The host at this IP address is obviously operated by cybercriminals. It 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 77.223.99.210 on port 443:
$ telnet 77.223.99.210 443
Trying 77.223.99.210…
Connected to 77.223.99.210.
Escape character is ‘^]’
Malicious domains observed on this IP address:
allthisworldinonehands.com. 600 IN A 77.223.99.210
avyanok.com. 600 IN A 77.223.99.210
ami-gl.net. 600 IN A 77.223.99.210
btc-finder.net. 600 IN A 77.223.99.210
vpn-lib.com. 600 IN A 77.223.99.210