Regsvr32 Rundll32 Image Loads Abnormal Extension

This query is looking for regsvr32.exe or rundll32.exe loading DLL images with other extensions than .dll.

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: microsoftthreatprotection
Log source service: devicenetworkevents deviceprocessevents

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Detection rules

Regsvr32 Rundll32 Image Loads Abnormal Extension

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules