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MediumSigmaHQFlorian Roth (Nextron Systems)

Regsvr32 DLL Execution With Uncommon Extension

Detects a "regsvr32" execution where the DLL doesn't contain a common file extension.

Detection logic

Detection requirements

Platform
LinuxmacOSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
windows
Log source category
process_creation

Known benign triggers

  • Other legitimate extensions currently not in the list either from third party or specific Windows components.

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