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.
Ousaban botnet controller located at 13.78.202.41 on port 80 (using HTTP POST):
hXXp://notas-fiscais.com/sala02/soma.php
$ dig +short notas-fiscais.com
13.78.202.41