System restore is not the way to remove an infection. but there is hope… post in the virus removal topic here at this forum http://forum.avast.com/index.php?board=4.0 . a member named “essexboy” is an expert at stuff like this.

in the meantime, you can try a scan with malwarebytes http://www.malwarebytes.org/

its free, just decline the trial after installation. be sure not to delete your scan log, as essexboy may need that info. good luck!