I just had to shut down the ARIZONA POWERSTROKE GROUP forum (vBulletin site) due to an apparent infiltration. From what I'm seeing on vBulletin.com, this is hitting all over the place.
Make sure your "anti-virus" and "anti-malware" are up-to-date!!! My computer and a few of the APG members were protected by current software and not infected or re-directed by this hack. We were notified by the software that something was not right and were able to get the site shutdown and a clean-up in progress with no known issues. If you are surfing any vBulletin forum sites without some kind of protection, you are risking issues!
Here are a few links for the admins:
HOPE THIS HELPS OTHER AVOID ANY TROUBLES!!!