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 65.21.114.237 on port 443 TCP:
$ telnet 65.21.114.237 443
Trying 65.21.114.237…
Connected to 65.21.114.237.
Escape character is ‘^]’
dashgaugepistolfly.com. 60 IN A 65.21.114.237
myuftdhrgvvtrh.top. 60 IN A 65.21.114.237