comment supprimer mon virus?

Bonjour,
J'ai attrappé un virus sur mon ordinateur. Un trojan apparement qui est situé sur ma carte graphique.
Win32NSchanger_VJ [Trj]
Win32:Trojan-gen
Mon pc s'arrete automatiquement au demarage apres 30s avec un message d'erreur puis ecran bleu.
En mode sans echec j'ai pu localiser le fait que qd je desactive au demarage le 'truc' appelé ATI\.....\cli.exe , mon ordinateur demare alors normallement sans s'eteindre (en mode normal).
Du coup j'ai fait une analise ac Hitjack et voici le rapport

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21:53:46, on 25/11/1998
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)
Boot mode: Normal

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\TOSHIBA\Utilitaire de zoom TOSHIBA\SmoothView.exe
C:\Program Files\Logitech\Video\LogiTray.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\WINDOWS\system32\LVComsX.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\Program Files\TOSHIBA\Tvs\TvsTray.exe
C:\WINDOWS\system32\TPSMain.exe
C:\Program Files\Toshiba\Toshiba Applet\thotkey.exe
C:\Program Files\TOSHIBA\Commandes TOSHIBA\TFncKy.exe
C:\WINDOWS\system32\TDispVol.exe
C:\Program Files\Logitech\Video\FxSvr2.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Search Settings\SearchSettings.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\TPSBattM.exe
C:\Program Files\Synaptics\SynTP\Toshiba.exe
C:\WINDOWS\system32\prunnet.exe
C:\Program Files\TOSHIBA\ConfigFree\NDSTray.exe
C:\WINDOWS\System32\DLA\DLACTRLW.EXE
C:\Program Files\TOSHIBA\ConfigFree\CFSServ.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe­
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\system32\RAMASST.exe
C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe
C:\Documents and Settings\pierre\Bureau\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost;*.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: (no name) - {73259091-9574-4ED8-A40F-7F65AFC28634} - C:\WINDOWS\system32\urqnmJBq.dll (file missing)
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
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\3.1.807.1746\swg.dll
O2 - BHO: SearchSettings Class - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - C:\Program Files\Search Settings\kb125\SearchSettings.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKLM\..\Run: [SmoothView] C:\Program Files\TOSHIBA\Utilitaire de zoom TOSHIBA\SmoothView.exe
O4 - HKLM\..\Run: [LogitechVideoTray] C:\Program Files\Logitech\Video\LogiTray.exe
O4 - HKLM\..\Run: [LogitechVideoRepair] C:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [Tvs] C:\Program Files\TOSHIBA\Tvs\TvsTray.exe
O4 - HKLM\..\Run: [TPSMain] TPSMain.exe
O4 - HKLM\..\Run: [THotkey] C:\Program Files\Toshiba\Toshiba Applet\thotkey.exe
O4 - HKLM\..\Run: [TFncKy] TFncKy.exe
O4 - HKLM\..\Run: [TDispVol] TDispVol.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SearchSettings] C:\Program Files\Search Settings\SearchSettings.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [prunnet] "C:\WINDOWS\system32\prunnet.exe"
O4 - HKLM\..\Run: [NI.GSCNS] "C:\DOCUME~1\pierre\LOCALS~1\Temp\winvsnet.tmp"
O4 - HKLM\..\Run: [NDSTray.exe] NDSTray.exe
O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [DLA] C:\WINDOWS\System32\DLA\DLACTRLW.EXE
O4 - HKLM\..\Run: [CFSServ.exe] CFSServ.exe -NoClient
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKCU\..\Run: [TOSCDSPD] C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
O4 - HKCU\..\Run: [LogitechSoftwareUpdate] "C:\Program Files\Logitech\Video\ManifestEngine.exe" boot
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [updateMgr] "C:\Program Files\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe" AcRdB7_0_9 -reboot 1
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [LDM] C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
O4 - HKCU\..\Run: [prunnet] "C:\WINDOWS\system32\prunnet.exe"
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE R…SEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: Lancement rapide de Microsoft Office OneNote 2003.lnk = C:\Program Files\Microsoft Office\OFFICE11\ONENOTEM.EXE
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: RAMASST.lnk = C:\WINDOWS\system32\RAMASST.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O15 - Trusted Zone: *.amaena.com
O15 - Trusted Zone: *.antimalwareguard.com
O15 - Trusted Zone: *.antispyexpert.com
O15 - Trusted Zone: *.avsystemcare.com
O15 - Trusted Zone: *.gomyhit.com
O15 - Trusted Zone: *.imagesrvr.com
O15 - Trusted Zone: *.onerateld.com
O15 - Trusted Zone: *.safetydownload.com
O15 - Trusted Zone: *.spyguardpro.com
O15 - Trusted Zone: *.storageguardsoft.com
O15 - Trusted Zone: *.trustedantivirus.com
O15 - Trusted Zone: *.virusremover2008.com
O15 - Trusted Zone: *.virusschlacht.com
O15 - Trusted Zone: *.amaena.com (HKLM)
O15 - Trusted Zone: *.antimalwareguard.com (HKLM)
O15 - Trusted Zone: *.antispyexpert.com (HKLM)
O15 - Trusted Zone: *.avsystemcare.com (HKLM)
O15 - Trusted Zone: *.gomyhit.com (HKLM)
O15 - Trusted Zone: *.imageservr.com (HKLM)
O15 - Trusted Zone: *.imagesrvr.com (HKLM)
O15 - Trusted Zone: *.onerateld.com (HKLM)
O15 - Trusted Zone: *.safetydownload.com (HKLM)
O15 - Trusted Zone: *.spyguardpro.com (HKLM)
O15 - Trusted Zone: *.storageguardsoft.com (HKLM)
O15 - Trusted Zone: *.trustedantivirus.com (HKLM)
O15 - Trusted Zone: *.virusremover2008.com (HKLM)
O15 - Trusted Zone: *.virusschlacht.com (HKLM)
O18 - Protocol: bwfile-8876480 - {9462A756-7B47-47BC-8C80-C34B9B80B32B} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\GAPlugProtocol-8876480.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: urqnmJBq - urqnmJBq.dll (file missing)
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: ConfigFree Service (CFSvcs) - TOSHIBA CORPORATION - C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Program Files\Fichiers communs\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: TOSHIBA Application Service (TAPPSRV) - TOSHIBA Corp. - C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe
End of file - 11464 bytes

Quelqu'un peut il m'aider a resoudre mon probleme car je ne sais pas comment m'y prendre pour cela.

Merci bcp d'avance