Beats me? Rather than say "oh AARoads is a virus producer!" Why not alert me to it so I can deal with it or get some assistance on it otherwise. Getting hacked is just part of hosting a web site these days, it happens from time to time.
Usually when there is a server hack or a threat, I generally get an email from my hosting company, or from one of the members here alerting me to the issue. I did cursory review of the server and found one file that changed yesterday with the forum s/w. Will run it by James to see if may be the problem. Otherwise I have found nothing out of the ordinary thus far.