WSH is a very tiny PHP script backdoor with a python client that implements functionality to download and upload files and provides an interactive shell.
You can download it from the following link: https://packetstormsecurity.com/files/download/86810/wsh-0.1.tar.gz
Source: https://packetstormsecurity.com/files/86810/WSH-PHP-Backdoor-1.0.html

