Problemes Virus

Bonjour   voila je post ici mon rapport hijackthis car depusi 2/3 jours mon pc fait un peu n'importe quoi , comme des ecran bleu, plantage durant un scan d'avast (comme par hasard) ou encore l'impossibilité d'acceder a l'utilitaire d'ajout/suppression de programmes   donc j'en deduis que cela doit etre du surement a un ou plusieurs virus, voila !! merci de m'aider  

ps : ci dessous le rapport hijackthis

Logfile of HijackThis v1.99.1
Scan saved at 17:27:25, on 29/04/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16414)

Running processes:
D:\WINDOWS\System32\smss.exe
D:\WINDOWS\system32\winlogon.exe
D:\WINDOWS\system32\services.exe
D:\WINDOWS\system32\lsass.exe
D:\WINDOWS\system32\svchost.exe
D:\WINDOWS\System32\svchost.exe
D:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
D:\Program Files\Alwil Software\Avast4\ashServ.exe
D:\WINDOWS\system32\spoolsv.exe
D:\WINDOWS\ATKKBService.exe
D:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
D:\WINDOWS\System32\nvsvc32.exe
D:\WINDOWS\System32\svchost.exe
D:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
D:\Program Files\Alwil Software\Avast4\ashWebSv.exe
D:\WINDOWS\Explorer.EXE
D:\Program Files\Razer\Copperhead\razerhid.exe
D:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
D:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
D:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
D:\WINDOWS\SOUNDMAN.EXE
D:\Program Files\iTunes\iTunesHelper.exe
D:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
D:\WINDOWS\system32\ctfmon.exe
D:\Program Files\Razer\Copperhead\razertra.exe
D:\Program Files\Razer\Copperhead\razerofa.exe
D:\Program Files\Google\Google Desktop Search\GoogleDesktopIndex.exe
D:\Program Files\iPod\bin\iPodService.exe
D:\Program Files\Google\Google Desktop Search\GoogleDesktopDisplay.exe
D:\WINDOWS\BricoPacks\Vista Inspirat\YzToolbar\YzToolBar.exe
D:\Program Files\MSN Messenger\msnmsgr.exe
D:\Program Files\MSN Messenger\usnsvc.exe
D:\PROGRA~1\MOZILL~1\FIREFOX.EXE
D:\Program Files\Winamp\winamp.exe
D:\Program Files\WinRAR\WinRAR.exe
D:\Documents and Settings\Théo\Mes documents\Telechargements\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - D:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - d:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - d:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Copperhead] D:\Program Files\Razer\Copperhead\razerhid.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE D:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE D:\WINDOWS\System32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SunJavaUpdateSched] "D:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\Run: [avast!] D:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [WinampAgent] D:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [NVMixerTray] "D:\Program Files\NVIDIA Corporation\NvMixer\NVMixerTray.exe"
O4 - HKLM\..\Run: [TkBellExe] "D:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [QuickTime Task] "D:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "D:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [Google Desktop Search] "D:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\RunOnce: [PackFolders] D:\WINDOWS\BricoPackFoldersDelete.cmd
O4 - HKCU\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "D:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\RunOnce: [PackInstall] D:\DOCUME~1\THO~1\LOCALS~1\Temp\Rar$EX00.078\Pack_Vista_Inspirat_1.1.exe
O4 - Global Startup: Adobe Reader Synchronizer.lnk = D:\Program Files\Adobe\Reader 8.0\Reader\AdobeCollabSync.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = D:\Program Files\Adobe\Reader 8.0\Reader\reader_sl.exe
O4 - Global Startup: Outil de mise à jour Google.lnk = D:\Program Files\Google\Google Updater\GoogleUpdater.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls...
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - D:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - D:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - AppInit_DLLs: D:\PROGRA~1\Google\GOOGLE~2\GOEC62~1.DLL
O20 - Winlogon Notify: WgaLogon - D:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - D:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - D:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: ATK Keyboard Service (ATKKeyboardService) - ASUSTeK COMPUTER INC. - D:\WINDOWS\ATKKBService.exe
O23 - Service: avast! Antivirus - ALWIL Software - D:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: GoogleDesktopManager - Google - D:\Program Files\Google\Google Desktop Search\GoogleDesktopManager.exe
O23 - Service: Google Updater Service (gusvc) - Google - D:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - D:\Program Files\iPod\bin\iPodService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - D:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Spyware Doctor Auxiliary Service (sdAuxService) - PC Tools - D:\Program Files\Spyware Doctor\svcntaux.exe
O23 - Service: Spyware Doctor Service (sdCoreService) - PC Tools - D:\Program Files\Spyware Doctor\swdsvc.exe