PowerShell – regedit

Using PowerShell for editing of registry illustrated by the example of Internet Explorer 11 Hardening (MS15-124 – critical security issue).

#-------------[deklarations]--------------------------
#source
$computers=Get-Content '\\host\shares\!scripts\!source\!computers.txt'
#logs
$successLog='\\host\shares\!scripts\!logs\done.LOG'
$errorLog='\\host\shares\!scripts\!logs\error.LOG'
$unreachableLog='\\host\shares\!scripts\!logs\unreachable.LOG'
#params

#-------------[functions]--------------------------
foreach($computer in $computers) {
    if(Test-Connection -ComputerName $computer -Count 1 -Quiet) {
        Try {
            Write-host "Updating: $computer" -foreground 'gray'
            Invoke-Command -computerName $computer -ScriptBlock {New-Item -Path 'HKLM:\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl' -Name 'FEATURE_ALLOW_USER32_EXCEPTION_HANDLER_HARDENING' -Force}
            Invoke-Command -computerName $computer -ScriptBlock {New-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_ALLOW_USER32_EXCEPTION_HANDLER_HARDENING\' -Name iexplore.exe -Value 1 -PropertyType 'DWORD' -Force}
            Invoke-Command -computerName $computer -ScriptBlock {New-Item -Path 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl' -Name 'FEATURE_ALLOW_USER32_EXCEPTION_HANDLER_HARDENING' -Force}
            Invoke-Command -computerName $computer -ScriptBlock {New-ItemProperty -Path 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_ALLOW_USER32_EXCEPTION_HANDLER_HARDENING\' -Name iexplore.exe -Value 1 -PropertyType 'DWORD' -Force} 
            
            Write-host "updated: $computer" -foreground 'green'
            $computer >> $successLog
        } Catch {
            Write-host "error: $computer" -foreground 'red'
            $computer >> $errorLog<br> 
        } 
    } else {
        Write-host "offline: $computer" -foreground 'yellow'
        $computer >> $unreachableLog
    }
}
#-------------krolaki.eu--------------------------