Endlessh is an SSH tarpit that very slowly sends an endless, random SSH banner. It keeps SSH clients locked up for hours or even days at a time. The purpose is to put your real SSH server on another port and then let the script kiddies get stuck in this tarpit instead of bothering a real server.
See
SSH Honeypot in 4 Minutes – Trap Hackers in Your Server
by Wolfgang’s Channel on YouTube
#technology #hacking #security #SSH #Endlessh