Creation Of A Local User Account

calendar Aug 12, 2024 · attack.t1136.001 attack.persistence  ·
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Detects the creation of a new user account. Such accounts may be used for persistence that do not require persistent remote access tools to be deployed on the system.

Sigma rule (View on GitHub)

 1title: Creation Of A Local User Account
 2id: 51719bf5-e4fd-4e44-8ba8-b830e7ac0731
 3status: test
 4description: Detects the creation of a new user account. Such accounts may be used for persistence that do not require persistent remote access tools to be deployed on the system.
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1136.001/T1136.001.md
 7    - https://ss64.com/osx/sysadminctl.html
 8author: Alejandro Ortuno, oscd.community
 9date: 2020-10-06
10modified: 2023-02-18
11tags:
12    - attack.t1136.001
13    - attack.persistence
14logsource:
15    category: process_creation
16    product: macos
17detection:
18    selection_dscl:
19        Image|endswith: '/dscl'
20        CommandLine|contains: 'create'
21    selection_sysadminctl:
22        Image|endswith: '/sysadminctl'
23        CommandLine|contains: 'addUser'
24    condition: 1 of selection_*
25falsepositives:
26    - Legitimate administration activities
27level: low

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