Queries for the OfficeActivity table
All Office Activity
All the events provided by Office Activity.
OfficeActivity
| project TimeGenerated, UserId, Operation, OfficeWorkload, RecordType, _ResourceId
| sort by TimeGenerated desc nulls last
Users accessing files
Users sorted by number of OneDrive and SharePoint files they accessed.
OfficeActivity
| where OfficeWorkload in ("OneDrive", "SharePoint") and Operation in ("FileDownloaded", "FileAccessed")
| summarize AccessedFilesCount = dcount(OfficeObjectId) by UserId, _ResourceId
| sort by AccessedFilesCount desc nulls last
File upload operation
Lists users sorted by number of files they uploaded to OneDrive and SharePoint.
OfficeActivity
| where OfficeWorkload in ("OneDrive", "SharePoint") and Operation in ("FileUploaded")
| summarize AccessedFilesCount = dcount(OfficeObjectId) by UserId, _ResourceId
| sort by AccessedFilesCount desc nulls last
Office activity for user
The query presents user's activity over Office.
// Replace the UPN in the query with the UPN of the user of interest
let v_Users_UPN= "osotnoc@contoso.com";
OfficeActivity
| where UserId==v_Users_UPN
| project TimeGenerated, OfficeWorkload, Operation, ResultStatus, OfficeObjectId, _ResourceId
Creation of Forward rule
Lists creation of email forward rules.
OfficeActivity
| where OfficeWorkload == "Exchange"
| where Operation in~ ("New-TransportRule", "Set-TransportRule")
| extend RuleName = case(Operation =~ "Set-TransportRule", tostring(OfficeObjectId), Operation =~ "New-TransportRule", tostring(parse_json(Parameters)[1].Value), "Unknown")
| project TimeGenerated, ClientIP, UserId, Operation, RuleName, _ResourceId
Suspicious file name
Operations on files with name that might indicate obfuscation of an executable.
OfficeActivity
| where RecordType =~ "SharePointFileOperation" and isnotempty(SourceFileName)
| where OfficeObjectId has ".exe." and OfficeObjectId matches regex @"\.exe\.\w{0,4}$"
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