Detection rules › Sigma

Invoke-Obfuscation CLIP+ Launcher

Severity
high
Author
Jonathan Cheong, oscd.community
Source
upstream

Detects Obfuscated use of Clip.exe to execute PowerShell

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1059.001 Command and Scripting Interpreter: PowerShell
Defense EvasionT1027 Obfuscated Files or Information

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: selection

or:
CommandLine|contains: '/c'
CommandLine|contains: '/r'
CommandLine|contains: '&&'
CommandLine|contains: -f
CommandLine|contains: 'clipboard]::'
CommandLine|contains: cmd

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
CommandLinematch
  • && corpus 2 (sigma 2)
  • -f corpus 5 (sigma 5)
  • /c corpus 7 (sigma 7)
  • /r corpus 3 (sigma 3)
  • clipboard]::
  • cmd corpus 5 (sigma 5)