Potential ShellDispatch.DLL Sideloading

Description

Detects potential DLL sideloading of "ShellDispatch.dll"

Query · sigma

selection:
  ImageLoaded|endswith: \ShellDispatch.dll
filter_main_legit_path:
- ImageLoaded|contains|all:
  - :\Users\
  - \AppData\Local\Temp\
- ImageLoaded|contains: :\Windows\Temp\
condition: selection and not 1 of filter_main_*

Known false positives

  • Some installers may trigger some false positives
Raw source Potential ShellDispatch.DLL Sideloading · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Potential ShellDispatch.DLL Sideloading
id: 844f8eb2-610b-42c8-89a4-47596e089663
status: test
description: Detects potential DLL sideloading of "ShellDispatch.dll"
references:
    - https://www.hexacorn.com/blog/2023/06/07/this-lolbin-doesnt-exist/
author: X__Junior (Nextron Systems)
date: 2023-06-20
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    category: image_load
    product: windows
detection:
    selection:
        ImageLoaded|endswith: '\ShellDispatch.dll'
    filter_main_legit_path:
        - ImageLoaded|contains|all:
              - ':\Users\'
              - '\AppData\Local\Temp\'
        - ImageLoaded|contains: ':\Windows\Temp\'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Some installers may trigger some false positives
level: medium

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