Detection rules › Sigma

Suspicious Recursive Takeown

Status
test
Severity
medium
Log source
product windows, category process_creation
Author
frack113
Source
github.com/SigmaHQ/sigma

Adversaries can interact with the DACLs using built-in Windows commands takeown which can grant adversaries higher permissions on specific files and folders

MITRE ATT&CK coverage

Event coverage

Rule body yaml

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

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    Image|endswith: '\takeown.exe'
    CommandLine|contains|all:
        - '/f '
        - '/r'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
CommandLinematch
  • /f corpus 3 (sigma 3)
  • /r corpus 3 (sigma 3)
Imageends_with
  • \takeown.exe corpus 2 (sigma 2)