Invoke-Obfuscation Via Use MSHTA - PowerShell Module

Title: Invoke-Obfuscation Via Use MSHTA - PowerShell Module
Status: test
Description:Detects Obfuscated Powershell via use MSHTA in Scripts
References:
  -https://github.com/SigmaHQ/sigma/issues/1009
Author: Nikita Nazarov, oscd.community
Date: 2020-10-08
modified:2023-01-04
Tags:

• -'attack.stealth'
• -'attack.t1027'
• -'attack.execution'
• -'attack.t1059.001'

Logsource:

• product: windows
• category: ps_module
• definition: 0ad03ef1-f21b-4a79-8ce8-e6900c54b65b

Detection:
  selection:
    Payload|contains|all:
      -'set'
      -'&&'
      -'mshta'
      -'vbscript:createobject'
      -'.run'
      -'(window.close)'

  condition:selection
Falsepositives:
  -Unknown
Level: high