DCSync Directory Replication Rights Abuse

Lacey Cochrane@NullVectorX

•updated Sep 3, 2026•4•0•16

Detects unauthorized attempts to exercise Active Directory replication rights (DS-Replication-Get-Changes). This occurs when non-machine accounts access specific control access rights (GUIDs 1131f6aa, 1131f6ad, or 89e95b76) on a domain controller, a common indicator of a DCSync attack used to extract password hashes from Active Directory.