Ordinateur infecté.Incapable de résoudre seul

Bonjour,
mon ordi est infecté et je ne sais pas quoi faire pour le nettoyer.voici un hijackthis inclus.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 10:35:25, on 2009-08-25
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)
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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\system32\CSHelper.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\WINDOWS\system32\SHVRTF.EXE
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Lexmark 2500 Series\lxddamon.exe
C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\WINDOWS\system32\lxddcoms.exe
C:\Program Files\CyberLink\Shared Files\RichVideo.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\DNA\btdna.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\PROGRA~1\AVG\AVG8\avgemc.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\Program Files\AVG\AVG8\avgcsrvx.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Documents and Settings\winxp\Bureau\prog-applic\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.ca/?hl=fr&gws_rd=ssl
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
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.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: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [LanguageShortcut] "C:\Program Files\CyberLink\PowerDVD\Language\Language.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Fichiers communs\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [Protect] SHVRTF.EXE
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [lxddmon.exe] "C:\Program Files\Lexmark 2500 Series\lxddmon.exe"
O4 - HKLM\..\Run: [lxddamon] "C:\Program Files\Lexmark 2500 Series\lxddamon.exe"
O4 - HKLM\..\Run: [AdobeCS4ServiceManager] "C:\Program Files\Fichiers communs\Adobe\CS4ServiceManager\CS4ServiceManager.exe" -launchedbylogin
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [Nero Driver] nrvhost.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\RunServices: [Nero Driver] nrvhost.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [BitTorrent DNA] "C:\Program Files\DNA\btdna.exe"
O4 - HKCU\..\Run: [AlcoholAutomount] "C:\Program Files\Alcohol Soft\Alcohol 120\axcmd.exe" /automount
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
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')
O8 - Extra context menu item: Download all by Net Transport - C:\Program Files\Xi\NetTransport 2\NTAddList.html
O8 - Extra context menu item: Download by Net Transport - C:\Program Files\Xi\NetTransport 2\NTAddLink.html
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\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
O16 - DPF: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2008.10.10_v5.5.8/FacebookPhotoUploader5.cab
O16 - DPF: {3EA4FA88-E0BE-419A-A732-9B79B87A6ED0} (CTVUAxCtrl Object) - http://dl.tvunetworks.com/TVUAx.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx1.hotmail.com/mail/w3/resources/MSNPUpld.cab
O16 - DPF: {6218F7B5-0D3A-48BA-AE4C-49DCFA63D400} (CSEQueryObject Object) - http://www.myheritage.fr/Genoogle/Components/ActiveX/SearchEngineQuery.dll
O16 - DPF: {8100D56A-5661-482C-BEE8-AFECE305D968} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2009.07.28_v5.5.8.1/FacebookPhotoUploader55.cab
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) - http://game10.zylom.com/activex/zylomgamesplayer.cab
O16 - DPF: {D71F9A27-723E-4B8B-B428-B725E47CBA3E} (Imikimi_activex_plugin Control) - http://imikimi.com/download/imikimi_plugin_0.5.1.cab
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: AVG Free8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe
O23 - Service: AVG Free8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: CopySafe Helper Service (CSHelper) - Unknown owner - C:\WINDOWS\system32\CSHelper.exe
O23 - Service: Firebird Server - MAGIX Instance (FirebirdServerMAGIXInstance) - MAGIX® - C:\Program Files\MAGIX\Common\Database\bin\fbserver.exe
O23 - Service: FLEXnet Licensing Service - Acresso Software Inc. - C:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
O23 - Service: lxddCATSCustConnectService - Lexmark International, Inc. - C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\\lxddserv.exe
O23 - Service: lxdd_device - - C:\WINDOWS\system32\lxddcoms.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: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe
O23 - Service: SeekService Service - Unknown owner - C:\Documents and Settings\All Users\Application Data\SeekService\seekservice119.exe (file missing)
O23 - Service: StarWind AE Service (StarWindServiceAE) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe