Public/Remove-SudoSession.ps1
<# .SYNOPSIS Removes an Elevated (i.e. "Run As Administrator") PSSession for the current user in the current PowerShell Session and and reverts any changes in WSMAN/WinRM and GPO configuration made by the companion New-SudoSession function. This is a companion function with New-SudoSession. If you DO NOT want to ensure that WinRM/WSMan and GPO configuration is as it was prior to running New-SudoSession, there is no reason to use this function. You can simply use... Get-PSSession | Remove-PSession ...like any other normal PSSession. If you DO want to ensure that WinRM/WSMan and GPO configuration is as it was prior to running New-SudoSession, then use this function with its -RevertConfig switch and -OriginalConfigInfo parameter. .DESCRIPTION Removes an Elevated (i.e. "Run As Administrator") PSSession for the current user in the current PowerShell Session and and reverts any changes in WSMAN/WinRM and GPO configuration made by the companion New-SudoSession function. This is a companion function with New-SudoSession. If you DO NOT want to ensure that WinRM/WSMan and GPO configuration is as it was prior to running New-SudoSession, there is no reason to use this function. You can simply use... Get-PSSession | Remove-PSession ...like any other normal PSSession. If you DO want to ensure that WinRM/WSMan and GPO configuration is as it was prior to running New-SudoSession, then use this function with its -RevertConfig switch and -OriginalConfigInfo parameter. .PARAMETER UserName This is a string that represents a UserName with Administrator privileges. Defaults to current user. This parameter is mandatory if you do NOT use the -Credentials parameter. .PARAMETER Password This can be either a plaintext string or a secure string that represents the password for the -UserName. This parameter is mandatory if you do NOT use the -Credentials parameter. .PARAMETER Credentials This is a System.Management.Automation.PSCredential object used to create an elevated PSSession. .PARAMETER OriginalConfigInfo A PSCustomObject that can be found in the "WSManAndRegistryChanges" property of the PSCustomObject generated by the New-SudoSession function. The "WSManAndRegistryChanges" property is itself a PSCustomObject with the following properties: [bool]WinRMStateChange [bool]WSMANServerCredSSPStateChange [bool]WSMANClientCredSSPStateChange [System.Collections.ArrayList]RegistryKeyCreated [System.Collections.ArrayList]RegistryKeyPropertiesCreated .PARAMETER SessionToRemove A System.Management.Automation.Runspaces.PSSession object that you would like to remove. You can use the "ElevatedPSSession" property of the PSCustomObject generated by the New-SudoSession function, or, you can simply get whichever PSSession you would like to remove by doing the typical... Get-PSSession -Name <Name> This parameter accepts value from the pipeline. .EXAMPLE Get-PSSession -Name <Name> $ModuleToInstall = "PackageManagement" $LatestVersion = $(Find-Module PackageManagement).Version # PLEASE NOTE the use of single quotes in the below $InstallModuleExpression string $InstallModuleExpression = 'Install-Module -Name $ModuleToInstall -RequiredVersion $LatestVersion' $SudoSession = New-SudoSession -Credentials $MyCreds -Expression $InstallModuleExpression Remove-SudoSession -Credentials $MyCreds -OriginalConfigInfo $SudoSession.WSManAndRegistryChanges -SessionToRemove $SudoSession.ElevatedPSSession #> function Remove-SudoSession { [CmdletBinding(DefaultParameterSetName='Supply UserName and Password')] Param( [Parameter( Mandatory=$True, ValueFromPipeline=$True, Position=0 )] [System.Management.Automation.Runspaces.PSSession]$SessionToRemove, [Parameter(Mandatory=$False)] $OriginalConfigInfo = $global:NewSessionAndOriginalStatus.WSManAndRegistryChanges, [Parameter( Mandatory=$False, ParameterSetName='Supply UserName and Password' )] [string]$UserName = $([System.Security.Principal.WindowsIdentity]::GetCurrent().Name -split "\\")[-1], [Parameter( Mandatory=$False, ParameterSetName='Supply UserName and Password' )] [securestring]$Password, [Parameter( Mandatory=$False, ParameterSetName='Supply Credentials' )] [System.Management.Automation.PSCredential]$Credentials ) ##### BEGIN Variable/Parameter Transforms and PreRun Prep ##### if (GetElevation) { Write-Error "The current PowerShell Session is already being run with elevated permissions. There is no reason to use the Start-SudoSession function. Halting!" $global:FunctionResult = "1" return } if ($OriginalConfigInfo -eq $null) { Write-Warning "Unable to determine the original configuration of WinRM/WSMan and AllowFreshCredentials Registry prior to using New-SudoSession. No configuration changes will be made/reverted." Write-Warning "The only action will be removing the Elevated PSSession specified by the -SessionToRemove parameter." } ##### END Variable/Parameter Transforms and PreRunPrep ##### ##### BEGIN Main Body ##### if ($OriginalConfigInfo -ne $null) { $RestoreOriginalSystemConfigSplatParams = @{ ExistingSudoSession = $SessionToRemove OriginalConfigInfo = $OriginalConfigInfo ErrorAction = "Stop" } if ($SessionToRemove.State -ne "Opened") { if ($global:SudoCredentials) { if (!$Credentials) { if ($Username -match "\\") { $UserName = $($UserName -split "\\")[-1] } if ($global:SudoCredentials.UserName -match "\\") { $SudoUserName = $($global:SudoCredentials.UserName -split "\\")[-1] } else { $SudoUserName = $global:SudoCredentials.UserName } if ($SudoUserName -match $UserName) { $Credentials = $global:SudoCredentials } } else { if ($global:SudoCredentials.UserName -ne $Credentials.UserName) { $global:SudoCredentials = $Credentials } } } if (!$Credentials) { if (!$Password) { $Password = Read-Host -Prompt "Please enter the password for $UserName" -AsSecureString } $Credentials = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $UserName, $Password } if ($Credentials.UserName -match "\\") { $UserName = $($Credentials.UserName -split "\\")[-1] } if ($Username -match "\\") { $UserName = $($UserName -split "\\")[-1] } $global:SudoCredentials = $null $RestoreOriginalSystemConfigSplatParams.Add("Credentials",$Credentials) } try { Restore-OriginalSystemConfig @RestoreOriginalSystemConfigSplatParams } catch { Write-Error $_ $global:FunctionResult = "1" return } } try { Remove-PSSession $SessionToRemove -ErrorAction Stop } catch { Write-Error $_ $global:FunctionResult = "1" return } ##### END Main Body ##### } # 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