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 20.150.137.35 on port 7400 TCP:
$ telnet 20.150.137.35 7400
Trying 20.150.137.35…
Connected to 20.150.137.35.
Escape character is ‘^]’
Referencing malware samples (MD5 hash):
05057af2091a89b9e8493804e4d0551f — AV detection: 27 / 68 (39.71%)
389c1a165c6169966cee944569e9ad35 — AV detection: 23 / 68 (33.82%)
dc1cbeeae12fd82cbbab918c6037b965 — AV detection: 30 / 70 (42.86%)