Possible Local Accounts Enumeration (via process_creation)

title: Possible Local Accounts Enumeration (via process_creation)
id: 21e7b8e0-cdc8-5618-a706-289b780f810f
status: stable
description: This rule detects local accounts, System Owner/User discovery using operating systems utilities
references:
    - https://attack.mitre.org/techniques/T1087/001/
    - https://attack.mitre.org/techniques/T1033/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1033/T1033.md
author: Huntrule Team
date: 2026-07-25
tags:
    - attack.discovery
    - attack.t1033
    - attack.t1087.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_other_img:
        - Image|endswith:
              - '\whoami.exe'
              - '\quser.exe'
              - '\qwinsta.exe'
        - OriginalFileName:
              - 'whoami.exe'
              - 'quser.exe'
              - 'qwinsta.exe'
    selection_other_wmi:
        Image|endswith: '\wmic.exe'
        CommandLine|contains|all:
            - 'useraccount'
            - 'get'
    selection_other_cmdkey:
        Image|endswith: '\cmdkey.exe'
        CommandLine|contains: ' /l'
    selection_cmd:
        Image|endswith: '\cmd.exe'
        CommandLine|contains|all:
            - ' /c'
            - 'dir '
            - '\Users\'
    filter_cmd:
        CommandLine|contains: ' rmdir '
    selection_net:
        Image|endswith:
            - '\net.exe'
            - '\net1.exe'
        CommandLine|contains: 'user'
    filter_net:
        CommandLine|contains:
            - '/domain'
            - '/add'
            - '/delete'
            - '/active'
            - '/expires'
            - '/passwordreq'
            - '/scriptpath'
            - '/times'
            - '/workstations'
    condition: (selection_cmd and not filter_cmd) or (selection_net and not filter_net) or 1 of selection_other_*
falsepositives:
    - Unknown
level: low
simulation:
    - type: atomic-red-team
      name: WMI Reconnaissance Users
      technique: T1047
      atomic_guid: c107778c-dcf5-47c5-af2e-1d058a3df3ea
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_susp_local_system_owner_account_discovery/info.yml