The host at this IP address 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 18.222.122.216 on port 80 (using HTTP POST):
hXXp://18.222.122.216/Contador/serv.php
$ nslookup 18.222.122.216
ec2-18-222-122-216.us-east-2.compute.amazonaws.com