The host at this IP address is running a malware botnet controller which is being used to control infected computers (bots) around the globe using a trojan horse.
Malware botnet controller located at 77.246.158.377 on port 443:
$ telnet 77.246.158.37 443
Trying 77.246.158.37…
Connected to 77.246.158.37.
Escape character is ‘^]’
gc-distribution.biz. 60 IN A 77.246.158.377