Alcatel OmniSwitch 7700/7800 switches backdoor

The remote host seems to be a backdoored Alcatel OmniSwitch 7700/7800. An attacker can gain full access to any device running AOS version 5.1.1, which can result in, but is not limited to, unauthorized access, unauthorized monitoring, information leakage, or denial of service.
Block access to port 6778/TCP or update to AOS 5.1.1.R02 or AOS 5.1.1.R03.