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 located at 135.125.241.48 on port 443:
$ telnet 135.125.241.48 443
Trying 135.125.241.48…
Connected to 135.125.241.48.
Escape character is ‘^]’
gc-distribution.biz. 60 IN A 135.125.241.48