Uninstall-SecureMFA_WIN_OTP_AuthenticationProvider.ps1
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#Requires -RunAsAdministrator #Requires -Version 5.0 <# .SYNOPSIS Uninstalls SecureMFA WIN OTP Authentication Provider. .DESCRIPTION Uninstalls SecureMFA WIN OTP Authentication Provider from system and restores default provider settings. .NOTES Version: 2.0.0.1 Author: SecureMfa.com Creation Date: 28/09/2020 Purpose/Change: Release .EXAMPLE C:\PS> Uninstall-SecureMFA_WIN_OTP_AuthenticationProvider This command Uninstalls SecureMFA WIN OTP Authentication Provider from Windows. #> $provider_dll = [Environment]::SystemDirectory + "\sMFAWINAuthenticationProvider.dll" $provider_wintools_dll = (Join-Path -Path $PSScriptRoot -ChildPath SecureMFA_WinTools.dll) Function Uninstall-SecureMFA_WIN_OTP_AuthenticationProvider { Param ( [Parameter(Mandatory=$false)][Switch]$Force ) #Validate uninsatall action if (!$Force) { $message = "Please confirm if you want to uninstall SecureMFA WIN OTP Authentication Provider [ Default Windows authentication provided will be restored ]" $question = 'Please confirm?' $choices = New-Object Collections.ObjectModel.Collection[Management.Automation.Host.ChoiceDescription] $choices.Add((New-Object Management.Automation.Host.ChoiceDescription -ArgumentList '&Yes')) $choices.Add((New-Object Management.Automation.Host.ChoiceDescription -ArgumentList '&No')) $decision_Validation = $Host.UI.PromptForChoice($message, $question, $choices, 0) if ($decision_Validation -eq 1 ) {Write-Host "Uninstall has been cancelled, exiting!" -ForegroundColor Yellow ; break} } try { $Error.Clear() if (!(Test-Path $provider_wintools_dll -Type Leaf) ) { throw "$provider_wintools_dll does not exist" } Write-Host "Removing SecureMFA WIN OTP Authentication Provider from $env:computername" -ForegroundColor Yellow #Start Uninstall #Unregister provider if((Test-Path -LiteralPath "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Providers\{85A8E189-2C6F-44CF-AE85-4FD6220589DE}") -eq $true) { Remove-Item -LiteralPath "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Providers\{85A8E189-2C6F-44CF-AE85-4FD6220589DE}" -force; } if((Test-Path -LiteralPath "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Provider Filters\{85A8E189-2C6F-44CF-AE85-4FD6220589DE}") -eq $true) { Remove-Item -LiteralPath "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Provider Filters\{85A8E189-2C6F-44CF-AE85-4FD6220589DE}" -force; } # Restore windows fallback settings New-ItemProperty -LiteralPath 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Providers' -Name 'ProhibitFallbacks' -Value 0 -PropertyType DWord -Force -ea SilentlyContinue; #Delete provider file from system directory Write-Host "Removing SecureMfa WIN OTP Provider $provider_dll" -ForegroundColor yellow; if(Test-Path -Path $provider_dll) {Remove-Item $provider_dll -Force} #Load GAC Assembly write-host "Removing from GAC Assembly." -ForegroundColor Yellow Set-location $PSScriptRoot [System.Reflection.Assembly]::Load("System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a") $publish = New-Object System.EnterpriseServices.Internal.Publish #Remove SecureMfaOtpProvider DLL from GAC assembly Write-Host "Removing SecureMfa WIN OTP Provider $provider_wintools_dll" -ForegroundColor yellow; $publish.GacRemove($provider_wintools_dll) # Remove WIN OTP Authentication Provider registry write-host "Removing WIN OTP Authentication Provider registry entries." -ForegroundColor Yellow if((Test-Path -LiteralPath "HKLM:\SOFTWARE\SecureMFA") -eq $true) { $keyPath = 'HKLM:\SOFTWARE\SecureMFA'; Remove-ItemProperty -Path $keyPath -Name win* -Force; }; # Uninstall completed: write-host "Uninstall of SecureMFA WIN OTP Authentication Provider complete." -ForegroundColor Green } catch { Write-Host "$($MyInvocation.InvocationName): $_" -ForegroundColor red } } |