Connexion internet très lente

Bonjour,

Depuis quelques temps ma connexion internet est très lente (aussi bien à la 1ère connexion, lors du démarrage du PC, que lors de navigation pour afficher une page).

Certainement un truc bizarre qui me pollue.

Comment faire pour le repérer ?

Avant ce post j'ai effectué un scanner avec :
- Malwarebyte's AntiMalware
- SpyBot

qui ont déjà fait du ménage.

Dans l'attente d'une aide bien précieuse.
Bye

Dom28130

Config sécutité :
- Eset Nod32 antivirus
- Emisoft antimalware
- Spy Sweeper de Webroot

Rapport de Hijack This :

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 07:12:53, on 23/08/2012
Platform: Unknown Windows (WinNT 6.01.3505 SP1)
MSIE: Internet Explorer v9.00 (9.00.8112.16448)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Rainlendar2\Rainlendar2.exe
C:\Program Files (x86)\Norton Ghost\Agent\VProTray.exe
C:\Program Files (x86)\OpenDNS Updater\OpenDNSUpdater.exe
C:\Program Files (x86)\Copernic Desktop Search - Corporate\DesktopSearchService.exe
C:\Program Files (x86)\Renesas Electronics\USB 3.0 Host Controller Driver\Application\nusb3mon.exe
C:\Program Files (x86)\HP\ToolboxFX\bin\HPTLBXFX.exe
C:\Program Files (x86)\HP\HP Software Update\hpwuschd2.exe
C:\Program Files (x86)\Emsisoft Anti-Malware\a2guard.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\Webroot\WebrootSecurity\SpySweeperUI.exe
C:\Hijack This\HijackThis.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\Dom\AppData\Local\Google\Chrome\Application\chrome.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://portail.free.fr/
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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O1 - Hosts: ::1 localhost #[IPv6]
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~2\SPYBOT~1\SDHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre6\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live ID - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O2 - BHO: SmartSelect - {F4971EE7-DAA0-4053-9964-665D8EE6A077} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O3 - Toolbar: Copernic Desktop Search - Corporate Toolbar - {B69A3268-DA39-49B0-B1A6-4E7E4B98BB45} - C:\Program Files (x86)\Copernic Desktop Search - Corporate\Toolbar\ToolbarContainer101000325.dll
O4 - HKLM\..\Run: [NUSB3MON] "C:\Program Files (x86)\Renesas Electronics\USB 3.0 Host Controller Driver\Application\nusb3mon.exe"
O4 - HKLM\..\Run: [ToolboxFX] "C:\Program Files (x86)\HP\ToolboxFX\bin\HPTLBXFX.exe" /enum:on /alerts:on /notifications:on /fl:on /fr:on /appData:on /tmcp:on
O4 - HKLM\..\Run: [HP Software Update] "C:\Program Files (x86)\Hp\HP Software Update\HPWuSchd2.exe"
O4 - HKLM\..\Run: [emsisoft anti-malware] "C:\Program Files (x86)\Emsisoft Anti-Malware\a2guard.exe" /d=60
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SpySweeper] "C:\Program Files (x86)\Webroot\WebrootSecurity\SpySweeperUI.exe" /startintray
O4 - HKCU\..\Run: [Rainlendar2] "C:\Program Files (x86)\Rainlendar2\Rainlendar2.exe"
O4 - HKCU\..\Run: [Norton Ghost 15.0] "C:\Program Files (x86)\Norton Ghost\Agent\VProTray.exe"
O4 - HKCU\..\Run: [OpenDNS Updater] "C:\Program Files (x86)\OpenDNS Updater\OpenDNSUpdater.exe" /autostart
O4 - HKCU\..\Run: [Copernic Desktop Search - Corporate] "C:\Program Files (x86)\Copernic Desktop Search - Corporate\DesktopSearchService.exe" /tray
O4 - HKCU\..\Run: [SRSHDAudioLab] "C:\Program Files\SRS Labs\SRS Audio Essentials\AudioEssentials.exe" auto
O4 - HKUS\S-1-5-18\..\RunOnce: [{91120000-0014-0000-0000-0000000FF1CE}] C:\Windows\system32\cmd.exe /C del "C:\ProgramData\Microsoft Help\Rgstrtn.lck" /Q /A:H (User 'Système')
O4 - HKUS\.DEFAULT\..\RunOnce: [{91120000-0014-0000-0000-0000000FF1CE}] C:\Windows\system32\cmd.exe /C del "C:\ProgramData\Microsoft Help\Rgstrtn.lck" /Q /A:H (User 'Default user')
O4 - Startup: ERUNT AutoBackup.lnk = C:\Program Files (x86)\ERUNT\AUTOBACK.EXE
O8 - Extra context menu item: Ajouter la cible du lien à un fichier PDF existant - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convertir au format Adobe PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convertir la cible du lien au format Adobe PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~2\MICROS~1\Office12\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~1\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~2\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~2\SPYBOT~1\SDHelper.dll
O9 - Extra button: Correcteur - {F7C8E5F6-B6D1-45db-8D91-2BCFA5DF11A9} - C:\Program Files (x86)\Druide\Antidote 7\Texteurs\Internet Explorer\Antidote.InternetExplorer.K.P109.htm (HKCU)
O9 - Extra button: Dictionnaires - {F9B969E8-58D0-4dd9-AC8A-EE2336FF8F65} - C:\Program Files (x86)\Druide\Antidote 7\Texteurs\Internet Explorer\Antidote.InternetExplorer.D.P109.htm (HKCU)
O9 - Extra button: Guides - {FA089E36-3F1B-4c51-9A1A-C4E7012483AF} - C:\Program Files (x86)\Druide\Antidote 7\Texteurs\Internet Explorer\Antidote.InternetExplorer.G.P109.htm (HKCU)
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O15 - Trusted IP range: http://127.0.0.1
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{8C476EDB-0298-4790-BAA7-61C6AB865474}: NameServer = 208.67.220.220
O17 - HKLM\System\CCS\Services\Tcpip\..\{AEBD068A-338D-4B2E-954C-5930CFD739E4}: NameServer = 208.67.222.222,208.37.220.220
O17 - HKLM\System\CCS\Services\Tcpip\..\{FD825FCE-F133-41A0-834D-00F5BA3085C4}: NameServer = 208.67.222.222,208.67.220.220
O23 - Service: Emsisoft Anti-Malware 6.0 - Service (a2AntiMalware) - Emsisoft GmbH - C:\Program Files (x86)\Emsisoft Anti-Malware\a2service.exe
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: AppleChargerSrv - Unknown owner - C:\Windows\system32\AppleChargerSrv.exe (file missing)
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - COMODO - C:\Program Files\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: CyberLink PowerDVD 12 Media Server Service - CyberLink - C:\Program Files (x86)\CyberLink\PowerDVD12\Kernel\DMS\CLMSServerPDVD12.exe
O23 - Service: Device Error Recovery Service (dgdersvc) - Devguru Co., Ltd. - C:\Windows\system32\dgdersvc.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: ESET Service (ekrn) - ESET - C:\Program Files\ESET\ESET NOD32 Antivirus\x86\ekrn.exe
O23 - Service: FABS - Helping agent for MAGIX media database (Fabs) - MAGIX AG - C:\Program Files (x86)\Common Files\MAGIX Services\Database\bin\FABS.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: FLEXnet Licensing Service - Acresso Software Inc. - C:\Program Files (x86)\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: FLEXnet Licensing Service 64 - Acresso Software Inc. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService64.exe
O23 - Service: GenericMount Helper Service - Symantec - C:\Program Files (x86)\Norton Ghost\Shared\Drivers\GenericMountHelperx64.exe
O23 - Service: HP LaserJet Service - HP - C:\Program Files (x86)\HP\HPLaserJetService\HPLaserJetService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files (x86)\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~2\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Norton Ghost - Symantec Corporation - C:\Program Files (x86)\Norton Ghost\Agent\VProSvc.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Protexis Licensing V2 (PSI_SVC_2) - Protexis Inc. - c:\Program Files (x86)\Common Files\Protexis\License Service\PsiService_2.exe
O23 - Service: Cyberlink RichVideo64 Service(CRVS) (RichVideo64) - Unknown owner - C:\Program Files\CyberLink\Shared files\RichVideo64.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - CACE Technologies, Inc. - C:\Program Files (x86)\WinPcap\rpcapd.exe
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\Windows\system32\sppsvc.exe (file missing)
O23 - Service: SRS HDAudio Lab Service (SRSHDAudioService) - SRS Labs, Inc. - C:\Program Files (x86)\Common Files\SRS Labs\SRS HD Audio Lab Service 2\SRSAudioLabService.exe
O23 - Service: SymSnapService - Symantec - C:\Program Files (x86)\Norton Ghost\Shared\Drivers\SymSnapServicex64.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.exe (file missing)
O23 - Service: Moteur Webroot Spy Sweeper (WebrootSpySweeperService) - Webroot Software, Inc. (www.webroot.com) - C:\Program Files (x86)\Webroot\WebrootSecurity\SpySweeper.exe
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)
O23 - Service: Webroot Client Service (WRConsumerService) - Webroot Software, Inc. - C:\Program Files (x86)\Webroot\WebrootSecurity\WRConsumerService.exe

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