sigmahighHunting

Run PowerShell Script from ADS

Detects PowerShell script execution from Alternate Data Stream (ADS)

MITRE ATT&CK

defense-evasion

Detection Query

selection:
  ParentImage|endswith:
    - \powershell.exe
    - \pwsh.exe
  Image|endswith:
    - \powershell.exe
    - \pwsh.exe
  CommandLine|contains|all:
    - Get-Content
    - -Stream
condition: selection

Author

Sergey Soldatov, Kaspersky Lab, oscd.community

Created

2019-10-30

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/p0shkatz/Get-ADS/blob/1c3a3562e713c254edce1995a7d9879c687c7473/Get-ADS.ps1

Tags

attack.defense-evasionattack.t1564.004

Raw Content

title: Run PowerShell Script from ADS
id: 45a594aa-1fbd-4972-a809-ff5a99dd81b8
status: test
description: Detects PowerShell script execution from Alternate Data Stream (ADS)
references:
    - https://github.com/p0shkatz/Get-ADS/blob/1c3a3562e713c254edce1995a7d9879c687c7473/Get-ADS.ps1
author: Sergey Soldatov, Kaspersky Lab, oscd.community
date: 2019-10-30
modified: 2022-07-14
tags:
    - attack.defense-evasion
    - attack.t1564.004
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith:
            - '\powershell.exe'
            - '\pwsh.exe'
        Image|endswith:
            - '\powershell.exe'
            - '\pwsh.exe'
        CommandLine|contains|all:
            - 'Get-Content'
            - '-Stream'
    condition: selection
falsepositives:
    - Unknown
level: high