sigmahighHunting

Invoke-Obfuscation Via Use MSHTA

Detects Obfuscated Powershell via use MSHTA in Scripts

MITRE ATT&CK

defense-evasionexecution

Detection Query

selection:
  CommandLine|contains|all:
    - set
    - "&&"
    - mshta
    - vbscript:createobject
    - .run
    - (window.close)
condition: selection

Author

Nikita Nazarov, oscd.community

Created

2020-10-08

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/SigmaHQ/sigma/issues/1009

Tags

attack.defense-evasionattack.t1027attack.executionattack.t1059.001

Raw Content

title: Invoke-Obfuscation Via Use MSHTA
id: ac20ae82-8758-4f38-958e-b44a3140ca88
status: test
description: Detects Obfuscated Powershell via use MSHTA in Scripts
references:
    - https://github.com/SigmaHQ/sigma/issues/1009   # (Task31)
author: Nikita Nazarov, oscd.community
date: 2020-10-08
modified: 2022-03-08
tags:
    - attack.defense-evasion
    - attack.t1027
    - attack.execution
    - attack.t1059.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'set'
            - '&&'
            - 'mshta'
            - 'vbscript:createobject'
            - '.run'
            - '(window.close)'
    condition: selection
falsepositives:
    - Unknown
level: high