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Detectionmediumtest

Microsoft 365 - Potential Ransomware Activity

Detects when a Microsoft Cloud App Security reported when a user uploads files to the cloud that might be infected with ransomware.

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Austin SongerCreated Thu Aug 19Updated Sun Oct 09bd132164-884a-48f1-aa2d-c6d646b04c69cloud
Log Source
Microsoft 365threat_management
ProductMicrosoft 365← raw: m365
Servicethreat_management← raw: threat_management
Detection Logic
Detection Logic1 selector
detection:
    selection:
        eventSource: SecurityComplianceCenter
        eventName: 'Potential ransomware activity'
        status: success
    condition: selection
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References
1
Resolving title…
learn.microsoft.com
2
Resolving title…
learn.microsoft.com
MITRE ATT&CK
Rule Metadata
Rule ID
bd132164-884a-48f1-aa2d-c6d646b04c69
Status
test
Level
medium
Type
Detection
Created
Thu Aug 19
Modified
Sun Oct 09
Author
Austin Songer
Path
rules/cloud/m365/threat_management/microsoft365_potential_ransomware_activity.yml
Raw Tags
attack.impactattack.t1486
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