I know for a fact there is no virus/malware/spyware on my PC because this happened while I was in the middle of playing a game. I had AVG run scan, but it didn't find anything, I haven't downloaded/torrented anything for the past few days and my visits to the internet today have happened rarely. I've read online that this is Security Center's way of getting you to get the full version >>
Here's a HijackThis! logfile;
Logfile of Trend Micro HijackThis v2.0.2 Scan saved at 10:16:50 PM, on 3/6/2010 Platform: Windows XP SP3 (WinNT 5.01.2600) MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512) Boot mode: Normal Running processes: C:\WINDOWS\System32\smss.exe C:\WINDOWS\system32\winlogon.exe C:\WINDOWS\system32\services.exe C:\WINDOWS\system32\lsass.exe C:\WINDOWS\system32\nvsvc32.exe C:\WINDOWS\system32\svchost.exe C:\WINDOWS\System32\svchost.exe C:\WINDOWS\system32\svchost.exe C:\Program Files\AVG\AVG9\avgchsvx.exe C:\Program Files\AVG\AVG9\avgrsx.exe C:\Program Files\AVG\AVG9\avgcsrvx.exe C:\WINDOWS\system32\spoolsv.exe C:\Program Files\AVG\AVG9\avgwdsvc.exe C:\Program Files\LogMeIn Hamachi\hamachi-2.exe C:\Program Files\Java\jre6\bin\jqs.exe C:\Program Files\AVG\AVG9\avgnsx.exe C:\WINDOWS\system32\PnkBstrA.exe C:\WINDOWS\system32\PnkBstrB.exe C:\Program Files\AVG\AVG9\avgemc.exe C:\Program Files\AVG\AVG9\avgcsrvx.exe C:\WINDOWS\Explorer.EXE C:\Documents and Settings\Administrator\Local Settings\Application Data\av.exe C:\Program Files\Intel\NCS\PROSet\PRONoMgr.exe C:\WINDOWS\SOUNDMAN.EXE C:\Program Files\Java\jre6\bin\jusched.exe C:\Program Files\Winamp\winampa.exe C:\Program Files\Windows Live\Messenger\msnmsgr.exe C:\Program Files\Steam\Steam.exe C:\Program Files\uTorrent\uTorrent.exe C:\WINDOWS\system32\RUNDLL32.EXE C:\Program Files\OpenOffice.org 3\program\soffice.exe C:\Program Files\OpenOffice.org 3\program\soffice.bin C:\Program Files\ATI Technologies\ATI.ACE\cli.exe C:\Program Files\Java\jre6\bin\jucheck.exe C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Trend Micro\HijackThis\HijackThis.exe R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = [url="http://www.ask.com/?o=15153&l=dis"]http://www.ask.com/?o=15153&l=dis[/url] O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll O2 - BHO: MultiShop v2.0 - {39AA6D29-4236-4F25-A36A-3410EF5283D9} - C:\PROGRA~1\PIVIMM~1\MULTIS~1.DLL O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll O2 - BHO: Java Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll O2 - BHO: Ask Toolbar BHO - {D4027C7F-154A-4066-A1AD-4243D8127440} - C:\Program Files\Ask.com\GenericAskToolbar.dll O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll O3 - Toolbar: Ask Toolbar - {D4027C7F-154A-4066-A1AD-4243D8127440} - C:\Program Files\Ask.com\GenericAskToolbar.dll O4 - HKLM\..\Run: [PRONoMgr.exe] C:\Program Files\Intel\NCS\PROSet\PRONoMgr.exe O4 - HKLM\..\Run: [ATICCC] "C:\Program Files\ATI Technologies\ATI.ACE\cli.exe" runtime -Delay O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe" O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe" O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe" O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files\Winamp\winampa.exe" O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background O4 - HKCU\..\Run: [uTorrent] "C:\Program Files\uTorrent\uTorrent.exe" O4 - HKCU\..\Run: [Steam] "C:\Program Files\Steam\Steam.exe" -silent O4 - Startup: OpenOffice.org 3.1.lnk = C:\Program Files\OpenOffice.org 3\program\quickstart.exe O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_96D6FF0C6D236BF8.dll/cmsidewiki.html O9 - Extra button: MultiShop v2.0 - {39AA6D29-4236-4F25-A36A-3410EF5283D9} - C:\PROGRA~1\PIVIMM~1\MULTIS~1.DLL O9 - Extra 'Tools' menuitem: MultiShop v2.0 - {39AA6D29-4236-4F25-A36A-3410EF5283D9} - C:\PROGRA~1\PIVIMM~1\MULTIS~1.DLL O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\System32\Ati2evxx.exe O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe O23 - Service: AVG Free E-mail Scanner (avg9emc) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgemc.exe O23 - Service: AVG Free WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe O23 - Service: LogMeIn Hamachi 2.0 Tunneling Engine (Hamachi2Svc) - LogMeIn Inc. - C:\Program Files\LogMeIn Hamachi\hamachi-2.exe O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe O23 - Service: Intel NCS NetService (NetSvc) - Intel® Corporation - C:\Program Files\Intel\NCS\Sync\NetSvc.exe O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe O23 - Service: PnkBstrB - Unknown owner - C:\WINDOWS\system32\PnkBstrB.exe -- End of file - 6062 bytes