M365 Short Lived Accounts
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About the rule
Rule Type
Advanced
Rule Description
Detects user accounts that are created and deleted within 24 hours which is a tactic often used by attackers to avoid detection.
Severity
Critical
Rule Requirement
Criteria
Action1: actionname = "DETECTION_ACTION_M365_USER_CREATED" Action2: actionname = "null" AND TARGET_ID = Action1.TARGET_ID sequence:Action1 followedby Action2 within 1440m select Action1.CALLER,Action1.TARGET,Action1.RESULT,Action1.MODIFIED_PROPERTIES_GD,Action1.TARGET_ID,Action1.OPERATION,
Detection
Execution Mode
realtime
Log Sources
Microsoft 365
