Suspicious Recursive Takeown — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: medium. Source dates: 2022-01-30 / 2022-11-21.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 720dc79be6874ffc2d88d5c01995ec49b25e28f03aa479aa8d79d7989664adb4

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: Suspicious Recursive Takeown
id: 554601fb-9b71-4bcc-abf4-21a611be4fde
status: test
description: Adversaries can interact with the DACLs using built-in Windows commands takeown which can grant adversaries higher permissions on specific files and folders
references:
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/takeown
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1222.001/T1222.001.md#atomic-test-1---take-ownership-using-takeown-utility
author: frack113
date: 2022-01-30
modified: 2022-11-21
tags:
    - attack.defense-impairment
    - attack.t1222.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\takeown.exe'
        CommandLine|contains|all:
            - '/f '
            - '/r'
    condition: selection
falsepositives:
    - Scripts created by developers and admins
    - Administrative activity
level: medium

Original YAML and metadata in JSON

False positives

• Scripts created by developers and admins
• Administrative activity

Source references

• https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/takeown
• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1222.001/T1222.001.md#atomic-test-1---take-ownership-using-takeown-utility