Besoin d'aide pour combattre Trojan

Bonjour a toutes et à tous,
Volià je pense avoir un trojan: Dès que j'ouvre une application, une fenêtre s'ouvre automatiquement pour me dire ceci:
"Attention pc!
Some dangerous viruses in your system.
Microsoft XP files corrupted.
This may lead to the destruction of important files in C:\Windows.Download protection software now!
click "OK" to download the antispyware (recommended).

J'ai fait un scan avec Hijackthis. Je vous fait parvenir le rapport de celui-ci ci dessous:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 13:28:18, on 01/10/2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.17184)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
C:\Program Files\Fichiers communs\Logitech\Bluetooth\LBTSERV.EXE
C:\WINDOWS\Explorer.EXE
C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\a-squared Free\a2service.exe
C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Logitech\SetPoint\LBTWiz.exe
C:\Program Files\Logitech\Easy Synchronization\LogitechEasySync.exe
C:\WINDOWS\osd.exe
C:\WINDOWS\Resources\Themes\VistaXP\glass\Glass2k.exe
C:\Program Files\Microsoft ActiveSync\wcescomm.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Fichiers communs\Ahead\Lib\NMBgMonitor.exe
C:\WINDOWS\Resources\Themes\VistaXP\y3d\Yodm3D.exe
C:\Program Files\VisualTaskTips\VisualTaskTips.exe
C:\Program Files\WIDCOMM\Bluetooth Software\BTTray.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Google\Google Updater\GoogleUpdater.exe
C:\WINDOWS\BricoPacks\Vista Inspirat 2\RocketDock\RocketDock.exe
C:\WINDOWS\BricoPacks\Vista Inspirat 2\UberIcon\UberIcon Manager.exe
C:\WINDOWS\BricoPacks\Vista Inspirat 2\YzShadow\YzShadow.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\CTsvcCDA.EXE
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\Program Files\Fichiers communs\Logitech\khalshared\KHALMNPR.EXE
C:\PROGRA~1\MICROS~2\rapimgr.exe
C:\Program Files\Logitech\Easy Synchronization\servicestub.exe
C:\Program Files\Eset\nod32krn.exe
C:\Program Files\Logitech\Easy Synchronization\LogitechEasySync.exe
C:\PROGRA~1\WIDCOMM\BLUETO~1\BTSTAC~1.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\CyberLink\Shared files\RichVideo.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
C:\Program Files\Fichiers communs\Ahead\Lib\NMIndexStoreSvr.exe
C:\Program Files\ESET\nod32kui.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Documents and Settings\Utilisateur\Bureau\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Alice ADSL
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\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: LPN.df3 - {5B171109-DED1-4403-90E9-6F7778533B9A} - C:\WINDOWS\system32\gpatbs.dll
O2 - BHO: EoRezoBHO - {64F56FC1-1272-44CD-BA6E-39723696E350} - (no file)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: BHO pour Compagnon Web Encarta - {955BE0B8-BC85-4CAF-856E-8E0D8B610560} - C:\Program Files\Fichiers communs\Microsoft Shared\Encarta Web Companion\ENCWCBAR.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\2.1.1119.1736\swg.dll
O3 - Toolbar: Compagnon Web Encarta - {147D6308-0614-4112-89B1-31402F9B82C4} - C:\Program Files\Fichiers communs\Microsoft Shared\Encarta Web Companion\ENCWCBAR.DLL
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: (no name) - {FE063DB9-4EC0-403e-8DD8-394C54984B2C} - (no file)
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKLM\..\Run: [EM_EXEC] C:\PROGRA~1\MOUSEW~1\SYSTEM\EM_EXEC.EXE
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Program Files\Fichiers communs\Apple\Mobile Device Support\bin\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [Logitech BT Wizard] LBTWiz.exe -silent
O4 - HKLM\..\Run: [Easy Synchronization] C:\Program Files\Logitech\Easy Synchronization\LogitechEasySync.exe
O4 - HKLM\..\Run: [OSD] C:\WINDOWS\osd.exe
O4 - HKLM\..\Run: [VisualTooltip] C:\WINDOWS\Resources\Themes\VistaXP\vt\VisualToolTip.exe
O4 - HKLM\..\Run: [Glass2k] C:\WINDOWS\Resources\Themes\VistaXP\glass\Glass2k.exe
O4 - HKLM\..\Run: [TrojanScanner] C:\Program Files\Trojan Remover\Trjscan.exe /boot
O4 - HKLM\..\RunOnce: [Easy Synchronization] C:\Program Files\Logitech\Easy Synchronization\LogitechEasySync.exe --ports
O4 - HKLM\..\RunOnce: [wextract_cleanup0] rundll32.exe C:\WINDOWS\system32\advpack.dll,DelNodeRunDLL32 "C:\DOCUME~1\UTILIS~1\LOCALS~1\Temp\IXP000.TMP\"
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\wcescomm.exe"
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [NOD32 Control Center GUI] C:\Program Files\ESET\nod32kui.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [Yodm3D] C:\WINDOWS\Resources\Themes\VistaXP\y3d\Yodm3D.exe
O4 - HKCU\..\Run: [VisualTaskTips] C:\Program Files\VisualTaskTips\VisualTaskTips.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 RÉSEAU')
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: RocketDock.lnk = C:\WINDOWS\BricoPacks\Vista Inspirat 2\RocketDock\RocketDock.exe
O4 - Startup: TransBar.lnk = C:\WINDOWS\BricoPacks\Vista Inspirat 2\TransBar\TransBar.exe
O4 - Startup: UberIcon.lnk = C:\WINDOWS\BricoPacks\Vista Inspirat 2\UberIcon\UberIcon Manager.exe
O4 - Startup: Y'z Shadow.lnk = C:\WINDOWS\BricoPacks\Vista Inspirat 2\YzShadow\YzShadow.exe
O4 - Global Startup: AutorunsDisabled
O4 - Global Startup: BTTray.lnk = ?
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger.exe
O4 - Global Startup: Logitech SetPoint.lnk = ?
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Outil de mise à jour Google.lnk = C:\Program Files\Google\Google Updater\GoogleUpdater.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MI1933~1\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Envoyer au périphérique &Bluetooth... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra button: Traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm
O9 - Extra 'Tools' menuitem: Traduire - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm
O9 - Extra button: (no name) - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm
O9 - Extra 'Tools' menuitem: Personnaliser les options de traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Program Files\Fichiers communs\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.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
O9 - Extra button: Traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm (HKCU)
O9 - Extra 'Tools' menuitem: Traduire - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm (HKCU)
O9 - Extra button: (no name) - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm (HKCU)
O9 - Extra 'Tools' menuitem: Personnaliser les options de traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm (HKCU)
O10 - Unknown file in Winsock LSP: c:\program files\spyware doctor\filterlsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\spyware doctor\filterlsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\spyware doctor\filterlsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\spyware doctor\filterlsp.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: NameServer = 208.67.220.220 208.67.222.222
O17 - HKLM\System\CS4\Services\Tcpip\Parameters: NameServer = 208.67.220.220 208.67.222.222
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: NameServer = 208.67.220.220 208.67.222.222
O18 - Protocol: bwfile-8876480 - {9462A756-7B47-47BC-8C80-C34B9B80B32B} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\GAPlugProtocol-8876480.dll
O22 - SharedTaskScheduler: IE Component Categories cache daemon - {553858A7-4922-4e7e-B1C1-97140C1C16EF} - C:\WINDOWS\system32\ieframe.dll
O22 - SharedTaskScheduler: calpastatin - {a0efe2fe-7249-4403-a00b-8be108617c75} - (no file)
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft AB - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Adobe LM Service - Adobe Systems - 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: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Boonty Games - BOONTY - C:\Program Files\Fichiers communs\BOONTY Shared\Service\Boonty.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Logitech Bluetooth Service (LBTServ) - Logitech Inc. - C:\Program Files\Fichiers communs\Logitech\Bluetooth\LBTSERV.EXE
O23 - Service: Logitech Easy Synchronization - Unknown owner - C:\Program Files\Logitech\Easy Synchronization\servicestub.exe
O23 - Service: NBService - Nero AG - C:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
O23 - Service: NOD32 Kernel Service (NOD32krn) - Eset - C:\Program Files\Eset\nod32krn.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Microsoft Office Diagnostics Service (odserv) - Unknown owner - C:\Program Files\Fichiers communs\Microsoft Shared\OFFICE12\ODSERV.EXE (file missing)
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared files\RichVideo.exe
O23 - Service: SiSoftware Database Agent Service (SandraDataSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite 2007.SP1\Win32\RpcDataSrv.exe
O23 - Service: SiSoftware Sandra Agent Service (SandraTheSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite 2007.SP1\RpcSandraSrv.exe
O23 - Service: Spyware Doctor Auxiliary Service (sdAuxService) - Unknown owner - C:\Program Files\Spyware Doctor\svcntaux.exe (file missing)
O23 - Service: Spyware Doctor Service (sdCoreService) - Unknown owner - C:\Program Files\Spyware Doctor\swdsvc.exe (file missing)