DCSync Directory Replication (DsGetNcChanges) from Non-DC Source

Ethan Andrews@eandrews

•updated Jul 24, 2026•35•0•86

Detects Active Directory replication requests (DsGetNcChanges) performed by accounts not identified as Domain Controllers. This behavior is indicative of a DCSync attack, where an adversary uses the directory replication API to extract credentials from Active Directory, potentially leveraging exploited computer accounts.