ASR Bypassing Writing Executable Content

The query checks for any file which has been created/written by an Office application and shortly after renamed to one of the deny-listed "executable extensions" which are text files. (e.g. ps1, .js, .vbs).

Detection logic

Detection requirements

Platform: IaaS Linux macOS SaaS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: microsoftthreatprotection
Log source service: devicefileevents

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Detection rules

ASR Bypassing Writing Executable Content

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules