There is trojan tools for Free BSD, last time i installed they offer the netbus tools and **** right on the CDs. So this isnt out of the question. I think being paranoid is also a good thing. a good admin needs medication for his nerves because hes worried...lol ok its half true but anyway i think you should contact them and ask "hey whats going on i got lusers acessing bad sites and a box fulla openings why?"