title: Hidden Local User Creation
author: Christian Burkard
date: 2021/05/03
description: Detects the creation of a local hidden user account which should not
    happen for event ID 4720.
detection:
    SELECTION_1:
        EventID: 4720
    SELECTION_2:
        TargetUserName: '*$'
    condition: (SELECTION_1 and SELECTION_2)
falsepositives:
- unknown
fields:
- EventCode
- AccountName
id: 7b449a5e-1db5-4dd0-a2dc-4e3a67282538
level: high
logsource:
    product: windows
    service: security
references:
- https://twitter.com/SBousseaden/status/1387743867663958021
status: experimental
tags:
- attack.persistence
- attack.t1136.001
yml_filename: win_hidden_user_creation.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/builtin

