Tavish's suggestion is a very good one. Whenever something I don't recognize pops up, I google for it, and it usually comes up within the first two pages of hits.
If you're truly being hijacked by a parasite program, try running HijackThis! (it used to be spelled this way).
You can find it on Majorgeeks.com
It's a sophisticated program. I think there is the real possibility to damage your system if you're not careful. Fortunately, the site does a good job of helping you through the problems, and there are plenty of posts on tech forums to help. I used HijackThis! to clean up a friends computer who had a redirect problem to an advertisement site when she launched IE. Took me several hours, but was quite satisfied when I got it to work.
Hope this helps.