PowerShell Create Local User


Description

Detects creation of a local user via PowerShell

Query · sigma

selection:
  ScriptBlockText|contains: New-LocalUser
condition: selection

Known false positives

  • Legitimate user creation
Raw source PowerShell Create Local User · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
title: PowerShell Create Local User
id: 243de76f-4725-4f2e-8225-a8a69b15ad61
status: test
description: Detects creation of a local user via PowerShell
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1136.001/T1136.001.md
author: '@ROxPinTeddy'
date: 2020-04-11
modified: 2022-12-25
tags:
    - attack.execution
    - attack.t1059.001
    - attack.persistence
    - attack.t1136.001
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains: 'New-LocalUser'
    condition: selection
falsepositives:
    - Legitimate user creation
level: medium

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