Medium
Web fingerprinting detected
(AppServices_WebFingerprinting)
Azure App Service activity log indicates a possible web fingerprinting activity on your App Service resource.
The suspicious activity detected is associated with a tool called Blind Elephant. The tool fingerprint web servers and tries to detect the installed applications and version.
Attackers often use this tool for probing the web application to find vulnerabilities.
PreAttack Medium
Website is tagged as malicious in threat intelligence feed
(AppServices_SmartScreen)
Your website as described below is marked as a malicious site by Windows SmartScreen. If you think this is a false positive, contact Windows SmartScreen via report feedback link provided. Collection Medium

Alerts for containers - Azure Kubernetes Service clusters

Further details and notes

Alert Description Intent
(Learn more)
Severity
Container with a sensitive volume mount detected Kubernetes audit log analysis detected a new container with a sensitive volume mount. The volume that was detected is a hostPath type that mounts a sensitive file or folder from the node to the container. If the container gets compromised, the attacker can use this mount to gain access to the node. PrivilegeEscalation Medium
Digital currency mining container detected Kubernetes audit log analysis detected a container that has an image associated with a digital currency mining tool. Execution High
Exposed Kubernetes dashboard detected Kubernetes audit log analysis detected exposure of the Kubernetes Dashboard by a LoadBalancer service. Exposed dashboards allow unauthenticated access to the cluster management and pose a security threat. Initial access High
New container in the kube-system namespace detected Kubernetes audit log analysis detected a new container in the kube-system namespace that isn't among the containers that normally run in this namespace. The kube-system namespaces shouldn't contain user resources. Attackers can use this namespace to hide malicious components. Persistence Low
New high privileges role detected Kubernetes audit log analysis detected a new role with high privileges. A binding to a role with high privileges gives the user/group elevated privileges in the cluster. Unnecessarily providing elevated privileges might result in privilege escalation issues in the cluster. Persistence Low
Privileged container detected Kubernetes audit log analysis detected a new privileged container. A privileged container has access to the node's resources and breaks the isolation between containers. If compromised, an attacker can use the privileged container to gain access to the node. PrivilegeEscalation Low
Role binding to the cluster-admin role detected Kubernetes audit log analysis detected a new binding to the cluster-admin role resulting in administrator privileges. Unnecessarily providing administrator privileges might result in privilege escalation issues in the cluster. Persistence Low
Exposed Kubeflow dashboard detected The Kubernetes audit log analysis detected exposure of the Istio Ingress by a load balancer in a cluster that runs Kubeflow.
This action might expose the Kubeflow dashboard to the internet. If the dashboard is exposed to the internet, attackers can access it and run malicious containers or code on the cluster.
Learn more in Misconfigured Kubeflow workloads are a security risk.
Initial access Medium
Exposed Redis service in AKS detected The Kubernetes audit log analysis detected exposure of a Redis service by a load balancer.
If the service doesn’t require authentication, exposing it to the internet poses a security risk.
Initial access Medium
Exposed Kubernetes service detected The Kubernetes audit log analysis detected exposure of a service by a load balancer. This service is related to a sensitive application that allows high impact operations in the cluster such as running processes on the node or creating new containers.
In some cases, this service doesn’t require authentication. If the service doesn’t require authentication, exposing it to the internet poses a security risk.
Initial access Medium

Alerts for containers - host level

Further details and notes

Alert Description Intent
(Learn more)
Severity
Privileged Container Detected Machine logs indicate that a privileged Docker container is running. A privileged container has full access to the host's resources. If compromised, an attacker can use the privileged container to gain access to the host machine. PrivilegeEscalation / Execution Low
Privileged command run in container Machine logs indicate that a privileged command was run in a Docker container. A privileged command has extended privileges on the host machine. PrivilegeEscalation Low
Exposed Docker daemon detected Machine logs indicate that your Docker daemon (dockerd) exposes a TCP socket. By default, Docker configuration doesn't use encryption or authentication when a TCP socket is enabled. Anyone with access to the relevant port can then get full access to the Docker daemon. Exploitation / Execution Medium
SSH server is running inside a container Machine logs indicate that an SSH server is running inside a Docker container. While this behavior can be intentional, it frequently indicates that a container is misconfigured or breached. Execution Medium
Container with a miner image detected Machine logs indicate execution of a Docker container running an image associated with digital currency mining. This behavior can possibly indicate that your resources are being abused. Execution High
Suspicious request to Kubernetes API Machine logs indicate that a suspicious request was made to the Kubernetes API. The request was sent from a Kubernetes node, possibly from one of the containers running in the node. Although this behavior can be intentional, it might indicate that the node is running a compromised container. Execution Medium
Suspicious request to the Kubernetes Dashboard Machine logs indicate that a suspicious request was made to the Kubernetes Dashboard. The request was sent from a Kubernetes node, possibly from one of the containers running in the node. Although this behavior can be intentional, it might indicate that the node is running a compromised container. Lateral movement Medium

Alerts for SQL Database and Azure Synapse Analytics

Further details and notes

Alert Description Intent
(Learn more)
Severity
A possible vulnerability to SQL Injection An application has generated a faulty SQL statement in the database. This can indicate a possible vulnerability to SQL injection attacks. There are two possible reasons for a faulty statement. A defect in application code might have constructed the faulty SQL statement. Or, application code or stored procedures didn't sanitize user input when constructing the faulty SQL statement, which can be exploited for SQL injection. - Medium
Attempted logon by a potentially harmful application A potentially harmful application attempted to access SQL server '{name}'. PreAttack High
Log on from an unusual Azure Data Center There has been a change in the access pattern to an SQL Server, where someone has signed in to the server from an unusual Azure Data Center. In some cases, the alert detects a legitimate action (a new application or Azure service). In other cases, the alert detects a malicious action (attacker operating from breached resource in Azure). Probing Low
Log on from an unusual location There has been a change in the access pattern to SQL Server, where someone has signed in to the server from an unusual geographical location. In some cases, the alert detects a legitimate action (a new application or developer maintenance). In other cases, the alert detects a malicious action (a former employee or external attacker). Exploitation Medium
Login from a principal user not seen in 60 days A principal user not seen in the last 60 days has logged into your database. If this database is new or this is expected behavior caused by recent changes in the users accessing the database, Security Center will identify significant changes to the access patterns and attempt to prevent future false positives. Exploitation Medium
Potential SQL Brute Force attempt An abnormally high number of failed sign in attempts with different credentials have occurred. In some cases, the alert detects penetration testing in action. In other cases, the alert detects a brute force attack. Probing High
Potential SQL injection An active exploit has occurred against an identified application vulnerable to SQL injection. This means an attacker is trying to inject malicious SQL statements by using the vulnerable application code or stored procedures. - High
Unusual export location Someone has extracted a massive amount of data from your SQL Server '{SQL server name}' to an unusual location. Exfiltration High

Alerts for Azure Storage

Further details and notes

Alert Description Intent
(Learn more)
Severity
PREVIEW – Access from a Suspicious IP address Indicates that this storage account has been successfully accessed from an IP address that is considered suspicious. This alert is powered by Microsoft Threat Intelligence.
Learn more about Microsoft's threat intelligence capabilities.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
Initial Access Medium
Access from a Tor exit node to a storage account Indicates that this account has been accessed successfully from an IP address that is known as an active exit node of Tor (an anonymizing proxy). The severity of this alert considers the authentication type used (if any), and whether this is the first case of such access. Potential causes can be an attacker who has accessed your storage account by using Tor, or a legitimate user who has accessed your storage account by using Tor.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
Probing / Exploitation High
Access from an unusual location to a storage account Indicates that there was a change in the access pattern to an Azure Storage account. Someone has accessed this account from an IP address considered unfamiliar when compared with recent activity. Either an attacker has gained access to the account, or a legitimate user has connected from a new or unusual geographic location. An example of the latter is remote maintenance from a new application or developer.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
Exploitation Low
Anonymous access to a storage account Indicates that there's a change in the access pattern to a storage account. For instance, the account has been accessed anonymously (without any authentication), which is unexpected compared to the recent access pattern on this account. A potential cause is that an attacker has exploited public read access to a container that holds blob storage.
Applies to: Azure Blob Storage
Exploitation High
PREVIEW – Phishing content hosted on a storage account A URL used in a phishing attack points to your Azure Storage account. This URL was part of a phishing attack affecting users of Microsoft 365.
Typically, content hosted on such pages is designed to trick visitors into entering their corporate credentials or financial information into a web form that looks legitimate.
This alert is powered by Microsoft Threat Intelligence.
Learn more about Microsoft's threat intelligence capabilities.
Applies to: Azure Blob Storage, Azure Files
Collection High
Potential malware uploaded to a storage account Indicates that a blob containing potential malware has been uploaded to a blob container or a file share in a storage account. This alert is based on hash reputation analysis leveraging the power of Microsoft threat intelligence, which includes hashes for viruses, trojans, spyware and ransomware. Potential causes may include an intentional malware upload by an attacker, or an unintentional upload of a potentially malicious blob by a legitimate user.
Applies to: Azure Blob Storage, Azure Files (Only for transactions over REST API)
Learn more about Azure's hash reputation analysis for malware.
Learn more about Microsoft's threat intelligence capabilities.
LateralMovement High
Unusual access inspection in a storage account Indicates that the access permissions of a storage account have been inspected in an unusual way, compared to recent activity on this account. A potential cause is that an attacker has performed reconnaissance for a future attack.
Applies to: Azure Blob Storage, Azure Files
Collection Medium
Unusual amount of data extracted from a storage account Indicates that an unusually large amount of data has been extracted compared to recent activity on this storage container. A potential cause is that an attacker has extracted a large amount of data from a container that holds blob storage.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
Exfiltration Medium
Unusual application accessed a storage account Indicates that an unusual application has accessed this storage account. A potential cause is that an attacker has accessed your storage account by using a new application.
Applies to: Azure Blob Storage, Azure Files
Exploitation Medium
Unusual change of access permissions in a storage account Indicates that the access permissions of this storage container have been changed in an unusual way. A potential cause is that an attacker has changed container permissions to weaken its security posture or to gain persistence.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
Persistence Medium
Unusual data exploration in a storage account Indicates that blobs or containers in a storage account have been enumerated in an abnormal way, compared to recent activity on this account. A potential cause is that an attacker has performed reconnaissance for a future attack.
Applies to: Azure Blob Storage, Azure Files
Collection Medium
Unusual deletion in a storage account Indicates that one or more unexpected delete operations has occurred in a storage account, compared to recent activity on this account. A potential cause is that an attacker has deleted data from your storage account.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
Exfiltration Medium
Unusual upload of .cspkg to a storage account Indicates that an Azure Cloud Services package (.cspkg file) has been uploaded to a storage account in an unusual way, compared to recent activity on this account. A potential cause is that an attacker has been preparing to deploy malicious code from your storage account to an Azure cloud service.
Applies to: Azure Blob Storage, Azure Data Lake Storage Gen2
LateralMovement / Execution Medium
Unusual upload of .exe to a storage account Indicates that an .exe file has been uploaded to a storage account in an unusual way, compared to recent activity on this account. A potential cause is that an attacker has uploaded a malicious executable file to your storage account, or that a legitimate user has uploaded an executable file.
Applies to: Azure Blob Storage, Azure Files, Azure Data Lake Storage Gen2
LateralMovement / Execution Medium

Alerts for Azure Cosmos DB (Preview)

Further details and notes

Alert Description Intent
(Learn more)
Severity
PREVIEW - Access from an unusual location to a Cosmos DB account Indicates that there was a change in the access pattern to an Azure Cosmos DB account. Someone has accessed this account from an unfamiliar IP address, compared to recent activity. Either an attacker has accessed the account, or a legitimate user has accessed it from a new and unusual geographical location. An example of the latter is remote maintenance from a new application or developer. Exploitation Medium
PREVIEW - Unusual amount of data extracted from a Cosmos DB account Indicates that there was a change in the data extraction pattern from an Azure Cosmos DB account. Someone has extracted an unusual amount of data compared to recent activity. An attacker might have extracted a large amount of data from an Azure Cosmos DB database (for example, data exfiltration or leakage, or an unauthorized transfer of data). Or, a legitimate user or application might have extracted an unusual amount of data from a container (for example, for maintenance backup activity). Exfiltration Medium

Alerts for Azure network layer

Further details and notes

Alert Description Intent
(Learn more)
Severity
Network communication with a malicious machine detected Network traffic analysis indicates that your machine (IP %{Victim IP}) has communicated with what is possibly a Command and Control center. When the compromised resource is a load balancer or an application gateway, the suspected activity might indicate that one or more of the resources in the backend pool (of the load balancer or application gateway) has communicated with what is possibly a Command and Control center. - Medium
Possible compromised machine detected Threat intelligence indicates that your machine (at IP %{Machine IP}) may have been compromised by a malware of type Conficker. Conficker was a computer worm that targets the Microsoft Windows operating system and was first detected in November 2008. Conficker infected millions of computers including government, business and home computers in over 200 countries/regions, making it the largest known computer worm infection since the 2003 Welchia worm. - Medium
Possible incoming %{Service Name} brute force attempts detected Network traffic analysis detected incoming %{Service Name} communication to %{Victim IP}, associated with your resource %{Compromised Host} from %{Attacker IP}. When the compromised resource is a load balancer or an application gateway, the suspected incoming traffic has been forwarded to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows suspicious activity between %{Start Time} and %{End Time} on port %{Victim Port}. This activity is consistent with brute force attempts against %{Service Name} servers. - Medium
Possible incoming SQL brute force attempts detected Network traffic analysis detected incoming SQL communication to %{Victim IP}, associated with your resource %{Compromised Host}, from %{Attacker IP}. When the compromised resource is a load balancer or an application gateway, the suspected incoming traffic has been forwarded to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows suspicious activity between %{Start Time} and %{End Time} on port %{Port Number} (%{SQL Service Type}). This activity is consistent with brute force attempts against SQL servers. - Medium
Possible outgoing denial-of-service attack detected Network traffic analysis detected anomalous outgoing activity originating from %{Compromised Host}, a resource in your deployment. This activity may indicate that your resource was compromised and is now engaged in denial-of-service attacks against external endpoints. When the compromised resource is a load balancer or an application gateway, the suspected activity might indicate that one or more of the resources in the backend pool (of the load balancer or application gateway) was compromised. Based on the volume of connections, we believe that the following IPs are possibly the targets of the DOS attack: %{Possible Victims}. Note that it is possible that the communication to some of these IPs is legitimate. - Medium
Possible outgoing port scanning activity detected Network traffic analysis detected suspicious outgoing traffic from %{Compromised Host}. This traffic may be a result of a port scanning activity. When the compromised resource is a load balancer or an application gateway, the suspected outgoing traffic has been originated from to one or more of the resources in the backend pool (of the load balancer or application gateway). If this behavior is intentional, please note that performing port scanning is against Azure Terms of service. If this behavior is unintentional, it may mean your resource has been compromised. - Medium
Suspicious incoming RDP network activity from multiple sources Network traffic analysis detected anomalous incoming Remote Desktop Protocol (RDP) communication to %{Victim IP}, associated with your resource %{Compromised Host}, from multiple sources. When the compromised resource is a load balancer or an application gateway, the suspected incoming traffic has been forwarded to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows %{Number of Attacking IPs} unique IPs connecting to your resource, which is considered abnormal for this environment. This activity may indicate an attempt to brute force your RDP end point from multiple hosts (Botnet) - Medium
Suspicious incoming RDP network activity Network traffic analysis detected anomalous incoming Remote Desktop Protocol (RDP) communication to %{Victim IP}, associated with your resource %{Compromised Host}, from %{Attacker IP}. When the compromised resource is a load balancer or an application gateway, the suspected incoming traffic has been forwarded to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows %{Number of Connections} incoming connections to your resource, which is considered abnormal for this environment. This activity may indicate an attempt to brute force your RDP end point - Medium
Suspicious incoming SSH network activity from multiple sources Network traffic analysis detected anomalous incoming SSH communication to %{Victim IP}, associated with your resource %{Compromised Host}, from multiple sources. When the compromised resource is a load balancer or an application gateway, the suspected incoming traffic has been forwarded to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows %{Number of Attacking IPs} unique IPs connecting to your resource, which is considered abnormal for this environment. This activity may indicate an attempt to brute force your SSH end point from multiple hosts (Botnet) - Medium
Suspicious incoming SSH network activity Network traffic analysis detected anomalous incoming SSH communication to %{Victim IP}, associated with your resource %{Compromised Host}, from %{Attacker IP}. When the compromised resource is a load balancer or an application gateway, the suspected incoming traffic has been forwarded to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows %{Number of Connections} incoming connections to your resource, which is considered abnormal for this environment. This activity may indicate an attempt to brute force your SSH end point - Medium
Suspicious outgoing %{Attacked Protocol} traffic detected Network traffic analysis detected suspicious outgoing traffic from %{Compromised Host} to destination port %{Most Common Port}. When the compromised resource is a load balancer or an application gateway, the suspected outgoing traffic has been originated from to one or more of the resources in the backend pool (of the load balancer or application gateway). This behavior may indicate that your resource is taking part in %{Attacked Protocol} brute force attempts or port sweeping attacks. - Medium
Suspicious outgoing RDP network activity to multiple destinations Network traffic analysis detected anomalous outgoing Remote Desktop Protocol (RDP) communication to multiple destinations originating from %{Compromised Host} (%{Attacker IP}), a resource in your deployment. When the compromised resource is a load balancer or an application gateway, the suspected outgoing traffic has been originated from to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows your machine connecting to %{Number of Attacked IPs} unique IPs, which is considered abnormal for this environment. This activity may indicate that your resource was compromised and is now used to brute force external RDP end points. Note that this type of activity could possibly cause your IP to be flagged as malicious by external entities. - High
Suspicious outgoing RDP network activity Network traffic analysis detected anomalous outgoing Remote Desktop Protocol (RDP) communication to %{Victim IP} originating from %{Compromised Host} (%{Attacker IP}), a resource in your deployment. When the compromised resource is a load balancer or an application gateway, the suspected outgoing traffic has been originated from to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows %{Number of Connections} outgoing connections from your resource, which is considered abnormal for this environment. This activity may indicate that your machine was compromised and is now used to brute force external RDP end points. Note that this type of activity could possibly cause your IP to be flagged as malicious by external entities. - High
Suspicious outgoing SSH network activity to multiple destinations Network traffic analysis detected anomalous outgoing SSH communication to multiple destinations originating from %{Compromised Host} (%{Attacker IP}), a resource in your deployment. When the compromised resource is a load balancer or an application gateway, the suspected outgoing traffic has been originated from to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows your resource connecting to %{Number of Attacked IPs} unique IPs, which is considered abnormal for this environment. This activity may indicate that your resource was compromised and is now used to brute force external SSH end points. Note that this type of activity could possibly cause your IP to be flagged as malicious by external entities. - Medium
Suspicious outgoing SSH network activity Network traffic analysis detected anomalous outgoing SSH communication to %{Victim IP} originating from %{Compromised Host} (%{Attacker IP}), a resource in your deployment. When the compromised resource is a load balancer or an application gateway, the suspected outgoing traffic has been originated from to one or more of the resources in the backend pool (of the load balancer or application gateway). Specifically, sampled network data shows %{Number of Connections} outgoing connections from your resource, which is considered abnormal for this environment. This activity may indicate that your resource was compromised and is now used to brute force external SSH end points. Note that this type of activity could possibly cause your IP to be flagged as malicious by external entities. - Medium
Traffic detected from IP addresses recommended for blocking Azure Security Center detected inbound traffic from IP addresses that are recommended to be blocked. This typically occurs when this IP address doesn't communicate regularly with this resource. Alternatively, the IP address has been flagged as malicious by Security Center's threat intelligence sources. Probing Low

Alerts for Azure Resource Manager (Preview)

Further details and notes

Alert Description Intent
(Learn more)
Severity
PREVIEW - Activity from anonymous IP addresses Users activity from an IP address that has been identified as an anonymous proxy IP address has been detected.
These proxies are used by people who want to hide their device's IP address, and can be used for malicious intent. This detection uses a machine learning algorithm that reduces false positives, such as mis-tagged IP addresses that are widely used by users in the organization.
- Medium
PREVIEW - Activity from infrequent country Activity from a location that wasn't recently or ever visited by any user in the organization has occurred.
This detection considers past activity locations to determine new and infrequent locations. The anomaly detection engine stores information about previous locations used by users in the organization.
- Medium
PREVIEW - Impossible travel activity Two user activities (in a single or multiple sessions) have occurred, originating from geographically distant locations. This occurs within a time period shorter than the time it would have taken the user to travel from the first location to the second. This indicates that a different user is using the same credentials.
This detection uses a machine learning algorithm that ignores obvious false positives contributing to the impossible travel conditions, such as VPNs and locations regularly used by other users in the organization. The detection has an initial learning period of seven days, during which it learns a new user's activity pattern.
- Medium
PREVIEW - Azurite toolkit run detected A known cloud-environment reconnaissance toolkit run has been detected in your environment. The tool Azurite can be used by an attacker (or penetration tester) to map your subscriptions' resources and identify insecure configurations. - High
PREVIEW - Suspicious management session using PowerShell detected Subscription activity logs analysis has detected suspicious behavior. A principal that doesn't regularly use PowerShell to manage the subscription environment is now using PowerShell, and performing actions that can secure persistence for an attacker. Persistence Medium
PREVIEW - Suspicious management session using an inactive account detected Subscription activity logs analysis has detected suspicious behavior. A principal not in use for a long period of time is now performing actions that can secure persistence for an attacker. Persistence Medium
PREVIEW – MicroBurst toolkit "Get-AzureDomainInfo" function run detected A known cloud-environment reconnaissance toolkit run has been detected in your environment. The tool "MicroBurst" (see https://github.com/NetSPI/MicroBurst) can be used by an attacker (or penetration tester) to map your subscription(s) resources, identify insecure configurations, and leak confidential information. - High
PREVIEW – MicroBurst toolkit "Get-AzurePasswords" function run detected A known cloud-environment reconnaissance toolkit run has been detected in your environment. The tool "MicroBurst" (see https://github.com/NetSPI/MicroBurst) can be used by an attacker (or penetration tester) to map your subscription(s) resources, identify insecure configurations, and leak confidential information. - High
PREVIEW – Suspicious management session using Azure portal detected Analysis of your subscription activity logs has detected a suspicious behavior. A principal that doesn't regularly use the Azure portal (Ibiza) to manage the subscription environment (hasn't used Azure portal to manage for the last 45 days, or a subscription that it is actively managing), is now using the Azure portal and performing actions that can secure persistence for an attacker. - Medium
PREVIEW - Use of advanced Azure persistence techniques Subscription activity logs analysis has detected suspicious behavior. Customized roles have been given legitimized identity entities. This can lead the attacker to gain persistency in an Azure customer environment. -

Alerts for Azure Key Vault

Further details and notes

Alert (Alert Type) Description Intent
(Learn more)
Severity
Access from a TOR exit node to a key vault
KV_TORAccess
A key vault has been accessed from a known TOR exit node. This could be an indication that a threat actor has accessed the key vault and is using the TOR network to hide their source location. We recommend further investigations. CredentialAccess Medium
High volume of operations in a key vault
KV_OperationVolumeAnomaly
An anomalous number of key vault operations were performed by a user, service principal, and/or a specific key vault. This anomalous activity pattern may be legitimate, but it could be an indication that a threat actor has gained access to the key vault and the secrets contained within it. We recommend further investigations. CredentialAccess Medium
Suspicious policy change and secret query in a key vault
KV_PutGetAnomaly
A user or service principal has performed an anomalous Vault Put policy change operation followed by one or more Secret Get operations. This pattern is not normally performed by the specified user or service principal. This may be legitimate activity, but it could be an indication that a threat actor has updated the key vault policy to access previously inaccessible secrets. We recommend further investigations. CredentialAccess Medium
Suspicious secret listing and query in a key vault
KV_ListGetAnomaly
A user or service principal has performed an anomalous Secret List operation followed by one or more Secret Get operations. This pattern is not normally performed by the specified user or service principal and is typically associated with secret dumping. This may be legitimate activity, but it could be an indication that a threat actor has gained access to the key vault and is trying to discover secrets that can be used to move laterally through your network and/or gain access to sensitive resources. We recommend further investigations. CredentialAccess Medium
Unusual application accessed a key vault
KV_AppAnomaly
A key vault has been accessed by a service principal that does not normally access it. This anomalous access pattern may be legitimate activity, but it could be an indication that a threat actor has gained access to the key vault in an attempt to access the secrets contained within it. We recommend further investigations. CredentialAccess Medium
Unusual operation pattern in a key vault
KV_OperationPatternAnomaly
An anomalous pattern of key vault operations was performed by a user, service principal, and/or a specific key vault. This anomalous activity pattern may be legitimate, but it could be an indication that a threat actor has gained access to the key vault and the secrets contained within it. We recommend further investigations. CredentialAccess Medium
Unusual user accessed a key vault
KV_UserAnomaly
A key vault has been accessed by a user that does not normally access it. This anomalous access pattern may be legitimate activity, but it could be an indication that a threat actor has gained access to the key vault in an attempt to access the secrets contained within it. We recommend further investigations. CredentialAccess Medium
Unusual user-application pair accessed a key vault
KV_UserAppAnomaly
A key vault has been accessed by a user-service principal pair that does not normally access it. This anomalous access pattern may be legitimate activity, but it could be an indication that a threat actor has gained access to the key vault in an attempt to access the secrets contained within it. We recommend further investigations. CredentialAccess Medium
User accessed high volume of key vaults
KV_AccountVolumeAnomaly
A user or service principal has accessed an anomalously high volume of key vaults. This anomalous access pattern may be legitimate activity, but it could be an indication that a threat actor has gained access to multiple key vaults in an attempt to access the secrets contained within them. We recommend further investigations. CredentialAccess Medium

Alerts for Azure DDoS Protection

Further details and notes

Alert Description Intent
(Learn more)
Severity
DDoS Attack detected for Public IP DDoS Attack detected for Public IP (IP address) and being mitigated. Probing High
DDoS Attack mitigated for Public IP DDoS Attack mitigated for Public IP (IP address). Probing Low

Security incident alerts

Further details and notes

Alert Description Intent
(Learn more)
Severity
Security incident with shared process detected The incident which started on {Start Time (UTC)} and recently detected on {Detected Time (UTC)} indicates that an attacker has {Action taken} your resource {Host} - High
Security incident detected on multiple resources The incident which started on {Start Time (UTC)} and recently detected on {Detected Time (UTC)} indicates that similar attack methods were performed on your cloud resources {Host} - Medium
Security incident detected from same source The incident which started on {Start Time (UTC)} and recently detected on {Detected Time (UTC)} indicates that an attacker has {Action taken} your resource {Host} - High
Security incident detected on multiple machines The incident which started on {Start Time (UTC)} and recently detected on {Detected Time (UTC)} indicates that an attacker has {Action taken} your resources {Host} - Medium

Intentions

Understanding the intention of an attack can help you investigate and report the event more easily. Azure Security Center alerts include the 'intent' field to help with these efforts.

The series of steps that describe the progression of a cyberattack from reconnaissance to data exfiltration is often referred to as a "kill chain".

Security Center's supported kill chain intents are based on the MITRE ATT&CK™ framework and described in the table below.

Intent Description
PreAttack PreAttack could be either an attempt to access a certain resource regardless of a malicious intent, or a failed attempt to gain access to a target system to gather information prior to exploitation. This step is usually detected as an attempt, originating from outside the network, to scan the target system and identify an entry point.
Further details on the PreAttack stage can be read in MITRE's page.
InitialAccess InitialAccess is the stage where an attacker manages to get a foothold on the attacked resource. This stage is relevant for compute hosts and resources such as user accounts, certificates etc. Threat actors will often be able to control the resource after this stage.
Persistence Persistence is any access, action, or configuration change to a system that gives a threat actor a persistent presence on that system. Threat actors will often need to maintain access to systems through interruptions such as system restarts, loss of credentials, or other failures that would require a remote access tool to restart or provide an alternate backdoor for them to regain access.
PrivilegeEscalation Privilege escalation is the result of actions that allow an adversary to obtain a higher level of permissions on a system or network. Certain tools or actions require a higher level of privilege to work and are likely necessary at many points throughout an operation. User accounts with permissions to access specific systems or perform specific functions necessary for adversaries to achieve their objective may also be considered an escalation of privilege.
DefenseEvasion Defense evasion consists of techniques an adversary may use to evade detection or avoid other defenses. Sometimes these actions are the same as (or variations of) techniques in other categories that have the added benefit of subverting a particular defense or mitigation.
CredentialAccess Credential access represents techniques resulting in access to or control over system, domain, or service credentials that are used within an enterprise environment. Adversaries will likely attempt to obtain legitimate credentials from users or administrator accounts (local system administrator or domain users with administrator access) to use within the network. With sufficient access within a network, an adversary can create accounts for later use within the environment.
Discovery Discovery consists of techniques that allow the adversary to gain knowledge about the system and internal network. When adversaries gain access to a new system, they must orient themselves to what they now have control of and what benefits operating from that system give to their current objective or overall goals during the intrusion. The operating system provides many native tools that aid in this post-compromise information-gathering phase.
LateralMovement Lateral movement consists of techniques that enable an adversary to access and control remote systems on a network and could, but does not necessarily, include execution of tools on remote systems. The lateral movement techniques could allow an adversary to gather information from a system without needing additional tools, such as a remote access tool. An adversary can use lateral movement for many purposes, including remote Execution of tools, pivoting to additional systems, access to specific information or files, access to additional credentials, or to cause an effect.
Execution The execution tactic represents techniques that result in execution of adversary-controlled code on a local or remote system. This tactic is often used in conjunction with lateral movement to expand access to remote systems on a network.
Collection Collection consists of techniques used to identify and gather information, such as sensitive files, from a target network prior to exfiltration. This category also covers locations on a system or network where the adversary may look for information to exfiltrate.
Exfiltration Exfiltration refers to techniques and attributes that result or aid in the adversary removing files and information from a target network. This category also covers locations on a system or network where the adversary may look for information to exfiltrate.
CommandAndControl The command and control tactic represents how adversaries communicate with systems under their control within a target network.
Impact Impact events primarily try to directly reduce the availability or integrity of a system, service, or network; including manipulation of data to impact a business or operational process. This would often refer to techniques such as ransomware, defacement, data manipulation, and others.

Next steps

To learn more about alerts, see the following: