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WDACConfig

Violet edited this page Apr 18, 2024 · 51 revisions

WDACConfig (Windows Defender Application Control) Module

WDACConfig is an advanced PowerShell module designed with the aim of automating Application and File whitelisting in Windows using Windows Defender Application Control (App Control for Business Policies). You can always find its source code on GitHub and Install it from PowerShell Gallery.

This page is also available on my website.


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Requirements

  • PowerShell Core latest version

  • Windows 11 latest version

  • Administrator Privileges

  • Internet Connection (for periodic update checks)


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Features

  • Uses the official documented methods of the ConfigCI module.

  • Checks for new version periodically and updates itself automatically when necessary.

    • Update check can be skipped with -SkipVersionCheck.
  • Actively trying to design it with Microsoft Security Development Lifecycle (SDL) guidelines in mind.

  • The module goes through Extended Validation before each update is released to make sure everything works perfectly.

  • The module can be used for managing both local systems and systems in Azure VMs.

  • Use -Verbose common parameter with each cmdlet of the WDACConfig module to see extra details and what's happening under the hood.


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Install The Module

Install-Module -Name 'WDACConfig' -Scope 'AllUsers' -Force

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WDACConfig Module's Table of Content

Cmdlet Guide Usage PowerShell Console Help
New-WDACConfig Mainly for creating and deploying WDAC policies Get-Help New-WDACConfig
New-SupplementalWDACConfig To create and deploy Supplemental policies Get-Help New-SupplementalWDACConfig
Remove-WDACConfig To remove deployed WDAC policies Get-Help Remove-WDACConfig
Edit-WDACConfig To edit deployed unsigned WDAC policies Get-Help Edit-WDACConfig
Edit-SignedWDACConfig To edit deployed signed WDAC policies Get-Help Edit-SignedWDACConfig
Deploy-SignedWDACConfig To sign and deploy WDAC policies Get-Help Deploy-SignedWDACConfig
Confirm-WDACConfig To confirm deployment and check the status of WDAC policies Get-Help Confirm-WDACConfig
New-DenyWDACConfig To create a deny mode WDAC policy Get-Help New-DenyWDACConfig
Set-CommonWDACConfig To add or edit user configurations for common WDACConfig parameters Get-Help Set-CommonWDACConfig
New-KernelModeWDACConfig To create a Strict Kernel mode WDAC policy for total BYOVD protection Get-Help New-KernelModeWDACConfig
Get-CommonWDACConfig To display or fetch user configurations for common WDACConfig parameters Get-Help Get-CommonWDACConfig
Invoke-WDACSimulation To simulate a WDAC policy deployment quickly Get-Help Invoke-WDACSimulation
Remove-CommonWDACConfig To remove user configurations for common WDACConfig parameters Get-Help Remove-CommonWDACConfig
Assert-WDACConfigIntegrity To ascertain that the files in your local WDACConfig folder are identical to the ones in the cloud Get-Help Assert-WDACConfigIntegrity
Build-WDACCertificate To create proper code signing certificates for WDAC policy signing Get-Help Build-WDACCertificate
Test-CiPolicy Tests a Code Integrity (WDAC) Policy XML file against the Schema and shows the signers in a signed .CIP files Get-Help Test-CiPolicy
Get-CiFileHashes Calculates the Authenticode hash and first page hash of the PEs with SHA1 and SHA256 algorithms Get-Help Get-CiFileHashes
ConvertTo-WDACPolicy Multi-Purpose & Powerful functionalities such as converting local and MDE logs to App Control Policies Get-Help ConvertTo-WDACPolicy

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User Configurations Directory

The module stores user configurations and all of the outputs only in the following directory:

C:\Program Files\WDACConfig

It's an Admin-protected path that provides security against non-elevated users and processes.


The Temporary Files Are Stored in the Following Directory

C:\Program Files\WDACConfig\StagingArea

Each cmdlet of the module creates a subdirectory in the StagingArea to store its temporary files. The subdirectory is named after the cmdlet's name. At the end of the cmdlet's execution, the temporary subdirectory is deleted, unless the -Debug parameter is used.


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About Automatic Parameters

A parameter with an Automatic value of True in the description means that the module will use its default value set by the Set-CommonWDACConfig cmdlet. This simplifies the process and avoids redundancy. However, if an Automatic parameter has no value in User Configurations and you do not specify one in the command line, you will encounter an error requesting a value. Specifying a value for an Automatic parameter in the command line supersedes its default value in User Configurations, so the module will disregard the value of that parameter in the User Configurations file.


The Logic Behind The -SignToolPath Parameter in the Module

  1. If Windows SDK Signing Tools for Desktop Apps components is installed in the default location C:\Program Files (x86)\Windows Kits, then specifying -SignToolPath parameter isn't necessary as the SignTool.exe will be detected automatically.

  2. If Windows SDK Signing Tools for Desktop Apps components is not installed in the default location or you want to manually browse for the signtool.exe, then make sure you either specify its path using Set-CommonWDACConfig -SignToolPath or use the -SignToolPath parameter.

  3. If SignTool.exe path is available in user configurations then it will be automatically used.

  4. Specifying -SignToolPath parameter explicitly on the command line takes priority over auto detection and value in the user configurations.

  5. If SignTool.exe cannot be auto-detected and the user didn't specify it on the command line, you will receive a prompt to authorize the automatic download of the most recent SignTool.exe version from the official Microsoft servers. Upon confirmation, it will be saved in your user configurations and utilized by the cmdlet.


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Video Guides


MDE AH Demo

Create and Deploy Signed WDAC Windows Defender Policy YouTube Guide


WDAC policy for Fully Managed device - Variant 1 YouTube Guide


WDAC policy for Fully managed device - Variant 2 YouTube Guide


WDAC policy for Fully managed device - Variant 3 YouTube Guide


WDAC policy for Fully managed device - Variant 4 YouTube Guide


WDAC policy for Lightly managed device YouTube Guide


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Feedback and Feature Request

If there are any feedback or feature requests regarding this module, please open a new discussion/issue on GitHub.








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