title: WMI Spawning Windows PowerShell
id: 692f0bec-83ba-4d04-af7e-e884a96059b6
status: experimental
description: Detects WMI spawning PowerShell
references:
    - https://github.com/Neo23x0/sigma/blob/master/rules/windows/process_creation/win_shell_spawn_susp_program.yml
    - https://any.run/report/68bc255f9b0db6a0d30a8f2dadfbee3256acfe12497bf93943bc1eab0735e45e/a2385d6f-34f7-403c-90d3-b1f9d2a90a5e
author: Markus Neis / @Karneades
date: 2019/04/03
modified: 2021/02/24
tags:
    - attack.execution
    - attack.t1047
    - attack.t1059.001
    - attack.defense_evasion # an old one
    - attack.t1064      # an old one
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith:
            - '\wmiprvse.exe'
        Image|endswith:
            - '\powershell.exe'
    filter_null1:
        CommandLine: 'null'
    filter_null2:  # some backends need the null value in a separate expression
        CommandLine: null
    condition: selection and not filter_null1 and not filter_null2
falsepositives:
    - AppvClient
    - CCM
level: high