I just found out that my IP for this server has been listed with Spamhaus due to a cryptoPHP hack on wordpress. I did some research and am not getting very far. Seems that the infected server is usually compromised through a backdoor exploit in plug ins of wordpress. More and more it seems that Wordpress is a poor choice for CMS just due to how often it gets hacked. Most of the time it is because of some unvetted plugin or some plugin that has an exploit installed in it. It just seems so unsafe. I need to do more research, but here is everything that I've found over CryptoPHP.
P.S. There is a good possibility that the issue is with another site on the server - my account is on a shared IP which means it could be one of thousands of other users on the server. BOOO.