Invoke-Obfuscation VAR++ LAUNCHER OBFUSCATION - PowerShell

Title: Invoke-Obfuscation VAR++ LAUNCHER OBFUSCATION - PowerShell
Status: test
Description:Detects Obfuscated Powershell via VAR++ LAUNCHER
References:
  -https://github.com/SigmaHQ/sigma/issues/1009
Author: Timur Zinniatullin, oscd.community
Date: 2020-10-13
modified:2024-04-05
Tags:

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

Logsource:

• product: windows
• category: ps_script
• definition: Requirements: Script Block Logging must be enabled

Detection:
  selection_4104:
    ScriptBlockText|re: '(?i)&&set.*(\{\d\}){2,}\\"\s+?-f.*&&.*cmd.*/c'
  condition:selection_4104
Falsepositives:
  -Unknown
Level: high