Disable Microsoft Security WFP callout driver

Overview

About this script

This script improves your privacy on Windows.

These changes use Windows system commands to update your settings.

This script disables the Microsoft Security WFP callout driver and its associated files.

Microsoft refers to this component as Microsoft Security WFP Callout Driver 1. This is a kernel-mode driver 1. Windows uses this driver to monitor and control network traffic for security purposes 2.

It is part of the Windows Filtering Platform (WFP). WFP provides a framework for building network filtering applications 2. It is used by built-in Defender Firewall to filter network packets 2. It works on TCP/IP communication using TCP/IP Protocol Driver (Tcpip) 1.

The driver is a callout driver. This means that it processes network data beyond simple filtering 3. It performs deep inspections, modifies packet or stream data, and logs network activity 3. This helps manage and enforce security policies for network traffic 4.

Disabling this driver may enhance privacy by preventing the system from performing detailed network data inspections and logging. Additionally, the script may slightly boost system performance and shorten boot times by stopping the driver from loading at startup.

On On modern Windows versions, this driver is either missing entirely or is stopped and set to Manual by default 1. This means it does not actively run unless specifically triggered.

However, disabling this driver poses security risks:

• Reduced threat detection: Your system may become more vulnerable to network-based attacks.
• Reduced firewall effectiveness: The Defender Firewall may not work as effectively to monitor and block malicious network traffic.
• Potential system instability: Other security features or applications that depend on this driver may not function properly.

Caution

Disabling this driver may reduce your system's network security. Consider having alternative security measures in place.

Technical Details

This script:

• Disables its service named MsSecWfp 1.
• Removes the driver file.
  • This driver file is located at %SYSTEMROOT%\System32\drivers\mssecwfp.sys 1 5.
  • This file exists on Windows 10 Pro (≥ 22H2) and Windows 11 Pro ≥ 22H2 but not on Windows 11 21H2.
• Removes its associated library.
  • This library is located at %SYSTEMROOT%\System32\mssecwfpu.dll [6].
  • It is named Microsoft Security Network Isolation WFP Library [6].

While some sources may mention MsSecFltWfp.sys, this file has not been found in any version of Windows.

OS Version	Status	Start type
Windows 10 (≥ 22H2)	🔴 Stopped	Manual
Windows 11 (21H2)	🟡 Missing	N/A
Windows 11 (≥ 22H2)	🔴 Stopped	Manual

[6]: https://archive.ph/2024.10.09-120635/https://x.com/XenoPanther/status/1603106223129526273 "Xeno on X: "Changes between 25262 and 25267: mssecwfpu.dll (Microsoft Security Network Isolation WFP Library) has been added to System32. wslg.exe has been removed now exists in the SystemApps folder -" / X | x.com"

This script uses Batch (batchfile) scripting language.

Not Advised

This script should only be used by advanced users. This script is not recommended for daily use as it breaks important functionality. Do not run it without having backups and system snapshots.

Implementation Details

• Language: batch

• Required Privileges: Administrator rights

• Compatibility: Windows only

• Reversibility: Can be undone using provided revert script

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Disable Defender Firewall

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Privacy over security

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Apply now

Choose one of three ways to apply:

1. Automatically via privacy.sexy: The easiest and safest option.
2. Manually by downloading: Requires downloading a file.
3. Manually by copying: Advanced flexibility.

Alternative 1. Apply with Privacy.sexy

privacy.sexy is free and open-source application that lets securely apply this action easily.

Open privacy.sexy

You can fully restore this action (revert back to the original behavior) using the application.

privacy.sexy instructions

1. Open or download the desktop application
2. Search for the script name: Disable Microsoft Security WFP callout driver.
3. Check the script by clicking on the checkbox.
4. Click on Run button at the bottom of the page.

Alternative 2. Download

Irreversible Changes

This script is irreversible, meaning there is no straightforward method to restore changes once applied. Exercise caution before running, restoring it may not be possible.

1. Download the script file by clicking on the button below:

   Download script

2. Run the script file by clicking on it.

Download revert script

This file restores your system to its original state, before this script is applied.

Download restore script

Alternative 3. Copy

This is for advanced users. Consider automatically applying or downloading the script for simpler way.

1. Open Command Prompt as administrator.

HELP: Step-by-step guide

1. Click on Start menu

   Windows 11

   

   Windows 10

   

2. Type cmd

   Windows 11

   

   Windows 10

   

3. Right click on Command Prompt select Run as administrator

   Windows 11

   

   Windows 10

   

4. Click on Yes to run Command Prompt

   Windows 11

   

   Windows 10

   

---

Windows 11

Windows 10

2. Copy the following code:

Code to apply changes

:: Disable service(s): `MsSecWfp`
PowerShell -ExecutionPolicy Unrestricted -Command "$serviceName = 'MsSecWfp'; Write-Host "^""Disabling service: `"^""$serviceName`"^""."^""; <# -- 1. Skip if service does not exist #>; $service = Get-Service -Name $serviceName -ErrorAction SilentlyContinue; if(!$service) { Write-Host "^""Service `"^""$serviceName`"^"" could not be not found, no need to disable it."^""; Exit 0; }; <# -- 2. Stop if running #>; if ($service.Status -eq [System.ServiceProcess.ServiceControllerStatus]::Running) { Write-Host "^""`"^""$serviceName`"^"" is running, stopping it."^""; try { Stop-Service -Name "^""$serviceName"^"" -Force -ErrorAction Stop; Write-Host "^""Stopped `"^""$serviceName`"^"" successfully."^""; } catch { Write-Warning "^""Could not stop `"^""$serviceName`"^"", it will be stopped after reboot: $_"^""; }; } else { Write-Host "^""`"^""$serviceName`"^"" is not running, no need to stop."^""; }; <# -- 3. Skip if already disabled #>; $startupType = $service.StartType <# Does not work before .NET 4.6.1 #>; if (!$startupType) { $startupType = (Get-WmiObject -Query "^""Select StartMode From Win32_Service Where Name='$serviceName'"^"" -ErrorAction Ignore).StartMode; if(!$startupType) { $startupType = (Get-WmiObject -Class Win32_Service -Property StartMode -Filter "^""Name='$serviceName'"^"" -ErrorAction Ignore).StartMode; }; }; if ($startupType -eq 'Disabled') { Write-Host "^""$serviceName is already disabled, no further action is needed"^""; Exit 0; }; <# -- 4. Disable service #>; try { Set-Service -Name "^""$serviceName"^"" -StartupType Disabled -Confirm:$false -ErrorAction Stop; Write-Host "^""Disabled `"^""$serviceName`"^"" successfully."^""; } catch { Write-Error "^""Could not disable `"^""$serviceName`"^"": $_"^""; }"
:: Soft delete files matching pattern: "%SYSTEMROOT%\System32\drivers\mssecwfp.sys" with additional permissions 
PowerShell -ExecutionPolicy Unrestricted -Command "$pathGlobPattern = "^""%SYSTEMROOT%\System32\drivers\mssecwfp.sys"^""; $expandedPath = [System.Environment]::ExpandEnvironmentVariables($pathGlobPattern); Write-Host "^""Searching for items matching pattern: `"^""$($expandedPath)`"^""."^""; $renamedCount   = 0; $skippedCount   = 0; $failedCount    = 0; Add-Type -TypeDefinition "^""using System;`r`nusing System.Runtime.InteropServices;`r`npublic class Privileges {`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,`r`n        ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);`r`n    [DllImport(`"^""advapi32.dll`"^"", SetLastError = true)]`r`n    internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);`r`n    [StructLayout(LayoutKind.Sequential, Pack = 1)]`r`n    internal struct TokPriv1Luid {`r`n        public int Count;`r`n        public long Luid;`r`n        public int Attr;`r`n    }`r`n    internal const int SE_PRIVILEGE_ENABLED = 0x00000002;`r`n    internal const int TOKEN_QUERY = 0x00000008;`r`n    internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;`r`n    public static bool AddPrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = SE_PRIVILEGE_ENABLED;`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    public static bool RemovePrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = 0;  // This line is changed to revoke the privilege`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    [DllImport(`"^""kernel32.dll`"^"", CharSet = CharSet.Auto)]`r`n    public static extern IntPtr GetCurrentProcess();`r`n}"^""; [Privileges]::AddPrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::AddPrivilege('SeTakeOwnershipPrivilege') | Out-Null; $adminSid = New-Object System.Security.Principal.SecurityIdentifier 'S-1-5-32-544'; $adminAccount = $adminSid.Translate([System.Security.Principal.NTAccount]); $adminFullControlAccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule( $adminAccount, [System.Security.AccessControl.FileSystemRights]::FullControl, [System.Security.AccessControl.AccessControlType]::Allow ); $foundAbsolutePaths = @(); try { $foundAbsolutePaths += @(; Get-Item -Path $expandedPath -ErrorAction Stop | Select-Object -ExpandProperty FullName; ); } catch [System.Management.Automation.ItemNotFoundException] { <# Swallow, do not run `Test-Path` before, it's unreliable for globs requiring extra permissions #>; }; $foundAbsolutePaths = $foundAbsolutePaths | Select-Object -Unique | Sort-Object -Property { $_.Length } -Descending; if (!$foundAbsolutePaths) { Write-Host 'Skipping, no items available.'; exit 0; }; Write-Host "^""Initiating processing of $($foundAbsolutePaths.Count) items from `"^""$expandedPath`"^""."^""; foreach ($path in $foundAbsolutePaths) { if (Test-Path -Path $path -PathType Container) { Write-Host "^""Skipping folder (not its contents): `"^""$path`"^""."^""; $skippedCount++; continue; }; if($revert -eq $true) { if (-not $path.EndsWith('.OLD')) { Write-Host "^""Skipping non-backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; } else { if ($path.EndsWith('.OLD')) { Write-Host "^""Skipping backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; }; $originalFilePath = $path; Write-Host "^""Processing file: `"^""$originalFilePath`"^""."^""; if (-Not (Test-Path $originalFilePath)) { Write-Host "^""Skipping, file `"^""$originalFilePath`"^"" not found."^""; $skippedCount++; exit 0; }; $originalAcl = Get-Acl -Path "^""$originalFilePath"^""; $accessGranted = $false; try { $acl = Get-Acl -Path "^""$originalFilePath"^""; $acl.SetOwner($adminAccount) <# Take Ownership (because file is owned by TrustedInstaller) #>; $acl.AddAccessRule($adminFullControlAccessRule) <# Grant rights to be able to move the file #>; Set-Acl -Path $originalFilePath -AclObject $acl -ErrorAction Stop; $accessGranted = $true; } catch { Write-Warning "^""Failed to grant access to `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; if ($revert -eq $true) { $newFilePath = $originalFilePath.Substring(0, $originalFilePath.Length - 4); } else { $newFilePath = "^""$($originalFilePath).OLD"^""; }; try { Move-Item -LiteralPath "^""$($originalFilePath)"^"" -Destination "^""$newFilePath"^"" -Force -ErrorAction Stop; Write-Host "^""Successfully processed `"^""$originalFilePath`"^""."^""; $renamedCount++; if ($accessGranted) { try { Set-Acl -Path $newFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; }; }; } catch { Write-Error "^""Failed to rename `"^""$originalFilePath`"^"" to `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; $failedCount++; if ($accessGranted) { try { Set-Acl -Path $originalFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; }; }; }; if (($renamedCount -gt 0) -or ($skippedCount -gt 0)) { Write-Host "^""Successfully processed $renamedCount items and skipped $skippedCount items."^""; }; if ($failedCount -gt 0) { Write-Warning "^""Failed to process $($failedCount) items."^""; }; [Privileges]::RemovePrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::RemovePrivilege('SeTakeOwnershipPrivilege') | Out-Null"
:: Soft delete files matching pattern: "%SYSTEMROOT%\System32\mssecwfpu.dll" with additional permissions 
PowerShell -ExecutionPolicy Unrestricted -Command "$pathGlobPattern = "^""%SYSTEMROOT%\System32\mssecwfpu.dll"^""; $expandedPath = [System.Environment]::ExpandEnvironmentVariables($pathGlobPattern); Write-Host "^""Searching for items matching pattern: `"^""$($expandedPath)`"^""."^""; $renamedCount   = 0; $skippedCount   = 0; $failedCount    = 0; Add-Type -TypeDefinition "^""using System;`r`nusing System.Runtime.InteropServices;`r`npublic class Privileges {`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,`r`n        ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);`r`n    [DllImport(`"^""advapi32.dll`"^"", SetLastError = true)]`r`n    internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);`r`n    [StructLayout(LayoutKind.Sequential, Pack = 1)]`r`n    internal struct TokPriv1Luid {`r`n        public int Count;`r`n        public long Luid;`r`n        public int Attr;`r`n    }`r`n    internal const int SE_PRIVILEGE_ENABLED = 0x00000002;`r`n    internal const int TOKEN_QUERY = 0x00000008;`r`n    internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;`r`n    public static bool AddPrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = SE_PRIVILEGE_ENABLED;`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    public static bool RemovePrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = 0;  // This line is changed to revoke the privilege`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    [DllImport(`"^""kernel32.dll`"^"", CharSet = CharSet.Auto)]`r`n    public static extern IntPtr GetCurrentProcess();`r`n}"^""; [Privileges]::AddPrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::AddPrivilege('SeTakeOwnershipPrivilege') | Out-Null; $adminSid = New-Object System.Security.Principal.SecurityIdentifier 'S-1-5-32-544'; $adminAccount = $adminSid.Translate([System.Security.Principal.NTAccount]); $adminFullControlAccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule( $adminAccount, [System.Security.AccessControl.FileSystemRights]::FullControl, [System.Security.AccessControl.AccessControlType]::Allow ); $foundAbsolutePaths = @(); try { $foundAbsolutePaths += @(; Get-Item -Path $expandedPath -ErrorAction Stop | Select-Object -ExpandProperty FullName; ); } catch [System.Management.Automation.ItemNotFoundException] { <# Swallow, do not run `Test-Path` before, it's unreliable for globs requiring extra permissions #>; }; $foundAbsolutePaths = $foundAbsolutePaths | Select-Object -Unique | Sort-Object -Property { $_.Length } -Descending; if (!$foundAbsolutePaths) { Write-Host 'Skipping, no items available.'; exit 0; }; Write-Host "^""Initiating processing of $($foundAbsolutePaths.Count) items from `"^""$expandedPath`"^""."^""; foreach ($path in $foundAbsolutePaths) { if (Test-Path -Path $path -PathType Container) { Write-Host "^""Skipping folder (not its contents): `"^""$path`"^""."^""; $skippedCount++; continue; }; if($revert -eq $true) { if (-not $path.EndsWith('.OLD')) { Write-Host "^""Skipping non-backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; } else { if ($path.EndsWith('.OLD')) { Write-Host "^""Skipping backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; }; $originalFilePath = $path; Write-Host "^""Processing file: `"^""$originalFilePath`"^""."^""; if (-Not (Test-Path $originalFilePath)) { Write-Host "^""Skipping, file `"^""$originalFilePath`"^"" not found."^""; $skippedCount++; exit 0; }; $originalAcl = Get-Acl -Path "^""$originalFilePath"^""; $accessGranted = $false; try { $acl = Get-Acl -Path "^""$originalFilePath"^""; $acl.SetOwner($adminAccount) <# Take Ownership (because file is owned by TrustedInstaller) #>; $acl.AddAccessRule($adminFullControlAccessRule) <# Grant rights to be able to move the file #>; Set-Acl -Path $originalFilePath -AclObject $acl -ErrorAction Stop; $accessGranted = $true; } catch { Write-Warning "^""Failed to grant access to `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; if ($revert -eq $true) { $newFilePath = $originalFilePath.Substring(0, $originalFilePath.Length - 4); } else { $newFilePath = "^""$($originalFilePath).OLD"^""; }; try { Move-Item -LiteralPath "^""$($originalFilePath)"^"" -Destination "^""$newFilePath"^"" -Force -ErrorAction Stop; Write-Host "^""Successfully processed `"^""$originalFilePath`"^""."^""; $renamedCount++; if ($accessGranted) { try { Set-Acl -Path $newFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; }; }; } catch { Write-Error "^""Failed to rename `"^""$originalFilePath`"^"" to `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; $failedCount++; if ($accessGranted) { try { Set-Acl -Path $originalFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; }; }; }; if (($renamedCount -gt 0) -or ($skippedCount -gt 0)) { Write-Host "^""Successfully processed $renamedCount items and skipped $skippedCount items."^""; }; if ($failedCount -gt 0) { Write-Warning "^""Failed to process $($failedCount) items."^""; }; [Privileges]::RemovePrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::RemovePrivilege('SeTakeOwnershipPrivilege') | Out-Null"

3. Right click on command prompt to paste it.
4. Press Enter to apply remaining code.

Copy restore code

Copy and run the following code to restore changes:

Revert code

:: Restore service(s) to default state: `MsSecWfp`
PowerShell -ExecutionPolicy Unrestricted -Command "$serviceName = 'MsSecWfp'; $defaultStartupMode = 'Manual'; $ignoreMissingOnRevert =  $false; Write-Host "^""Reverting service `"^""$serviceName`"^"" start to `"^""$defaultStartupMode`"^""."^""; <# -- 1. Skip if service does not exist #>; $service = Get-Service -Name $serviceName -ErrorAction SilentlyContinue; if (!$service) { if ($ignoreMissingOnRevert) { Write-Output "^""Skipping: The service `"^""$serviceName`"^"" is not found. No action required."^""; Exit 0; }; Write-Warning "^""Failed to revert changes to the service `"^""$serviceName`"^"". The service is not found."^""; Exit 1; }; <# -- 2. Enable or skip if already enabled #>; $startupType = $service.StartType <# Does not work before .NET 4.6.1 #>; if (!$startupType) { $startupType = (Get-WmiObject -Query "^""Select StartMode From Win32_Service Where Name='$serviceName'"^"" -ErrorAction Ignore).StartMode; if (!$startupType) { $startupType = (Get-WmiObject -Class Win32_Service -Property StartMode -Filter "^""Name='$serviceName'"^"" -ErrorAction Ignore).StartMode; }; }; if ($startupType -eq "^""$defaultStartupMode"^"") { Write-Host "^""`"^""$serviceName`"^"" has already expected startup mode: `"^""$defaultStartupMode`"^"". No action required."^""; } else { try { Set-Service -Name "^""$serviceName"^"" -StartupType "^""$defaultStartupMode"^"" -Confirm:$false -ErrorAction Stop; Write-Host "^""Reverted `"^""$serviceName`"^"" with `"^""$defaultStartupMode`"^"" start, this may require restarting your computer."^""; } catch { Write-Error "^""Failed to enable `"^""$serviceName`"^"": $_"^""; Exit 1; }; }; <# -- 4. Start if not running (must be enabled first) #>; if ($defaultStartupMode -eq 'Automatic' -or $defaultStartupMode -eq 'Boot' -or $defaultStartupMode -eq 'System') { if ($service.Status -ne [System.ServiceProcess.ServiceControllerStatus]::Running) { Write-Host "^""`"^""$serviceName`"^"" is not running, starting it."^""; try { Start-Service $serviceName -ErrorAction Stop; Write-Host "^""Started `"^""$serviceName`"^"" successfully."^""; } catch { Write-Warning "^""Failed to start `"^""$serviceName`"^"", requires restart, it will be started after reboot.`r`n$_"^""; }; } else { Write-Host "^""`"^""$serviceName`"^"" is already running, no need to start."^""; }; }"
:: Restore files matching pattern: "%SYSTEMROOT%\System32\drivers\mssecwfp.sys" with additional permissions 
PowerShell -ExecutionPolicy Unrestricted -Command "$revert = $true; $pathGlobPattern = "^""%SYSTEMROOT%\System32\drivers\mssecwfp.sys.OLD"^""; $expandedPath = [System.Environment]::ExpandEnvironmentVariables($pathGlobPattern); Write-Host "^""Searching for items matching pattern: `"^""$($expandedPath)`"^""."^""; $renamedCount   = 0; $skippedCount   = 0; $failedCount    = 0; Add-Type -TypeDefinition "^""using System;`r`nusing System.Runtime.InteropServices;`r`npublic class Privileges {`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,`r`n        ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);`r`n    [DllImport(`"^""advapi32.dll`"^"", SetLastError = true)]`r`n    internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);`r`n    [StructLayout(LayoutKind.Sequential, Pack = 1)]`r`n    internal struct TokPriv1Luid {`r`n        public int Count;`r`n        public long Luid;`r`n        public int Attr;`r`n    }`r`n    internal const int SE_PRIVILEGE_ENABLED = 0x00000002;`r`n    internal const int TOKEN_QUERY = 0x00000008;`r`n    internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;`r`n    public static bool AddPrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = SE_PRIVILEGE_ENABLED;`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    public static bool RemovePrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = 0;  // This line is changed to revoke the privilege`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    [DllImport(`"^""kernel32.dll`"^"", CharSet = CharSet.Auto)]`r`n    public static extern IntPtr GetCurrentProcess();`r`n}"^""; [Privileges]::AddPrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::AddPrivilege('SeTakeOwnershipPrivilege') | Out-Null; $adminSid = New-Object System.Security.Principal.SecurityIdentifier 'S-1-5-32-544'; $adminAccount = $adminSid.Translate([System.Security.Principal.NTAccount]); $adminFullControlAccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule( $adminAccount, [System.Security.AccessControl.FileSystemRights]::FullControl, [System.Security.AccessControl.AccessControlType]::Allow ); $foundAbsolutePaths = @(); try { $foundAbsolutePaths += @(; Get-Item -Path $expandedPath -ErrorAction Stop | Select-Object -ExpandProperty FullName; ); } catch [System.Management.Automation.ItemNotFoundException] { <# Swallow, do not run `Test-Path` before, it's unreliable for globs requiring extra permissions #>; }; $foundAbsolutePaths = $foundAbsolutePaths | Select-Object -Unique | Sort-Object -Property { $_.Length } -Descending; if (!$foundAbsolutePaths) { Write-Host 'Skipping, no items available.'; exit 0; }; Write-Host "^""Initiating processing of $($foundAbsolutePaths.Count) items from `"^""$expandedPath`"^""."^""; foreach ($path in $foundAbsolutePaths) { if (Test-Path -Path $path -PathType Container) { Write-Host "^""Skipping folder (not its contents): `"^""$path`"^""."^""; $skippedCount++; continue; }; if($revert -eq $true) { if (-not $path.EndsWith('.OLD')) { Write-Host "^""Skipping non-backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; } else { if ($path.EndsWith('.OLD')) { Write-Host "^""Skipping backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; }; $originalFilePath = $path; Write-Host "^""Processing file: `"^""$originalFilePath`"^""."^""; if (-Not (Test-Path $originalFilePath)) { Write-Host "^""Skipping, file `"^""$originalFilePath`"^"" not found."^""; $skippedCount++; exit 0; }; $originalAcl = Get-Acl -Path "^""$originalFilePath"^""; $accessGranted = $false; try { $acl = Get-Acl -Path "^""$originalFilePath"^""; $acl.SetOwner($adminAccount) <# Take Ownership (because file is owned by TrustedInstaller) #>; $acl.AddAccessRule($adminFullControlAccessRule) <# Grant rights to be able to move the file #>; Set-Acl -Path $originalFilePath -AclObject $acl -ErrorAction Stop; $accessGranted = $true; } catch { Write-Warning "^""Failed to grant access to `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; if ($revert -eq $true) { $newFilePath = $originalFilePath.Substring(0, $originalFilePath.Length - 4); } else { $newFilePath = "^""$($originalFilePath).OLD"^""; }; try { Move-Item -LiteralPath "^""$($originalFilePath)"^"" -Destination "^""$newFilePath"^"" -Force -ErrorAction Stop; Write-Host "^""Successfully processed `"^""$originalFilePath`"^""."^""; $renamedCount++; if ($accessGranted) { try { Set-Acl -Path $newFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; }; }; } catch { Write-Error "^""Failed to rename `"^""$originalFilePath`"^"" to `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; $failedCount++; if ($accessGranted) { try { Set-Acl -Path $originalFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; }; }; }; if (($renamedCount -gt 0) -or ($skippedCount -gt 0)) { Write-Host "^""Successfully processed $renamedCount items and skipped $skippedCount items."^""; }; if ($failedCount -gt 0) { Write-Warning "^""Failed to process $($failedCount) items."^""; }; [Privileges]::RemovePrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::RemovePrivilege('SeTakeOwnershipPrivilege') | Out-Null"
:: Restore files matching pattern: "%SYSTEMROOT%\System32\mssecwfpu.dll" with additional permissions 
PowerShell -ExecutionPolicy Unrestricted -Command "$revert = $true; $pathGlobPattern = "^""%SYSTEMROOT%\System32\mssecwfpu.dll.OLD"^""; $expandedPath = [System.Environment]::ExpandEnvironmentVariables($pathGlobPattern); Write-Host "^""Searching for items matching pattern: `"^""$($expandedPath)`"^""."^""; $renamedCount   = 0; $skippedCount   = 0; $failedCount    = 0; Add-Type -TypeDefinition "^""using System;`r`nusing System.Runtime.InteropServices;`r`npublic class Privileges {`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,`r`n        ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);`r`n    [DllImport(`"^""advapi32.dll`"^"", ExactSpelling = true, SetLastError = true)]`r`n    internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);`r`n    [DllImport(`"^""advapi32.dll`"^"", SetLastError = true)]`r`n    internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);`r`n    [StructLayout(LayoutKind.Sequential, Pack = 1)]`r`n    internal struct TokPriv1Luid {`r`n        public int Count;`r`n        public long Luid;`r`n        public int Attr;`r`n    }`r`n    internal const int SE_PRIVILEGE_ENABLED = 0x00000002;`r`n    internal const int TOKEN_QUERY = 0x00000008;`r`n    internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;`r`n    public static bool AddPrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = SE_PRIVILEGE_ENABLED;`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    public static bool RemovePrivilege(string privilege) {`r`n        try {`r`n            bool retVal;`r`n            TokPriv1Luid tp;`r`n            IntPtr hproc = GetCurrentProcess();`r`n            IntPtr htok = IntPtr.Zero;`r`n            retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);`r`n            tp.Count = 1;`r`n            tp.Luid = 0;`r`n            tp.Attr = 0;  // This line is changed to revoke the privilege`r`n            retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);`r`n            retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);`r`n            return retVal;`r`n        } catch (Exception ex) {`r`n            throw new Exception(`"^""Failed to adjust token privileges`"^"", ex);`r`n        }`r`n    }`r`n    [DllImport(`"^""kernel32.dll`"^"", CharSet = CharSet.Auto)]`r`n    public static extern IntPtr GetCurrentProcess();`r`n}"^""; [Privileges]::AddPrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::AddPrivilege('SeTakeOwnershipPrivilege') | Out-Null; $adminSid = New-Object System.Security.Principal.SecurityIdentifier 'S-1-5-32-544'; $adminAccount = $adminSid.Translate([System.Security.Principal.NTAccount]); $adminFullControlAccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule( $adminAccount, [System.Security.AccessControl.FileSystemRights]::FullControl, [System.Security.AccessControl.AccessControlType]::Allow ); $foundAbsolutePaths = @(); try { $foundAbsolutePaths += @(; Get-Item -Path $expandedPath -ErrorAction Stop | Select-Object -ExpandProperty FullName; ); } catch [System.Management.Automation.ItemNotFoundException] { <# Swallow, do not run `Test-Path` before, it's unreliable for globs requiring extra permissions #>; }; $foundAbsolutePaths = $foundAbsolutePaths | Select-Object -Unique | Sort-Object -Property { $_.Length } -Descending; if (!$foundAbsolutePaths) { Write-Host 'Skipping, no items available.'; exit 0; }; Write-Host "^""Initiating processing of $($foundAbsolutePaths.Count) items from `"^""$expandedPath`"^""."^""; foreach ($path in $foundAbsolutePaths) { if (Test-Path -Path $path -PathType Container) { Write-Host "^""Skipping folder (not its contents): `"^""$path`"^""."^""; $skippedCount++; continue; }; if($revert -eq $true) { if (-not $path.EndsWith('.OLD')) { Write-Host "^""Skipping non-backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; } else { if ($path.EndsWith('.OLD')) { Write-Host "^""Skipping backup file: `"^""$path`"^""."^""; $skippedCount++; continue; }; }; $originalFilePath = $path; Write-Host "^""Processing file: `"^""$originalFilePath`"^""."^""; if (-Not (Test-Path $originalFilePath)) { Write-Host "^""Skipping, file `"^""$originalFilePath`"^"" not found."^""; $skippedCount++; exit 0; }; $originalAcl = Get-Acl -Path "^""$originalFilePath"^""; $accessGranted = $false; try { $acl = Get-Acl -Path "^""$originalFilePath"^""; $acl.SetOwner($adminAccount) <# Take Ownership (because file is owned by TrustedInstaller) #>; $acl.AddAccessRule($adminFullControlAccessRule) <# Grant rights to be able to move the file #>; Set-Acl -Path $originalFilePath -AclObject $acl -ErrorAction Stop; $accessGranted = $true; } catch { Write-Warning "^""Failed to grant access to `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; if ($revert -eq $true) { $newFilePath = $originalFilePath.Substring(0, $originalFilePath.Length - 4); } else { $newFilePath = "^""$($originalFilePath).OLD"^""; }; try { Move-Item -LiteralPath "^""$($originalFilePath)"^"" -Destination "^""$newFilePath"^"" -Force -ErrorAction Stop; Write-Host "^""Successfully processed `"^""$originalFilePath`"^""."^""; $renamedCount++; if ($accessGranted) { try { Set-Acl -Path $newFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; }; }; } catch { Write-Error "^""Failed to rename `"^""$originalFilePath`"^"" to `"^""$newFilePath`"^"": $($_.Exception.Message)"^""; $failedCount++; if ($accessGranted) { try { Set-Acl -Path $originalFilePath -AclObject $originalAcl -ErrorAction Stop; } catch { Write-Warning "^""Failed to restore access on `"^""$originalFilePath`"^"": $($_.Exception.Message)"^""; }; }; }; }; if (($renamedCount -gt 0) -or ($skippedCount -gt 0)) { Write-Host "^""Successfully processed $renamedCount items and skipped $skippedCount items."^""; }; if ($failedCount -gt 0) { Write-Warning "^""Failed to process $($failedCount) items."^""; }; [Privileges]::RemovePrivilege('SeRestorePrivilege') | Out-Null; [Privileges]::RemovePrivilege('SeTakeOwnershipPrivilege') | Out-Null"

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