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 20.151.200.9 on port 6606 TCP:
$ telnet 20.151.200.9 6606
Trying 20.151.200.9…
Connected to 20.151.200.9.
Escape character is ‘^]’
Referencing malware samples (MD5 hash):
6570f922593bca44d7dd06f0b0212169 — AV detection: 42 / 66 (63.64%)