sigmamediumHunting

Hidden Powershell in Link File Pattern

Detects events that appear when a user click on a link file with a powershell command in it

MITRE ATT&CK

execution

Detection Query

selection:
  ParentImage: C:\Windows\explorer.exe
  Image: C:\Windows\System32\cmd.exe
  CommandLine|contains|all:
    - powershell
    - .lnk
condition: selection

Author

frack113

Created

2022-02-06

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://www.x86matthew.com/view_post?id=embed_exe_lnk

Tags

attack.executionattack.t1059.001

Raw Content

title: Hidden Powershell in Link File Pattern
id: 30e92f50-bb5a-4884-98b5-d20aa80f3d7a
status: test
description: Detects events that appear when a user click on a link file with a powershell command in it
references:
    - https://www.x86matthew.com/view_post?id=embed_exe_lnk
author: frack113
date: 2022-02-06
tags:
    - attack.execution
    - attack.t1059.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage: C:\Windows\explorer.exe
        Image: C:\Windows\System32\cmd.exe
        CommandLine|contains|all:
            - 'powershell'
            - '.lnk'
    condition: selection
falsepositives:
    - Legitimate commands in .lnk files
level: medium