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.
Metamorfo botnet controller located at 52.142.190.146 on port 80 (using HTTP POST):
hXXp://loa2.kicks-ass.net/03/postUP.php
$ dig +short loa2.kicks-ass.net
52.142.190.146
Referencing malware binaries (MD5 hash):
31926fdcac41cb5aae17a0e57783c4a2 — AV detection: 11 / 56 (19.64)