Possible Provlaunch.EXE Binary Proxy Execution Misuse (via process_creation)

title: Possible Provlaunch.EXE Binary Proxy Execution Misuse (via process_creation)
id: a0099167-2733-5ca0-98e3-9c33432ca055
status: stable
description: This rule detects child processes of "provlaunch.exe" which might indicate potential misuse to proxy execution.
references:
    - https://attack.mitre.org/techniques/T1218/
    - https://lolbas-project.github.io/lolbas/Binaries/Provlaunch/
    - https://twitter.com/0gtweet/status/1674399582162153472
author: Huntrule Team
date: 2026-03-29
tags:
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith: '\provlaunch.exe'
    filter_main_covered_children:
        - Image|endswith:
              - '\calc.exe'
              - '\cmd.exe'
              - '\cscript.exe'
              - '\mshta.exe'
              - '\notepad.exe'
              - '\powershell.exe'
              - '\pwsh.exe'
              - '\regsvr32.exe'
              - '\rundll32.exe'
              - '\wscript.exe'
        - Image|contains:
              - ':\PerfLogs\'
              - ':\Temp\'
              - ':\Users\Public\'
              - '\AppData\Temp\'
              - '\Windows\System32\Tasks\'
              - '\Windows\Tasks\'
              - '\Windows\Temp\'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium