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 51.195.167.0 on port 5200 TCP:
$ telnet 51.195.167.0 5200
Trying 51.195.167.0…
Connected to 51.195.167.0.
Escape character is ‘^]’
$ nslookup 51.195.167.0
ip0.ip-51-195-167.eu
$ dig +short donafriend.ddns.net
51.195.167.0
Referencing malware samples:
MD5 1a2cd8fff0b19363a096722678a0fd55