blue-team-tools/rules/windows/powershell/powershell_invoke_obfuscation_clip+.yml

title: Invoke-Obfuscation CLIP+ Launcher
id: 73e67340-0d25-11eb-adc1-0242ac120002
description: Detects Obfuscated use of Clip.exe to execute PowerShell
status: experimental
author: Jonathan Cheong, oscd.community
date: 2020/10/13
references:
     - https://github.com/Neo23x0/sigma/issues/1009 #(Task 26)
tags:
    - attack.defense_evasion
    - attack.t1027
    - attack.execution
    - attack.t1059.001
logsource:
    product: windows
    service: powershell
detection:
    selection_1:
        EventID: 4104
    selection_2:
        - ScriptBlockText|re: '.*cmd.{0,5}(?:\/c|\/r).+clip(?:\.exe)?.{0,4}&&.+clipboard]::\(\s\\\"\{\d\}.+\-f.+\"'
    selection_3:
        EventID: 4103
    selection_4:
        - Payload|re: '.*cmd.{0,5}(?:\/c|\/r).+clip(?:\.exe)?.{0,4}&&.+clipboard]::\(\s\\\"\{\d\}.+\-f.+\"'
    condition: ( selection_1 and selection_2 ) or ( selection_3 and selection_4 )
falsepositives:
    - Unknown
level: high