Most Important Detection 2026: DCSync Replication Rights Abuse from Non-DC Host

Ibrahim Saud@tektrix

•updated 7 days ago•1•0•6

This rule detects unauthorized directory replication requests (DRSUAPI) using Active Directory Event ID 4662. It specifically monitors for access requests to sensitive directory replication object GUIDs (Get-Changes / Get-Changes-All) where the requesting user account is not a domain controller computer account. This behavior is a common indicator of DCSync credential dumping attacks performed by tools like Mimikatz or Impacket.