The problem that you had was that those applications you were using to remove Vundo did not remove Vundo all the way. If Vundo is damaged, it can repair itself. There are very few that are able to remove Vundo completely. Vundo is a dangerous trojan horse.
I see that you did use MalwareBytes' Anti-Malware which is good. One thing to remember also is that when a bad software program is removed, your computer should be restarted. When registry keys are modified (when bad software gets removed), the registry keys remain unchanged until the computer restarts.
Edited by Jay-P VIP, 29 December 2008 - 08:31 PM.