Microsoft Entra ID UserAgent OS Missmatch

This query extracts the operating system from the UserAgent header and compares this to the DeviceDetail information present in Microsoft Entra ID.

Detection logic

Detection requirements

Platform: Containers ESXi Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: azureactivedirectory
Log source service: aadnoninteractiveusersigninlogs signinlogs

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Detection rules

Microsoft Entra ID UserAgent OS Missmatch

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules