Posture check · Delegation and Kerberos
Non-default account can replicate directory secrets (T1003.006)
This account can copy every password hash from the domain, or can give itself that permission. Only domain controllers and the built-in administrator groups need it.
Why it matters
Anyone who takes over this account can read every password in the domain without touching a domain controller.
How GraphnAI finds it
It runs after every sync, on each connected domain or tenant on its own. It applies to Active Directory.
It reads:
- The directory attributes
objectSid,userAccountControlandaccountEnabled - Directory permissions (access control entries)
- The privilege tier classification
- The forest each domain belongs to
Tiered Fidelity™ level: Constrained
Every finding from this check carries the Constrained level.
- TheoreticalConfigured in the directory. Nothing else checked.
- ConstrainedThis checkA constraint on it has been checked.
- ValidatedTelemetry has seen it in use.
How Select Fire™ fixes it
How to fix it
Remove this account's replication and permission-changing rights on the domain.
What Select Fire changes
Select Fire opens from the finding and simulates each change on your live graph before anything changes in your directory.
- Remove the permissionSemi-Auto: you authorize each change. Full-Auto never runs it.
The account can no longer copy directory secrets or change the domain's permissions. Replication stops for anything that relied on this account. You can undo the change.
By hand: Remove this account's replication rights from the domain's permissions. Keep them for domain controllers and the built-in administrator groups only.
If someone uses it
This detection rule raises an alert when the attack this exposure invites shows up in your domain controllers' events.
Related checks
MITRE ATT&CK® technique names and MITRE D3FEND™ technique labels: © The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. ATT&CK® is a registered trademark and D3FEND™ a trademark of The MITRE Corporation.
See it on your own directory.
The Public Preview is free for 30 days from your first sync, on your own server.