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 126.96.36.199 on port 8400 TCP:
$ telnet 188.8.131.52 8400
Connected to 184.108.40.206.
Escape character is ‘^]’
Referencing malware samples (MD5 hash):
12807424051407b73ed5afbc3eb5081a — AV detection: 41 / 71 (57.75%)