Virus redirection Google - Aidez-moi !

Bonjour,
je suis l'un de ces malheureux qui est aux prises avec cette fâcheuse redirection de page Google. Mon système est aussi très lent et je ne peux installer les mises-à-jours de sécurité Windows. J'ai déjà essayé des dizaines d'antivirus, antimalware et antispyware, même le scan pré-démarrage d'avast... rien à faire le problème persiste.

Voici mon logfile issu de Hijackthis. Si l'un(e) d'entre-vous peux m'aider, je lui serais hautement reconnaissant:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 16:22:07, on 2010-11-05
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

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\Fingerprint Sensor\AtService.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Hewlett-Packard\Drive Encryption\HpFkCrypt.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
c:\Program Files\ActivIdentity\ActivClient\acevents.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\AVG\AVG9\avgchsvx.exe
C:\WINDOWS\System32\SCardSvr.exe
C:\Program Files\AVG\AVG9\avgrsx.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\Program Files\Hewlett-Packard\IAM\Bin\AsGHost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\msdtc.exe
c:\Program Files\ActivIdentity\ActivClient\accoca.exe
C:\WINDOWS\system32\agrsmsvc.exe
C:\Program Files\AVG\AVG9\avgwdsvc.exe
C:\Program Files\Spyware Doctor\BDT\BDTUpdateService.exe
C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
C:\PROGRA~1\AVG\AVG9\avgtray.exe
C:\Program Files\AVG\AVG9\avgnsx.exe
C:\Program Files\Spyware Doctor\pctsTray.exe
C:\WINDOWS\system32\cisvc.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Executive Software\DiskeeperWorkstation\DKService.exe
C:\WINDOWS\system32\RAMASST.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\Program Files\Hewlett-Packard\HP ProtectTools Security Manager\PTChangeFilterService.exe
C:\Program Files\SpywareGuard\sgmain.exe
C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe
C:\WINDOWS\system32\ifxspmgt.exe
C:\WINDOWS\system32\ifxtcs.exe
C:\WINDOWS\system32\inetsrv\inetinfo.exe
C:\Program Files\Fichiers communs\InterVideo\RegMgr\iviRegMgr.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\SpywareGuard\sgbhp.exe
C:\WINDOWS\system32\IfxPsdSv.exe
C:\Program Files\Spyware Doctor\pctsAuxs.exe
C:\Program Files\Spyware Doctor\pctsSvc.exe
C:\WINDOWS\system32\tcpsvcs.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\mqsvc.exe
C:\WINDOWS\system32\mqtgsvc.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe
C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe
C:\WINDOWS\System32\alg.exe
C:\Program Files\Hewlett-Packard\Shared\HpqToaster.exe
C:\Program Files\Hewlett-Packard\Embedded Security Software\PSDrt.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\cidaemon.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Program Files\Fichiers communs\Adobe\Updater5\AdobeUpdater.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
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 Connection Wizard,ShellNext = http://runonce.msn.com/runonce3.aspx
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: ContributeBHO Class - {074C1DC5-9320-4A9A-947D-C042949C6216} - C:\Program Files\Adobe\/Adobe Contribute CS3/contributeieplugin.dll
O2 - BHO: Browser Defender BHO - {2A0F3D1B-0909-4FF4-B272-609CCE6054E7} - C:\Program Files\Spyware Doctor\BDT\PCTBrowserDefender.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll
O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.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: Credential Manager for HP ProtectTools - {DF21F1DB-80C6-11D3-9483-B03D0EC10000} - C:\Program Files\Hewlett-Packard\IAM\Bin\ItIEAddIn.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Contribute Toolbar - {517BDDE4-E3A7-4570-B21E-2B52B6139FC7} - C:\Program Files\Adobe\/Adobe Contribute CS3/contributeieplugin.dll
O3 - Toolbar: PC Tools Browser Guard - {472734EA-242A-422B-ADF8-83D1E48CC825} - C:\Program Files\Spyware Doctor\BDT\PCTBrowserDefender.dll
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
O4 - HKLM\..\Run: [IFXSPMGT] C:\WINDOWS\system32\ifxspmgt.exe /NotifyLogon
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKLM\..\Run: [ISTray] "C:\Program Files\Spyware Doctor\pctsTray.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.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 - S-1-5-18 Startup: MRU-Blaster Scheduler.lnk = C:\Program Files\MRU-Blaster\scheduler.exe (User 'SYSTEM')
O4 - S-1-5-18 Startup: MRU-Blaster Silent Clean.lnk = C:\Program Files\MRU-Blaster\mrublaster.exe (User 'SYSTEM')
O4 - S-1-5-18 Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe (User 'SYSTEM')
O4 - .DEFAULT Startup: MRU-Blaster Scheduler.lnk = C:\Program Files\MRU-Blaster\scheduler.exe (User 'Default user')
O4 - .DEFAULT Startup: MRU-Blaster Silent Clean.lnk = C:\Program Files\MRU-Blaster\mrublaster.exe (User 'Default user')
O4 - .DEFAULT Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe (User 'Default user')
O4 - Startup: MRU-Blaster Scheduler.lnk = C:\Program Files\MRU-Blaster\scheduler.exe
O4 - Startup: MRU-Blaster Silent Clean.lnk = C:\Program Files\MRU-Blaster\mrublaster.exe
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: RAMASST.lnk = C:\WINDOWS\system32\RAMASST.exe
O8 - Extra context menu item: Append to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Envoyer au périphérique &Bluetooth... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O8 - Extra context menu item: Envoyer à Bluetooth - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.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) - {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: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/...
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll
O20 - Winlogon Notify: ackpbsc - c:\WINDOWS\system32\ackpbsc.dll
O20 - Winlogon Notify: acunlock - c:\Program Files\ActivIdentity\ActivClient\acunlock.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O20 - Winlogon Notify: DeviceNP - C:\WINDOWS\SYSTEM32\DeviceNP.dll
O20 - Winlogon Notify: OneCard - C:\Program Files\Hewlett-Packard\IAM\Bin\ASWLNPkg.dll
O23 - Service: ActivClient Middleware Service (accoca) - ActivIdentity - c:\Program Files\ActivIdentity\ActivClient\accoca.exe
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Adobe Version Cue CS3 - Adobe Systems Incorporated - C:\Program Files\Fichiers communs\Adobe\Adobe Version Cue CS3\Server\bin\VersionCueCS3.exe
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - Agere Systems - C:\WINDOWS\system32\agrsmsvc.exe
O23 - Service: AuthenTec Fingerprint Service (ATService) - AuthenTec, Inc. - C:\Program Files\Fingerprint Sensor\AtService.exe
O23 - Service: AVG Free WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe
O23 - Service: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Browser Defender Update Service - Threat Expert Ltd. - C:\Program Files\Spyware Doctor\BDT\BDTUpdateService.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: Com4QLBEx - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\HP Quick Launch Buttons\Com4QLBEx.exe
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\DiskeeperWorkstation\DKService.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: Verrouillage des périphériques / Audition HP ProtectTools (FLCDLOCK) - Hewlett-Packard Ltd - C:\WINDOWS\system32\flcdlock.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Service Google Update (gupdate1c9b61277e6faa4) (gupdate1c9b61277e6faa4) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: HP ProtectTools Service - Hewlett-Packard Development Company, L.P - C:\Program Files\Hewlett-Packard\HP ProtectTools Security Manager\PTChangeFilterService.exe
O23 - Service: Drive Encryption Service (HpFkCryptService) - SafeBoot International - C:\Program Files\Hewlett-Packard\Drive Encryption\HpFkCrypt.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Program Files\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: Intel(R) Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Security Platform Management Service (IFXSpMgtSrv) - Infineon Technologies AG - C:\WINDOWS\system32\ifxspmgt.exe
O23 - Service: Trusted Platform Core Service (IFXTCS) - Infineon Technologies AG - C:\WINDOWS\system32\ifxtcs.exe
O23 - Service: IviRegMgr - InterVideo - C:\Program Files\Fichiers communs\InterVideo\RegMgr\iviRegMgr.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
O23 - Service: Service Personal Secure Drive (PersonalSecureDriveService) - Infineon Technologies AG - C:\WINDOWS\system32\IfxPsdSv.exe
O23 - Service: QuestDns Service - Unknown owner - C:\Documents and Settings\All Users\Application Data\QuestDns\questdns111.exe (file missing)
O23 - Service: RoxMediaDB10 - Sonic Solutions - C:\Program Files\Fichiers communs\Roxio Shared\10.0\SharedCOM\RoxMediaDB10.exe
O23 - Service: PC Tools Auxiliary Service (sdAuxService) - PC Tools - C:\Program Files\Spyware Doctor\pctsAuxs.exe
O23 - Service: PC Tools Security Service (sdCoreService) - PC Tools - C:\Program Files\Spyware Doctor\pctsSvc.exe
O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Program Files\Fichiers communs\SureThing Shared\stllssvr.exe