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MediumSigmaHQFlorian Roth (Nextron Systems) +1

Dynamic .NET Compilation Via Csc.EXE

Detects execution of "csc.exe" to compile .NET code. Attackers often leverage this to compile code on the fly and use it in other stages.

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

  • Ansible
  • Legitimate Microsoft software - https://twitter.com/gabriele_pippi/status/1206907900268072962
  • Legitimate software from program files - https://twitter.com/gN3mes1s/status/1206874118282448897

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