One machine on our network became infected with something I'm still not exactly sure has been identified. The XP desktop that was infected would not boot at all until after I found an E-E Accepted Solution for question ID 24030581 that recommended the use of ComboFix. Now the machine is booting up but I'm not convinced all of the infections have been remedied. In fact, when visiting www.avg.com
the page says "18 Trojans detected" and then the browser shuts down. The MS Windows Updates page is no longer showing an alert and Symantec's Norton Anti-Virus is saying all is well.
Per the How-to-use-combofix instructions I've attached the Combofix.txt log report as well as a Hijackthis log. Please advise how I can be sure everything is cured on this machine, as well as how I can determine exactly how it got infected. I'm very concerned that other systems and servers could be affected since this infection was a total surprise! I logged off at the end of the day with nothing unusual happening and came in the next morning to a machine with all kinds of browser windows and windows explorer windows opened and no explanation.