Integrate Azure Security Center with Azure VMware Solution
Azure Security Center provides advanced threat protection across your Azure VMware Solution and on-premises virtual machines (VMs). It assesses the vulnerability of Azure VMware Solution VMs and raises alerts as needed. These security alerts can be forwarded to Azure Monitor for resolution. You can define security policies in Azure Security Center. For more information, see Working with security policies.
Azure Security Center offers many features, including:
- File integrity monitoring
- Fileless attack detection
- Operating system patch assessment
- Security misconfigurations assessment
- Endpoint protection assessment
The diagram shows the integrated monitoring architecture of integrated security for Azure VMware Solution VMs.
Log Analytics agent collects log data from Azure, Azure VMware Solution, and on-premises VMs. The log data is sent to Azure Monitor Logs and stored in a Log Analytics Workspace. Each workspace has its own data repository and configuration to store data. Once the logs are collected, Azure Security Center assesses the vulnerability status of Azure VMware Solution VMs and raises an alert for any critical vulnerability. Once assessed, Azure Security Center forwards the vulnerability status to Azure Sentinel to create an incident and map with other threats. Azure Security Center is connected to Azure Sentinel using Azure Security Center Connector.
Create a Log Analytics workspace to collect data from various sources.
Azure Security Center is a pre-configured tool that doesn't require deployment, but you'll need to enable it.
Add Azure VMware Solution VMs to Security Center
In the Azure portal, search on Azure Arc and select it.
Under Resources, select Servers and then +Add.
Select Generate script.
On the Prerequisites tab, select Next.
On the Resource details tab, fill in the following details and then select Next: Tags.
Proxy Server details
On the Tags tab, select Next.
On the Download and run script tab, select Download.
Specify your operating system and run the script on your Azure VMware Solution VM.
View recommendations and passed assessments
Recommendations and assessments provide you with the security health details of your resource.
In Azure Security Center, select Inventory from the left pane.
For Resource type, select Servers - Azure Arc.
Select the name of your resource. A page opens showing the security health details of your resource.
Under Recommendation list, select the Recommendations, Passed assessments, and Unavailable assessments tabs to view these details.
Deploy an Azure Sentinel workspace
Azure Sentinel provides security analytics, alert detection, and automated threat response across an environment. It's a cloud-native, security information event management (SIEM) solution that's built on top of a Log Analytics Workspace.
Since Azure Sentinel is built on top of a Log Analytics workspace, you'll only need to select the workspace you want to use.
In the Azure portal, search for Azure Sentinel, and select it.
On the Azure Sentinel workspaces page, select +Add.
Select the Log Analytics workspace and select Add.
Enable data collector for security events
On the Azure Sentinel workspaces page, select the configured workspace.
Under Configuration, select Data connectors.
Under the Connector Name column, select Security Events from the list, and then select Open connector page.
On the connector page, select the events you wish to stream and then select Apply Changes.
Connect Azure Sentinel with Azure Security Center
On the Azure Sentinel workspace page, select the configured workspace.
Under Configuration, select Data connectors.
Select Azure Security Center from the list and then select Open connector page.
Select Connect to connect the Azure Security Center with Azure Sentinel.
Enable Create incident to generate an incident for Azure Security Center.
Create rules to identify security threats
After connecting data sources to Azure Sentinel, you can create rules to generate alerts for detected threats. In the following example, we'll create a rule for attempts to sign in to Windows server with the wrong password.
On the Azure Sentinel overview page, under Configurations, select Analytics.
Under Configurations, select Analytics.
Select +Create and on the drop-down, select Scheduled query rule.
On the General tab, enter the required information and then select Next: Set rule logic.
On the Set rule logic tab, enter the required information, and then select Next.
Rule query (here showing our example query)
SecurityEvent |where Activity startswith '4625' |summarize count () by IpAddress,Computer |where count_ > 3
On the Incident settings tab, enable Create incidents from alerts triggered by this analytics rule and select Next: Automated response.
Select Next: Review.
On the Review and create tab, review the information, and select Create.
After the third failed attempt to sign in to Windows server, the created rule triggers an incident for every unsuccessful attempt.
You can view generated incidents with Azure Sentinel. You can also assign incidents and close them once they're resolved, all from within Azure Sentinel.
Go to the Azure Sentinel overview page.
Under Threat Management, select Incidents.
Select an incident and then assign it to a team for resolution.
After resolving the issue, you can close it.
Hunt security threats with queries
You can create queries or use the available pre-defined query in Azure Sentinel to identify threats in your environment. The following steps run a pre-defined query.
On the Azure Sentinel overview page, under Threat management, select Hunting. A list of pre-defined queries is displayed.
You can also create a new query by selecting New Query.
Select a query and then select Run Query.
Select View Results to check the results.
Now that you've covered how to protect your Azure VMware Solution VMs, you may want to learn about: