Token replay: non-interactive sign-in via Microsoft Authentication Broker from unrecognized device without MFA
This rule detects non-interactive sign-in events involving the 'Microsoft Authentication Broker' where the authentication was performed using only single-factor authentication and originated from a device that is not recognized or lacks trust information (unmanaged/unknown device). This pattern is consistent with token replay attacks or session hijacking, where an adversary uses stolen authentication artifacts to access resources without undergoing standard multi-factor authentication.
Microsoft Sentinel (KQL)
