Possible New Process Created Through Taskmgr.EXE (via process_creation)

title: Possible New Process Created Through Taskmgr.EXE (via process_creation)
id: cb4927a7-5c3b-5cb4-b733-d79382a10864
status: stable
description: This rule detects the creation of a process via the Windows task manager. This might be an attempt to bypass UAC
references:
    - https://attack.mitre.org/techniques/T1036/
    - https://twitter.com/ReneFreingruber/status/1172244989335810049
author: Huntrule Team
date: 2026-06-12
tags:
    - attack.stealth
    - attack.t1036
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith: '\taskmgr.exe'
    filter_main_generic:
        Image|endswith:
            - ':\Windows\System32\mmc.exe'
            - ':\Windows\System32\resmon.exe'
            - ':\Windows\System32\Taskmgr.exe'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: low