Execution DLL of Choice Using WAB.EXE

Description

This rule detects that the path to the DLL written in the registry is different from the default one. Launched WAB.exe tries to load the DLL from Registry.

Query · sigma

selection:
  TargetObject|endswith: \Software\Microsoft\WAB\DLLPath
filter:
  Details: '%CommonProgramFiles%\System\wab32.dll'
condition: selection and not filter

Known false positives

  • Unknown
Raw source Execution DLL of Choice Using WAB.EXE · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Execution DLL of Choice Using WAB.EXE
id: fc014922-5def-4da9-a0fc-28c973f41bfb
status: test
description: This rule detects that the path to the DLL written in the registry is different from the default one. Launched WAB.exe tries to load the DLL from Registry.
references:
    - https://github.com/LOLBAS-Project/LOLBAS/blob/8283d8d91552213ded165fd36deb6cb9534cb443/yml/OSBinaries/Wab.yml
    - https://twitter.com/Hexacorn/status/991447379864932352
    - http://www.hexacorn.com/blog/2018/05/01/wab-exe-as-a-lolbin/
author: oscd.community, Natalia Shornikova
date: 2020-10-13
modified: 2023-08-17
tags:
    - attack.stealth
    - attack.t1218
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|endswith: '\Software\Microsoft\WAB\DLLPath'
    filter:
        Details: '%CommonProgramFiles%\System\wab32.dll'
    condition: selection and not filter
falsepositives:
    - Unknown
level: high

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