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 188.8.131.52 on port 6821 TCP:
$ telnet 184.108.40.206 6821
Connected to 220.127.116.11.
Escape character is ‘^]’
Referencing malware samples (MD5 hash):
b39913a29d956b08ac6fdaf1d4fa742d — AV detection: 43 / 68 (63.24%)