Ordi infestée de l'aide S.V.P

Allo J'ai de sérieux problemes mon ordi est infectée .je recois pleins d,alerte de Avast mais ne peux rien faire .Je vous envoie monrapport hijack ,si quelqu'un peut m,aider ca serait super merci a l'avanceLogfile of HijackThis v1.99.1
Scan saved at 21:17:31, on 2005-07-21
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Winamp\winampa.exe
C:\WINDOWS\system32\drivers\CDAC11BA.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\system32\spupdsvc.exe
C:\Program Files\Information Update\iu.exe
C:\Program Files\Ahead\InCD\InCD.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\system32\poker3.exe
C:\Program Files\ProSiteFinder\prositefinder.exe
C:\Program Files\SurfAccuracy\SAcc.exe
C:\Program Files\Media Access\MediaAccK.exe
C:\Program Files\Media Access\MediaAccess.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
c:\windows\system32\yxcbsnf.exe
C:\WINDOWS\system32\poker3.exe
C:\PROGRA~1\Webshots\webshots.scr
C:\WINDOWS\system32\cmd.exe
C:\Program Files\Fichiers communs\services.exe
C:\WINDOWS\system32\spnpinst.exe
C:\WINDOWS\system32\Sysocmgr.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\ProSiteFinder\prositefinderh.exe
C:\Program Files\ProSiteFinder\prositefinder.exe
C:\Documents and Settings\Louise\ff.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\cmd.exe
C:\Program Files\Fichiers communs\services.exe
C:\Program Files\WinFixer 2005\WFX5.exe
C:\Documents and Settings\Louise\index.exe
C:\DOCUME~1\Louise\LOCALS~1\Temp\RarSFX3\vonner.exe
C:\WINDOWS\system32\cmd.exe
C:\Documents and Settings\Louise\ff.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Louise\Bureau\Hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.tqs.ca/accueil/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://sympatico.msn.ca/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {00000000-0000-4A6D-B847-7DD883F374D3} - C:\Program Files\ProSiteFinder\ProSiteFinder.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: Shorty - {11A4CA8C-A8B9-49c2-A6D3-3F64C9EEBAE6} - C:\Program Files\DNS\Catcher.dll
O2 - BHO: AuroraHandlerObj Class - {4AA870AC-8427-42a4-B92E-ECD956197489} - C:\WINDOWS\AuroraHandler.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: ISTbar - {FAA356E4-D317-42a6-AB41-A3021C6E7D52} - C:\Program Files\ISTbar\istbarcm.dll
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Information Update] C:\Program Files\Information Update\iu.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Microsoft Windows DLL Services Configuration] poker3.exe
O4 - HKLM\..\Run: [ProSiteFinder] C:\Program Files\ProSiteFinder\prositefinder.exe
O4 - HKLM\..\Run: [SurfAccuracy] C:\Program Files\SurfAccuracy\SAcc.exe
O4 - HKLM\..\Run: [Media Access] C:\Program Files\Media Access\MediaAccK.exe
O4 - HKLM\..\Run: [lwwoucf] c:\windows\system32\yxcbsnf.exe r
O4 - HKLM\..\Run: [WinFixer 2005] C:\Program Files\WinFixer 2005\wfx5.exe
O4 - HKLM\..\RunServices: [Microsoft Windows DLL Services Configuration] poker3.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [Microsoft Windows DLL Services Configuration] poker3.exe
O4 - HKCU\..\Run: [DNS] C:\Program Files\Fichiers communs\mc-58-12-0000080.exe
O4 - Startup: Webshots.lnk = C:\Program Files\Webshots\Launcher.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: &Google Search - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=34738&clcid=0x409
O16 - DPF: {288C5F13-7E52-4ADA-A32E-F5BF9D125F99} (CR64Loader Object) - http://www.miniclip.com/zenpuzzlegarden/miniclipGameLoader.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1117136424517
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) - http://abcdelasecurite.free.fr/scan/Msie/bitdefender.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {99410CDE-6F16-42ce-9D49-3807F78F0287} (ClientInstaller Class) - http://www.180searchassistant.com/180saax.cab
O16 - DPF: {A3009861-330C-4E10-822B-39D16EC8829D} (CRAVOnline Object) - http://www.ravantivirus.com/scan/ravonline.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://zone.msn.com/binFramework/v10/ZIntro.cab34246.cab
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE

Merci