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 51.178.13.102 on port 8324 TCP:
$ telnet 51.178.13.102 8324
Trying 51.178.13.102…
Connected to 51.178.13.102.
Escape character is ‘^]’
$ nslookup 51.178.13.102
ip102.ip-51-178-13.eu
Referencing malware samples (MD5 hash):
5028fed58b14f0eb64be8c168289325e — AV detection: 46 / 68 (67.65%)