Many variants of the spybot worm (and others) exhibit similar behaviour. It is also possible you have a new variant of something - lucky you. Run HijackThis and post the hijackthis log to this forum and you will be amazed at how welpful we can be. Knowledge is the only armour against new malware variants. Various bits are missed by different AV and Spyware solutions, none of them get everything. You may also want to use a tool like QwikFix to shut some of those IE vulns down before you get more infections.