AD Privileged Users or Groups Reconnaissance

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About the rule

Rule Type

Standard

Rule Description

Detect priv users or groups recon based on 4661 eventid and known privileged users or groups SIDs

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Object Handle Requested" AND OBJECTTYPE = "SAM_USER,SAM_GROUP" AND (OBJECTNAME endswith "-512,-502,-500,-505,-519,-520,-544,-551,-555" OR OBJECTNAME contains "admin") AND USERNAME notendswith "$" select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.OBJECTTYPE,Action1.PROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Active Directory

Author

Samir Bousseaden