The remote host has a backdoor installed.
GateCrasher is installed. This backdoor allows anyone to partially take the control of the remote system. An attacker may use it to steal your password or prevent your system from working properly.
Telnet to this host on port 6969, then type 'gatecrasher;', without the quotes, and press Enter. Then type 'uninstall;' and press Enter, it will be uninstalled. Manually inspect and repair this system