Sshimpanzee
Reverse shell based on sshd supporting DNS and ICMP tunnelling as well as HTTP and Socks proxies.
Sshimpanzee allows you to build a static reverse ssh server. Instead of listening on a port and waiting for connections, the ssh server will initiate a reverse connect to attacker's ip, just like a regular reverse shell. Sshimpanzee allows you to take advantage of every features of a regular ssh connection, like port forwards, dynamic socks proxies, or FTP server.
More importantly, if a direct connection from the victim machine to the attacker server is not possible, it provides different tunnelling mecanisms such as DNS Tunnelling, ICMP Tunnelling, or HTTP Encapsulation. It also supports HTTP and SOCKS5 proxies