Pubs intempestives

Bonjour,
Des pubs s'ouvrent toutes seuls avec google chrome depuis quelques temps. Que faut t-il faire y remédier ?
Voici mon rapport hijackthis :


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:10:26, on 11/12/2011
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v9.00 (9.00.8112.16421)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\TuneUp Utilities 2011\TuneUpUtilitiesApp32.exe
C:\Users\Marie-Jeanne\AppData\Roaming\eoRezo\SoftwareUpdate\SoftwareUpdateHP.exe
C:\Program Files\cspep\cspep.exe
C:\Users\Marie-Jeanne\AppData\Local\eojet\eojet.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\NewTech Infosystems\Packard Bell MyBackup\BackupManagerTray.exe
C:\Program Files\PACKARD BELL\Packard Bell PowerSave Solution\ePowerTray.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Launch Manager\LManager.exe
C:\Program Files\Video Web Camera\traybar.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\CyberLink\PowerDVD8\PDVD8Serv.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\Program Files\EoRezo\eorezo.exe
C:\Program Files\Avira\AntiVir Desktop\avgnt.exe
C:\Program Files\Epson Software\Event Manager\EEventManager.exe
C:\Users\Marie-Jeanne\AppData\Local\combroadcaster\combroadcaster.exe
C:\Program Files\PACKARD BELL\SetUpMyPC\SmpSys.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\e-Carte Bleue La Banque Postale\ecbl-lbp.exe
C:\Program Files\Video Web Camera\CEC_MAIN.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Users\MARIE-~1\AppData\Local\Temp\RtkBtMnt.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CCC.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Synaptics\SynTP\SynTPHelper.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Windows\system32\conime.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=040c&s=2&o=vp32&d=0609&m=easynote_lj61
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://y.lo.st
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=040c&s=2&o=vp32&d=0609&m=easynote_lj61
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=040c&s=2&o=vp32&d=0609&m=easynote_lj61
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,First Home Page = http://y.lo.st
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\yt.dll
O1 - Hosts: ::1 localhost
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\yt.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Easy Photo Print - {9421DD08-935F-4701-A9CA-22DF90AC4EA6} - C:\Program Files\Epson Software\Easy Photo Print\EPTBL.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: EOBHO Class - {C10DC1F4-CCDF-4224-A24D-B23AFC3573C8} - C:\Program Files\EoRezo\EoRezoBHO.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - (no file)
O3 - Toolbar: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\yt.dll
O3 - Toolbar: Easy Photo Print - {9421DD08-935F-4701-A9CA-22DF90AC4EA6} - C:\Program Files\Epson Software\Easy Photo Print\EPTBL.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [RtHDVCpl] C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe
O4 - HKLM\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\Run: [BackupManagerTray] "C:\Program Files\NewTech Infosystems\Packard Bell MyBackup\BackupManagerTray.exe" -k
O4 - HKLM\..\Run: [Acer ePower Management] C:\Program Files\Packard Bell\Packard Bell PowerSave Solution\ePowerTrayLauncher.exe
O4 - HKLM\..\Run: [LManager] C:\PROGRA~1\LAUNCH~1\LManager.exe
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [Camera Assistant Software] "C:\Program Files\Video Web Camera\traybar.exe"
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [RemoteControl8] "C:\Program Files\CyberLink\PowerDVD8\PDVD8Serv.exe"
O4 - HKLM\..\Run: [PDVD8LanguageShortcut] "C:\Program Files\CyberLink\PowerDVD8\Language\Language.exe"
O4 - HKLM\..\Run: [Skytel] C:\Program Files\Realtek\Audio\HDA\Skytel.exe
O4 - HKLM\..\Run: [eorezo] "C:\Program Files\EoRezo\eorezo.exe"
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [EEventManager] "C:\Program Files\Epson Software\Event Manager\EEventManager.exe"
O4 - HKLM\..\Run: [PC Booster] C:\Program Files\inKline Global\PC Booster\pcbooster.exe
O4 - HKLM\..\Run: [combroadcaster] "C:\Users\Marie-Jeanne\AppData\Local\combroadcaster\combroadcaster.exe"
O4 - HKLM\..\RunOnce: [AvgUninstallURL] cmd.exe /c start http://www.avg.fr/fr.special-uninstallation-feedback-appf?lic=OQBBAFYARgBSAEUARQAtAFYAMgBHADMASwAtADgANwBXAFUAVQAtADIAVABWAEgAQQAtAFgANgBEAEYAOAAtAEwANgBQAEEATgA"&"inst=NwA3AC0AOQA2ADYAOQA2ADYANAAzAC0AWABMACsAMQAtAFQANAAtAEIAQQBSADkARwArADEALQBGAEwAKwA5AC0ARgA5AE0ANgArADEA"&"prod=90"&"ver=9.0.872
O4 - HKLM\..\RunOnce: [SoftwareHelper] C:\Users\Marie-Jeanne\AppData\Roaming\eoRezo\SoftwareUpdate\SoftwareUpdateHP.exe -runonce
O4 - HKLM\..\RunOnce: [cspep.exe] C:\Program Files\cspep\cspep.exe -runonce
O4 - HKLM\..\RunOnce: [eojet.exe] C:\Users\Marie-Jeanne\AppData\Local\eojet\eojet.exe -runonce
O4 - HKCU\..\Run: [SmpcSys] C:\Program Files\PACKARD BELL\SetUpMyPC\SmpSys.exe
O4 - HKCU\..\Run: [swg] "C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe"
O4 - HKCU\..\Run: [EPSON SX125 Series] C:\Windows\system32\spool\DRIVERS\W32X86\3\E_FATIGGE.EXE /FU "C:\Windows\TEMP\E_S790F.tmp" /EF "HKCU"
O4 - HKCU\..\Run: [Facebook Update] "C:\Users\Marie-Jeanne\AppData\Local\Facebook\Update\FacebookUpdate.exe" /c /nocrashserver
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE RÉSEAU')
O4 - Global Startup: e-Carte Bleue La Banque Postale.lnk = C:\Program Files\e-Carte Bleue La Banque Postale\ecbl-lbp.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_7461B1589E8B4FB7.dll/cmsidewiki.html
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
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O13 - Gopher Prefix:
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O20 - AppInit_DLLs: AVGRSSTX.DLL C:\PROGRA~1\GOOGLE\GOOGLE~1\GOEC62~1.DLL
O23 - Service: ABBYY FineReader 9.0 Sprint Licensing Service (ABBYY.Licensing.FineReader.Sprint.9.0) - ABBYY - C:\Program Files\Common Files\ABBYY\FineReaderSprint\9.00\Licensing\NetworkLicenseServer.exe
O23 - Service: Adobe Active File Monitor V6 (AdobeActiveFileMonitor6.0) - Unknown owner - C:\Program Files\Adobe\Photoshop Elements 6.0\PhotoshopElementsFileAgent.exe
O23 - Service: Avira AntiVir Planificateur (AntiVirSchedulerService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Ati External Event Utility - ATI Technologies Inc. - C:\Windows\system32\Ati2evxx.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Acer ePower Service (ePowerSvc) - Acer Incorporated - C:\Program Files\PACKARD BELL\Packard Bell PowerSave Solution\ePowerSvc.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Desktop Manager 5.9.1005.12335 (GoogleDesktopManager-051210-111108) - Google - C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
O23 - Service: Service Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Service Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (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: Nero BackItUp Scheduler 3 - Nero AG - C:\Program Files\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Nero\Lib\NMIndexingService.exe
O23 - Service: NTI IScheduleSvc - NewTech Infosystems, Inc. - C:\Program Files\NewTech Infosystems\Packard Bell MyBackup\IScheduleSvc.exe
O23 - Service: PLFlash DeviceIoControl Service - Prolific Technology Inc. - C:\Windows\system32\IoctlSvc.exe
O23 - Service: TuneUp Utilities Service (TuneUp.UtilitiesSvc) - TuneUp Software - C:\Program Files\TuneUp Utilities 2011\TuneUpUtilitiesService32.exe