This is a browser Hijack. You can start here http://www.pchell.com/support/aboutblank.shtml, a Google search for about:blank returns 341,000 hits, that was just one of them. Google is your friend learn how to use it.

If you haven’t already got this software, you should it’s freeware.

  1. Ad-Aware
  2. Spybot Search and Destroy
  3. Download HijackThis.zip