Possible ShellDispatch.DLL Functionality Misuse (via process_creation)

title: Possible ShellDispatch.DLL Functionality Misuse (via process_creation)
id: eff99ba9-495f-5848-8750-f429e507a294
status: stable
description: This rule detects potential "ShellDispatch.dll" functionality misuse to execute arbitrary binaries via "ShellExecute"
references:
    - https://www.hexacorn.com/blog/2023/06/07/this-lolbin-doesnt-exist/
author: Huntrule Team
date: 2026-03-11
tags:
    - attack.execution
    - attack.stealth
    - attack.defense-evasion
    - attack.t1218.011
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\rundll32.exe'
        - OriginalFileName: 'RUNDLL32.EXE'
    selection_cli:
        CommandLine|contains: 'RunDll_ShellExecuteW'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium