Remote Thread Creation Via PowerShell In Uncommon Target — Sigma Rule

Rule metadata and linked tags

Author: Florian Roth (Nextron Systems). Source status: test; severity: medium. Source dates: 2018-06-25 / 2023-11-10.

{
  "product": "windows",
  "category": "create_remote_thread"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 2dfc2c8d7cf742a116384e70500d520a7d60ba49ba2a6096d6d77aa77902e1ae

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Remote Thread Creation Via PowerShell In Uncommon Target
id: 99b97608-3e21-4bfe-8217-2a127c396a0e
related:
    - id: eeb2e3dc-c1f4-40dd-9bd5-149ee465ad50
      type: similar
status: test
description: Detects the creation of a remote thread from a Powershell process in an uncommon target process
references:
    - https://www.fireeye.com/blog/threat-research/2018/06/bring-your-own-land-novel-red-teaming-technique.html
author: Florian Roth (Nextron Systems)
date: 2018-06-25
modified: 2023-11-10
tags:
    - attack.execution
    - attack.stealth
    - attack.t1218.011
    - attack.t1059.001
logsource:
    product: windows
    category: create_remote_thread
detection:
    selection:
        SourceImage|endswith:
            - '\powershell.exe'
            - '\pwsh.exe'
        TargetImage|endswith:
            # Note: Please add additional potential interesting targets to increase coverage
            - '\rundll32.exe'
            - '\regsvr32.exe'
    condition: selection
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://www.fireeye.com/blog/threat-research/2018/06/bring-your-own-land-novel-red-teaming-technique.html