Posture check · Account security
Built-in Administrator used in the last 14 days (T1078.001)
The built-in Administrator (RID 500) is reserved for break-glass use.
Why it matters
Each use leaves the account's tickets and password hashes on the computers it logs on to, where they can be stolen. A shared account also hides who did what.
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
objectSidandlastLogonTimestamp
Tiered Fidelity™ level: Theoretical
Every finding from this check carries the Theoretical level.
- TheoreticalThis checkConfigured in the directory. Nothing else checked.
- ConstrainedA constraint on it has been checked.
- ValidatedTelemetry has seen it in use.
Why there's no automatic fix
The built-in Administrator is on GraphnAI's deny list, so no automated action changes it.
How to fix it
Find out who used the account and why. Reserve it for break-glass use, and move day-to-day administration onto named administrator accounts.
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.