j'ai un virus je crois

bonjour à tous,

J'ai contracté un virus je crois. Je m'en suis rendu compte dans msn messenger alors que mes fenêtres de chat se fermaient toutes seules.

Je suis néophyte alors j'aurais besoin d'aide. J'ai suivi le chemin tracé par d'autres avant moi et je me suis rendu le plus possible.
J'ai effectué un scan avec hackthis, voici le résultat:

Logfile of HijackThis v1.99.1
Scan saved at 19:54:07, on 2007-01-27
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\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\PavProt.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
c:\program files\fichiers communs\logitech\lvmvfm\LVPrcSrv.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\PavFnSvr.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\Pavkre.exe
C:\Program Files\Fichiers communs\Panda Software\PavShld\pavprsrv.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\prevsrv.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\PsImSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\dllhost.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\apvxdwin.exe
C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\WebProxy.exe
C:\WINDOWS\ehome\ehtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\LVCOMSX.EXE
C:\Program Files\Logitech\Video\CameraAssistant.exe
C:\WINDOWS\system32\ElkCtrl.exe
C:\Program Files\D-Tools\daemon.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Logitech\Video\VideoEffectsWatcher.exe
C:\Documents and Settings\default\Bureau\Scanner.exe.exe

R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = www.radio-canada.ca
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://es.rd.yahoo.com/customize/ie/defaults/su/msgr8/*http://es.search.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_10\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
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [SigmatelSysTrayApp] sttray.exe
O4 - HKLM\..\Run: [IntelAudioStudio] "C:\Program Files\Intel Audio Studio\IntelAudioStudio.exe" TRAY
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe"
O4 - HKLM\..\Run: [ATICCC] "C:\Program Files\ATI Technologies\ATI.ACE\cli.exe" runtime -Delay
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [APVXDWIN] "C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\APVXDWIN.EXE" /s
O4 - HKLM\..\Run: [USIUDF_Eject_Monitor] C:\Program Files\Fichiers communs\Ulead Systems\DVD\USISrv.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [RoxioDragToDisc] "C:\Program Files\Roxio\Easy Media Creator 7\Drag to Disc\DrgToDsc.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [LogitechCameraAssistant] C:\Program Files\Logitech\Video\CameraAssistant.exe
O4 - HKLM\..\Run: [LogitechVideo[inspector]] C:\Program Files\Logitech\Video\InstallHelper.exe /inspect
O4 - HKLM\..\Run: [LogitechCameraService(E)] C:\WINDOWS\system32\ElkCtrl.exe /automation
O4 - HKLM\..\Run: [CieTest] C:\Program Files\UNI\UNI_r.exe
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\D-Tools\daemon.exe" -lang 1033
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin...
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common...
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst....
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
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.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: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Logitech Process Monitor (LVPrcSrv) - Logitech Inc. - c:\program files\fichiers communs\logitech\lvmvfm\LVPrcSrv.exe
O23 - Service: Panda Function Service (PAVFNSVR) - Panda Software - C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\PavFnSvr.exe
O23 - Service: Panda Pavkre (Pavkre) - Panda Software - C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\Pavkre.exe
O23 - Service: Panda PavProt (PavProt) - Panda Software - C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\PavProt.exe
O23 - Service: Panda Process Protection Service (PavPrSrv) - Panda Software - C:\Program Files\Fichiers communs\Panda Software\PavShld\pavprsrv.exe
O23 - Service: Panda Preventium+ Service (PREVSRV) - Panda Software - C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\prevsrv.exe
O23 - Service: Panda IManager Service (PSIMSVC) - Panda Software Internacional - C:\Program Files\Panda Software\Panda TruPrevent Personal 2005\PsImSvc.exe
O23 - Service: Ulead Burning Helper (UleadBurningHelper) - Unknown owner - C:\Program Files\Fichiers communs\Ulead Systems\DVD\ULCDRSvr.exe (file missing)
O23 - Service: Carte de performance WMI (WmiApSrv) - Unknown owner - C:\WINDOWS\system32\wbem\wmiapsrv.exe (file missing)
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Rendu à cette étape, je ne sais plus quoi faire.

Je vous remercie à l'avance pour votre aide,

Gentlemanpat