Artifacts/AddRemovePrograms/Discover.ps1
|
<#
.SYNOPSIS Scans for Add/Remove Programs entries .PARAMETER MountPath The path where the Windows image was mounted to. .PARAMETER OutputPath The filesystem path where the discovery manifest will be emitted. #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [string] $MountPath, [Parameter(Mandatory = $true)] [string] $OutputPath ) $ArtifactName = Split-Path -Path $PSScriptRoot -Leaf Write-Verbose -Message ('Starting discovery for {0} artifact' -f $ArtifactName) ### Determine the path where the manifest file will be stored $ManifestPath = '{0}\{1}.json' -f $OutputPath, $ArtifactName ### Create a temporary key to mount the SOFTWARE registry hive on $TempKey = (New-Guid).Guid ### Mount the SOFTWARE hive $RegistryMount = @{ FilePath = 'reg.exe' ArgumentList = 'load "HKLM\{0}" "{1}\Windows\System32\Config\SOFTWARE"' -f $TempKey, $MountPath Wait = $true } Start-Process @RegistryMount Write-Verbose -Message ('Finished loading the SOFTWARE registry hive from {0}' -f $MountPath) ### Define empty array to hold installed software items $SoftwareList = @() ### Obtain registry paths for installed software $PathList = @() $PathList += Get-ChildItem -Path HKLM:\$TempKey\Microsoft\Windows\CurrentVersion\Uninstall $PathList += Get-ChildItem -Path HKLM:\$TempKey\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall ### Obtain DisplayName property from each registry item foreach ($Software in $PathList) { $DisplayName = (Get-ItemProperty -Path $Software.PSPath -Name DisplayName -ErrorAction Ignore).DisplayName if ($DisplayName -and $DisplayName -ne '') { $SoftwareList += $DisplayName Write-Verbose -Message ('Added new Add/Remove Programs software item: {0}' -f $DisplayName) } } ### Unmount the SOFTWARE registry hive from the mounted image $RegistryUnmount = @{ FilePath = 'reg.exe' ArgumentList = 'unload "HKLM\{0}"' -f $TempKey Wait = $true } Start-Process @RegistryUnmount Write-Verbose -Message 'Finished unmounting the registry hive' ### Write out the discovery results to the manifest file $SoftwareList | ConvertTo-Json | Set-Content -Path $ManifestPath Write-Verbose -Message ('Finished discovery for {0} artifact' -f (Split-Path -Path $PSScriptRoot -Leaf)) |