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 194.87.206.141 on port 443 TCP:
$ telnet 194.87.206.141 443
Trying 194.87.206.141…
Connected to 194.87.206.141.
Escape character is ‘^]’
doemek01.top. 600 IN A 194.87.206.141