Invoke-Obfuscation Via Use MSHTA - PowerShell

 1title: Invoke-Obfuscation Via Use MSHTA - PowerShell
 2id: e55a5195-4724-480e-a77e-3ebe64bd3759
 3status: test
 4description: Detects Obfuscated Powershell via use MSHTA in Scripts
 5references:
 6    - https://github.com/SigmaHQ/sigma/issues/1009 # (Task31)
 7author: Nikita Nazarov, oscd.community
 8date: 2020-10-08
 9modified: 2022-11-29
10tags:
11    - attack.defense-evasion
12    - attack.t1027
13    - attack.execution
14    - attack.t1059.001
15logsource:
16    product: windows
17    category: ps_script
18    definition: 'Requirements: Script Block Logging must be enabled'
19detection:
20    selection_4104:
21        ScriptBlockText|contains|all:
22            - 'set'
23            - '&&'
24            - 'mshta'
25            - 'vbscript:createobject'
26            - '.run'
27            - '(window.close)'
28    condition: selection_4104
29falsepositives:
30    - Unknown
31level: high

References

• Invoke-Obfuscation · Issue #1009 · SigmaHQ/sigma

  

  Summary Tool: Invoke-Obfuscation — PowerShell command and script obfuscation framework Author: Daniel Bohannon, @danielhbohannon Type: Offensive tool, threat simulation Materials: The Invoke-Obfusc...

  
  Read More

Related rules

• ConvertTo-SecureString Cmdlet Usage Via CommandLine
• Invoke-Obfuscation CLIP+ Launcher
• Invoke-Obfuscation CLIP+ Launcher - PowerShell
• Invoke-Obfuscation CLIP+ Launcher - PowerShell Module
• Invoke-Obfuscation CLIP+ Launcher - Security