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 194.87.185.2 on port 443:
$ telnet 194.87.185.2 443
Trying 194.87.185.2…
Connected to 194.87.185.2.
Escape character is ‘^]’
Malicious domains observed at this IP address:
ekuaep08.top. 600 IN A 194.87.185.2
ekudiw09.top. 600 IN A 194.87.185.2
ekuniv18.top. 600 IN A 194.87.185.2
ekuqap10.top. 600 IN A 194.87.185.2