CLR DLL Loaded Via Office Applications

 Original Source: [Sigma source]
Title: CLR DLL Loaded Via Office Applications
Status: test
Description:Detects CLR DLL being loaded by an Office Product
References:
  -https://medium.com/threatpunter/detecting-adversary-tradecraft-with-image-load-event-logging-and-eql-8de93338c16
Author: Antonlovesdnb
Date: 2020-02-19
modified:2023-03-29
Tags:
  • -'attack.execution'
  • -'attack.t1204.002'
Logsource:
  • category: image_load
  • product: windows
Detection:
  selection:
    Image|endswith:
      -'\excel.exe'
      -'\mspub.exe'
      -'\outlook.exe'
      -'\onenote.exe'
      -'\onenoteim.exe'
      -'\powerpnt.exe'
      -'\winword.exe'

    ImageLoaded|contains: '\clr.dll'
  condition:selection
Falsepositives:
  -Unknown
Level: medium