A .zip file which, when uncompressed, is a perfect copy of itself.

SSH-Snake is a powerful tool designed to perform automatic network traversal using SSH private keys discovered on systems, with the objective of creating a comprehensive map of a network and its dependencies, identifying to what extent a network can be compromised using SSH and SSH private keys starting from a particular system.

SSH-Snake can automatically reveal the relationship between systems which are connected via SSH, which would normally take a tremendous amount of time and effort to perform manually. It's completely self-replicating and self-propagating -- and completely fileless. In many ways, SSH-Snake is actually a worm: It replicates itself and spreads itself from one system to another as far as it can. SSH-Snake takes a depth-first approach to discovery: once it connects to one system, it tries to connect further from that system before backtracking.

• On the current system, find any SSH private keys
• On the current system, find any hosts or destinations (user@host) that the private keys may be accepted,
• Attempt to SSH into all of the destinations using all of the private keys discovered,
• If a destination is successfully connected to, repeats steps #1 - #4 on the connected-to system.