Nouveau Hijack

Bonjour
je post à nouveau le rapport Hijack il doit bien y avoir quelque chose de mauvais là dedans, le pc rame énormément au démarrage :

Logfile of HijackThis v1.99.1
Scan saved at 13:05:31, on 12/05/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\Fichiers communs\Symantec Shared\ccSvcHst.exe
D:\WINDOWS\Explorer.EXE
D:\Program Files\Fichiers communs\Symantec Shared\AppCore\AppSvc32.exe
D:\WINDOWS\system32\spoolsv.exe
D:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
D:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe
D:\WINDOWS\system32\nvsvc32.exe
D:\WINDOWS\system32\svchost.exe
D:\PROGRA~1\Maxtor\OneTouch\Utils\OneTouch.exe
D:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
D:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
D:\Program Files\MSN Messenger\msnmsgr.exe
D:\Program Files\Fichiers communs\Ahead\Lib\NMBgMonitor.exe
D:\Program Files\Fichiers communs\Ahead\Lib\NMIndexStoreSvr.exe
D:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
D:\Program Files\Internet Explorer\iexplore.exe
D:\Program Files\Hijackthis Version Française\abc.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://fr.yahoo.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {1E8A6170-7264-4D0F-BEAE-D42A53123C75} - D:\Program Files\Fichiers communs\Symantec Shared\coShared\Browser\1.5\NppBho.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O3 - Toolbar: Show Norton Toolbar - {90222687-F593-4738-B738-FBEE9C7B26DF} - D:\Program Files\Fichiers communs\Symantec Shared\coShared\Browser\1.5\UIBHO.dll
O4 - HKLM\..\Run: [MaxtorOneTouch] D:\PROGRA~1\Maxtor\OneTouch\Utils\OneTouch.exe
O4 - HKLM\..\Run: [NeroFilterCheck] D:\Program Files\Fichiers communs\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [PinnacleDriverCheck] D:\WINDOWS\system32\\PSDrvCheck.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE D:\WINDOWS\system32\NvCpl.dll,NvStartup
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: [ccApp] "D:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [osCheck] "D:\Program Files\Norton Internet Security\osCheck.exe"
O4 - HKLM\..\Run: [Symantec PIF AlertEng] "D:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /a /m "D:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\AlertEng.dll"
O4 - HKCU\..\Run: [msnmsgr] "D:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "D:\Program Files\Fichiers communs\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [ygyx1kv] D:\DOCUME~1\CASTIN~1.COM\LOCALS~1\Temp\crasos.exe
O4 - Global Startup: Adobe Gamma.lnk = D:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.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: 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
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - https://www.kaspersky.fr/?domain=webscanner.kaspersky.fr
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan_fr/scan8/oscan8.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "D:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - Winlogon Notify: WgaLogon - D:\WINDOWS\
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - D:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - D:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Unknown owner - D:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe" /h ccCommon (file missing)
O23 - Service: Symantec Settings Manager (ccSetMgr) - Unknown owner - D:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe" /h ccCommon (file missing)
O23 - Service: Symantec Lic NetConnect service (CLTNetCnService) - Unknown owner - D:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe" /h cltCommon (file missing)
O23 - Service: COM Host (comHost) - Symantec Corporation - D:\Program Files\Fichiers communs\Symantec Shared\VAScanner\comHost.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - D:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Symantec IS Password Validation (ISPwdSvc) - Symantec Corporation - D:\Program Files\Norton Internet Security\isPwdSvc.exe
O23 - Service: LiveUpdate - Symantec Corporation - D:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: LiveUpdate Notice Service Ex (LiveUpdate Notice Ex) - Unknown owner - D:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe" /h ccCommon (file missing)
O23 - Service: LiveUpdate Notice Service - Unknown owner - D:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /m "D:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PifEng.dll (file missing)
O23 - Service: Macromedia Licensing Service - Unknown owner - D:\Program Files\Fichiers communs\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: NBService - Nero AG - D:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - D:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - D:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Planificateur LiveUpdate automatique - Symantec Corporation - D:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - D:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Symantec AppCore Service (SymAppCore) - Symantec Corporation - D:\Program Files\Fichiers communs\Symantec Shared\AppCore\AppSvc32.exe

Merci de bien vouloir me répondre les amis
Alex