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 137.117.100.173 on port 36513 TCP:
$ telnet 137.117.100.173 36513
Trying 137.117.100.173…
Connected to 137.117.100.173.
Escape character is ‘^]’
Referencing malware samples (MD5 hash):
a92393ed590a3d90bf8ec8f1dfa4433f — AV detection: 32 / 67 (47.76%)