My laptop was recently infected. At first I was getting fake virus alerts. I found 3 new .exe files that had been downloaded, and got rid of them. The virus alerts stopped, but now when I google something and click on one of the listed items, I'm redirected to spurious sites. Sometimes I get random audio playing. I was unable to run any antivirus scan apart from ad-aware, nor could I get system restore to run (something was stopping it). Ad-aware warned me it had found win32trojantdss but it couldn't remove it. Eventually with the help of a forum member I got malwarebytes to run. It found and removed lots of infections but there is one left, c:windows\system32\uacinit.dll. After rebooting I still get the browser redirection problem. Here's the Hijackthis log:
Logfile of Trend Micro HijackThis v2.0.2 Scan saved at 13:19:57, on 22/06/2009 Platform: Windows XP SP2 (WinNT 5.01.2600) MSIE: Internet Explorer v7.00 (7.00.6000.16850) Boot mode: Normal