Ultimate WDAC Bypass List

A centralized resource for previously documented WDAC/Device Guard/UMCI bypass techniques as well for building/managing/testing WDAC policies

• Note: WDAC (Windows Defender Application Control) has been rebranded by Microsoft as "Application Control" or "Application Control for Business"

*Many of the LOLBINs are included on the Applications that can bypass WDAC List formerly called the "Microsoft Recommended Block Rules List"

• Pro Tip: If applying the Block Rules policy, don't forget to remove the first two file rules: ID_ALLOW_A_1 and ID_ALLOW_A_2

*This repository was inspired by Oddvar Moe's Ultimate AppLocker Bypass List

*As always, this is a work in progress...

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Applications that can bypass WDAC - "LOLBIN" Write-Ups

addinprocess.exe

• By James Forshaw (@tiraniddo)
• DG on Windows 10 S: Executing Arbitrary Code
  • https://www.tiraniddo.dev/2017/07/dg-on-windows-10-s-executing-arbitrary.html

addinprocess32.exe

• By James Forshaw (@tiraniddo)
• DG on Windows 10 S: Executing Arbitrary Code
  • https://www.tiraniddo.dev/2017/07/dg-on-windows-10-s-executing-arbitrary.html

addinutil.exe

• By Unknown (Documented by @McKinleyMike and @TheLatteri)
• Insecure Deserialization in AddinUtil.exe
  • https://www.blue-prints.blog/content/blog/posts/lolbin/addinutil-lolbas.html

aspnet_compiler.exe

• By cpl (@cpl3h)
• The Curious Case of Aspnet_Compiler.exe
  • https://ijustwannared.team/2020/08/01/the-curious-case-of-aspnet_compiler-exe/

bginfo.exe

• By Oddvar Moe (@Oddvarmoe)
• Bypassing Application Whitelisting with BGInfo
  • https://msitpros.com/?p=3831

cdb.exe

• By Matt Graeber (@mattifestation)
• Bypassing Application Whitelisting by using WinDbg/CDB as a Shellcode Runner
  • http://www.exploit-monday.com/2016/08/windbg-cdb-shellcode-runner.html

csi.exe

• By Casey Smith (@subTee)
• Application Whitelisting Bypass - CSI.EXE C# Scripting
  • https://web.archive.org/web/20161008143428/http://subt0x10.blogspot.com/2016/09/application-whitelisting-bypass-csiexe.html

dbghost.exe

• By Casey Smith (@subTee)
• dbghost.exe - Ghost And The Darkness
  • https://web.archive.org/web/20170926164017/http://subt0x10.blogspot.com/2017/09/dbghostexe-ghost-in-darkness.html

dbgsrv.exe

• By Casey Smith (@subTee), Ross Wolf (@rw_access)
• How to Bypass WDAC with dbgsrv.exe
  • https://fortynorthsecurity.com/blog/how-to-bypass-wdac-with-dbgsrv-exe/
• Fantastic Red-Team Attacks and How to Find Them
  • https://i.blackhat.com/USA-19/Thursday/us-19-Smith-Fantastic-Red-Team-Attacks-And-How-To-Find-Them.pdf

dnx.exe

• By Matt Nelson (@enigma0x3)
• BYPASSING APPLICATION WHITELISTING BY USING DNX.EXE
  • https://enigma0x3.net/2016/11/17/bypassing-application-whitelisting-by-using-dnx-exe/

dotnet.exe

• By Jimmy Bayne (@bohops)
• DotNet Core: A Vector For AWL Bypass & Defense Evasion
  • https://bohops.com/2019/08/19/dotnet-core-a-vector-for-awl-bypass-defense-evasion/

fsi.exe

• By Nick Tyrer (@NickTyrer) [Write-up: Jimmy Bayne (@bohops)]
• GitHub Gist: fsi.exe inline execution
  • https://gist.github.com/NickTyrer/51eb8c774a909634fa69b4d06fc79ae1
  • https://twitter.com/NickTyrer/status/904273264385589248
• Exploring the WDAC Microsoft Recommended Block Rules (Part II): Wfc.exe, Fsi.exe, and FsiAnyCpu.exe
  • https://bohops.com/2020/11/02/exploring-the-wdac-microsoft-recommended-block-rules-part-ii-wfc-fsi/

fsiAnyCpu.exe

• By Nick Tyrer (@NickTyrer) via fsi.exe inline execution [Write-up: Jimmy Bayne (@bohops)]
• GitHub Gist: fsi.exe inline execution
  • https://gist.github.com/NickTyrer/51eb8c774a909634fa69b4d06fc79ae1
  • https://twitter.com/bohops/status/1319096336441090050
• Exploring the WDAC Microsoft Recommended Block Rules (Part II): Wfc.exe, Fsi.exe, and FsiAnyCpu.exe
  • https://bohops.com/2020/11/02/exploring-the-wdac-microsoft-recommended-block-rules-part-ii-wfc-fsi/

infdefaultinstall.exe

• By Kyle Hanslovan (@KyleHanslovan), Chris Bisnett (@chrisbisnett)
• Evading Autoruns - DerbyCon 7.0
  • https://github.com/huntresslabs/evading-autoruns
• RE: Evading Autoruns PoCs on Windows 10
  • https://medium.com/@KyleHanslovan/re-evading-autoruns-pocs-on-windows-10-dd810d7e8a3f

InstallUtil.exe

• By James Forshaw (@tiraniddo)
• DG on Windows 10 S: Abusing InstallUtil
  • https://www.tiraniddo.dev/2017/08/dg-on-windows-10-s-abusing-installutil.html

IntuneWindowsAgent.exe (Microsoft.Management.Services.IntuneWindowsAgent.exe)

• By Kim Oppalfens (@TheWMIGuy)
• Intune Windows Agent Bypass Explanation
  • https://github.com/bohops/UltimateWDACBypassList/issues/1

kill.exe

• By @hyp3rlinx
• Microsoft Process Kill Utility "kill.exe" - SEH Buffer Overflow
  • http://hyp3rlinx.altervista.org/advisories/MS-KILL-UTILITY-BUFFER-OVERFLOW.txt
  • https://twitter.com/bohops/status/1324563760967753730

microsoft.Workflow.Compiler.exe

• By Matt Graeber (@mattifestation)
• Arbitrary, Unsigned Code Execution Vector in Microsoft.Workflow.Compiler.exe
  • https://posts.specterops.io/arbitrary-unsigned-code-execution-vector-in-microsoft-workflow-compiler-exe-3d9294bc5efb

msbuild.exe

• By Casey Smith (@subTee)
• Bypassing Application Whitelisting using MSBuild.exe - Device Guard Example and Mitigations
  • https://web.archive.org/web/20160920161634/http://subt0x10.blogspot.com/2016/09/bypassing-application-whitelisting.html

mshta.exe

• By Unknown (Documented by @conscioushacker)
• Application Whitelisting Bypass: mshta.exe
  • https://web.archive.org/web/20171118145940/http://blog.conscioushacker.io/index.php/2017/11/17/application-whitelisting-bypass-mshta-exe/

powershellcustomhost.exe

• By Lasse Trolle Borup (@TrolleBorup)
• A simple Device Guard bypass
  • https://danishcyberdefence.dk/blog/device-guard-powershellcustomhost

rcsi.exe

• By Matt Nelson (@enigma0x3)
• BYPASSING APPLICATION WHITELISTING BY USING RCSI.EXE
  • https://enigma0x3.net/2016/11/21/bypassing-application-whitelisting-by-using-rcsi-exe/

runscripthelper.exe

• By Matt Graeber (@mattifestation)
• Bypassing Application Whitelisting with runscripthelper.exe
  • https://posts.specterops.io/bypassing-application-whitelisting-with-runscripthelper-exe-1906923658fc

texttransform.exe

• By Unknown
• TextTransformer - Tool Use Case [Documented by Casey Smith (@_subTee)]
  • https://github.com/secdev02/TextTransformer
• TextTransform Shellcode Injection Template [Documented by Chris Sphen (@ConsciousHacker)]
  • https://gist.github.com/ConsciousHacker/40dfd14b9ecefec49803c509712346a9
• Placeholder reference (coming soon)

visualuiaverifynative.exe

• By Lee Christensen (@tifkin_) [Write-up: Jimmy Bayne (@bohops)]
• Exploring the WDAC Microsoft Recommended Block Rules: VisualUiaVerifyNative
  • https://bohops.com/2020/10/15/exploring-the-wdac-microsoft-recommended-block-rules-visualuiaverifynative/

wfc.exe

• Tipped by MSRC and Matt Graeber (@mattifestation) [Write-up: Jimmy Bayne (@bohops)]
• Exploring the WDAC Microsoft Recommended Block Rules (Part II): Wfc.exe, Fsi.exe, and FsiAnyCpu.exe
• https://bohops.com/2020/11/02/exploring-the-wdac-microsoft-recommended-block-rules-part-ii-wfc-fsi/

windbg.exe

• By Matt Graeber (@mattifestation)
• Bypassing Application Whitelisting by using WinDbg/CDB as a Shellcode Runner
  • http://www.exploit-monday.com/2016/08/windbg-cdb-shellcode-runner.html