Weevely is a stealth PHP web shell that simulate telnet-like connection. It is an essential tool for web application post exploitation, and could be used like an hidden backdoor and as a useful telnet-like console replacement to manage web accounts, even if hosted in free hosting services. Just generate and upload the "server" PHP code on the target web server, and run Weevely client locally to transmit shell commands.

Download
http://code.google.com/p/weevely/downloads/list