Interpréter rapport hijackthis (urgent)

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voici le rapport de hijackthis

Logfile of HijackThis v1.99.1
Scan saved at 08:27:46, on 03/09/2007
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
D:\Ghass_soft\AVAST\aswUpdSv.exe
D:\Ghass_soft\AVAST\ashServ.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
D:\GHASS_~1\AVAST\ashDisp.exe
C:\WINDOWS\sm56hlpr.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\WINDOWS\system32\spoolsv.exe
D:\Ghass_soft\AVAST\ashMaiSv.exe
D:\Ghass_soft\AVAST\ashWebSv.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
D:\Ghass_soft\Acrobat 7.0\Reader\AcroRd32.exe
C:\WINDOWS\system32\wuauclt.exe
D:\HIJACKTHIS\Hijackthis_FR\VERSION TRADUITE ORIGINALE.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://fr.yahoo.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Ghass_soft\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE -startup
O4 - HKLM\..\Run: [avast!] D:\GHASS_~1\AVAST\ashDisp.exe
O4 - HKLM\..\Run: [SMSERIAL] sm56hlpr.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = D:\Ghass_soft\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: &Download with &DAP - D:\Ghass_soft\DAP\dapextie.htm
O8 - Extra context menu item: &Windows Live Search - res://C:\Program Files\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Download &all with DAP - D:\Ghass_soft\DAP\dapextie2.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O16 - DPF: Win32 Classes -
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/...
O17 - HKLM\System\CCS\Services\Tcpip\..\{15DE0819-88FE-42E7-88B3-0155698A66D2}: NameServer = 193.95.66.10 193.95.94.40
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - D:\Ghass_soft\AVAST\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - D:\Ghass_soft\AVAST\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - D:\Ghass_soft\AVAST\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - D:\Ghass_soft\AVAST\ashWebSv.exe" /service (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe

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