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 at 193.42.113.3 on port 443.
$ telnet 193.42.113.3 443
Trying 193.42.113.3…
Connected to 193.42.113.3.
Escape character is ‘^]’
Malicious domains observed at this IP address:
morfxe05.top. 600 IN A 193.42.113.3
morgeh04.top. 600 IN A 193.42.113.3
qolfei05.top. 600 IN A 193.42.113.3