OSD

22.11.1.1

Public/Functions/OSDCloud/Update-DefenderStack.ps1

function Update-DefenderStack {
    [CmdletBinding()]
    param ()
    if (Test-WebConnection -Uri "google.com") {
        # Source Addresses - Defender for Windows 10, 8.1 ################################
        $sourceAVx64 = "http://go.microsoft.com/fwlink/?LinkID=121721&arch=x64"
        $sourcePlatformx64 = "https://go.microsoft.com/fwlink/?LinkID=870379&clcid=0x409&arch=x64"
        Write-Output "UPDATE Defender Package Script version $ScriptVer..."
        $Intermediate = "$env:TEMP\DefenderScratchSpace"
    
        if (!(Test-Path -Path "$Intermediate")) {
            $Null = New-Item -Path "$env:TEMP" -Name "DefenderScratchSpace" -ItemType Directory
        }
    
        if (!(Test-Path -Path "$Intermediate\x64")) {
            $Null = New-Item -Path "$Intermediate" -Name "x64" -ItemType Directory
        }

        Remove-Item -Path "$Intermediate\x64\*" -Force -EA SilentlyContinue
        $wc = New-Object System.Net.WebClient
    
        # x64 AV #########################################################################
    
        $Dest = "$Intermediate\x64\" + 'mpam-fe.exe'
        Write-Output "Starting MPAM-FE Download"
        $wc.DownloadFile($sourceAVx64, $Dest)
        if (Test-Path -Path $Dest) {
            $x = Get-Item -Path $Dest
            [version]$Version1a = $x.VersionInfo.ProductVersion #Downloaded
            [version]$Version1b = (Get-MpComputerStatus).AntivirusSignatureVersion #Currently Installed
            if ($Version1a -gt $Version1b) {
                Write-Output "Starting MPAM-FE Install of $Version1b to $Version1a"
                $MPAMInstall = Start-Process -FilePath $Dest -Wait -PassThru
            }
            else {
                Write-Output "No Update Needed, Installed:$Version1b vs Downloaded: $Version1a"
            }
            Write-Output "Finished MPAM-FE Install"
        }
        else {
            Write-Output "Failed MPAM-FE Download"
        }
    
        # x64 Update Platform ########################################################################
        Write-Output "Starting Update Platform Download"
        $Dest = "$Intermediate\x64\" + 'UpdatePlatform.exe'
        $wc.DownloadFile($sourcePlatformx64, $Dest)
    
        if (Test-Path -Path $Dest) {
            $x = Get-Item -Path $Dest
            [version]$Version2a = $x.VersionInfo.ProductVersion #Downloaded
            [version]$Version2b = (Get-MpComputerStatus).AMServiceVersion #Installed
    
            if ($Version2a -gt $Version2b) {
                Write-Output "Starting Update Platform Install of $Version2b to $Version2a"
                $UPInstall = Start-Process -FilePath $Dest -Wait -PassThru
            }
            else {
                Write-Output "No Update Needed, Installed:$Version2b vs Downloaded: $Version2a"
            }
            Write-Output "Finished Update Platform Install"
        }
        else {
            Write-Output "Failed Update Platform Download"
        }
        New-Alias -Name 'UpdateDefenderStack' -Value 'osdcloud-UpdateDefenderStack' -Description 'OSDCloud' -Force
    }
    else {
        Write-Output "No Internet Connection, Skipping Defender Updates"
    }
}