Pubs intempestives

Bonjour,

Depuis peu de temps j'ai des fenêtres de pub qui s'ouvrent alors que avant tout se passer bien.
j'ai fais un scan avec Hijackthis et en voila le résultat :

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\system32\taskeng.exe
C:\Windows\Explorer.EXE
C:\Program Files\Common Files\Adobe\OOBE\PDApp\UWA\AAM Updates Notifier.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\VIA\VIAAUD\viaaud.exe
C:\Program Files\Launch Manager\LManager.exe
C:\Program Files\NewTech Infosystems\Packard Bell MyBackup\BackupManagerTray.exe
C:\Program Files\Microsoft IntelliPoint\ipoint.exe
C:\Program Files\AVAST Software\Avast\AvastUI.exe
C:\Program Files\Packard Bell\Packard Bell PowerSave Solution\ePowerTray.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Boxore\BoxoreClient\boxore.exe
C:\Program Files\Packard Bell\SetUpMyPC\SmpSys.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\OrangeHSS\Launcher\Launcher.exe
C:\PROGRA~1\COMMON~1\France Telecom\Shared Modules\AlertModule\0\AlertModule.exe
C:\Program Files\OrangeHSS\systray\systrayapp.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Mozilla Firefox\plugin-container.exe
C:\Windows\system32\Macromed\Flash\FlashPlayerPlugin_11_4_402_287.exe
C:\Windows\system32\Macromed\Flash\FlashPlayerPlugin_11_4_402_287.exe
C:\Users\cedre\Downloads\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.cherche.us
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
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://startsear.ch/?aff=1
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.durable.com/recherche
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://www.cherche.us/keyword/%s
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page_bak = http://www.cherche.us
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Windows Internet Explorer fourni par Orange
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\Program Files\OrangeHSS\SearchURLHook\SearchPageURL.dll
R3 - URLSearchHook: (no name) - {ef79f67a-6ad7-4715-a0f8-932fca442023} - (no file)
F2 - REG:system.ini: UserInit=C:\Windows\system32\userinit.exe
O2 - BHO: vShare Toolbar - {043C5167-00BB-4324-AF7E-62013FAEDACF} - C:\Program Files\vShare\vshare_toolbar.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~3\Office14\GROOVEEX.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: IE5BarLauncherBHO Class - {78F3A323-798E-4AEA-9A57-88F4B05FD5DD} - C:\Program Files\vShare.tv plugin\BarLcher.dll
O2 - BHO: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.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: URLRedirectionBHO - {B4F3A835-0E21-4959-BA22-42B3008E02FF} - C:\PROGRA~1\MICROS~3\Office14\URLREDIR.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: barre d'outils Orange - {D3028143-6145-4318-99D3-3EDCE54A95A9} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O3 - Toolbar: (no name) - {ef79f67a-6ad7-4715-a0f8-932fca442023} - (no file)
O3 - Toolbar: (no name) - {30F9B915-B755-4826-820B-08FBA6BD249D} - (no file)
O3 - Toolbar: vShare Toolbar - {043C5167-00BB-4324-AF7E-62013FAEDACF} - C:\Program Files\vShare\vshare_toolbar.dll
O3 - Toolbar: VShareToolBar - {7AC3E13B-3BCA-4158-B330-F66DBB03C1B5} - C:\Program Files\vShare.tv plugin\BarLcher.dll
O3 - Toolbar: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [VIAAUD] C:\Program Files\VIA\VIAAUD\viaaud.exe
O4 - HKLM\..\Run: [LManager] C:\Program Files\Launch Manager\LManager.exe
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: [IntelliPoint] "C:\Program Files\Microsoft IntelliPoint\ipoint.exe"
O4 - HKLM\..\Run: [ORAHSSSessionManager] "C:\Program Files\OrangeHSS\SessionManager\SessionManager.exe"
O4 - HKLM\..\Run: [avast] "C:\Program Files\AVAST Software\Avast\avastUI.exe" /nogui
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [AdobeAAMUpdater-1.0] "C:\Program Files\Common Files\Adobe\OOBE\PDApp\UWA\UpdaterStartupUtility.exe"
O4 - HKLM\..\Run: [Boxore Client] C:\Program Files\Boxore\BoxoreClient\boxore.exe
O4 - HKCU\..\Run: [SmpcSys] C:\Program Files\Packard Bell\SetUpMyPC\SmpSys.exe
O4 - HKCU\..\Run: [orangeinside] C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\two\OrangeInside.exe
O4 - HKCU\..\Run: [Google Update] "C:\Users\cedre\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.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')
O8 - Extra context menu item: &Envoyer à OneNote - res://C:\PROGRA~1\MICROS~3\Office14\ONBttnIE.dll/105
O8 - Extra context menu item: ajouter cette page à vos favoris Orange - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\addfavorites_html\addfavorites.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office14\EXCEL.EXE/3000
O8 - Extra context menu item: envoyer le texte sélectionné par sms - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\sendsmsselectedtext_html\sendsmsselectedtext.html
O8 - Extra context menu item: envoyer par sms - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\sendsms_html\sendsms.html
O8 - Extra context menu item: envoyer un mail - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\sendmail_html\sendmail.html
O8 - Extra context menu item: orange.fr - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\orange_html\orange.html
O8 - Extra context menu item: Recherche avec cherche.us - C:\Users\cedre\scriptjava.html
O8 - Extra context menu item: rechercher le texte sélectionné - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\selectedsearch_html\selectedsearch.html
O8 - Extra context menu item: traduire la page - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\translate_html\translate.html
O8 - Extra context menu item: traduire le texte sélectionné - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\translateSelectedText_html\translateSelectedText.html
O8 - Extra context menu item: _ajouter cette page à vos favoris Orange - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\addfavorites_html\addfavorites.html
O8 - Extra context menu item: _envoyer le texte sélectionné par sms - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\sendsmsselectedtext_html\sendsmsselectedtext.html
O8 - Extra context menu item: _envoyer par sms - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\sendsms_html\sendsms.html
O8 - Extra context menu item: _envoyer un mail - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\sendmail_html\sendmail.html
O8 - Extra context menu item: _orange.fr - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\orange_html\orange.html
O8 - Extra context menu item: _rechercher le texte sélectionné - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\selectedsearch_html\selectedsearch.html
O8 - Extra context menu item: _traduire la page - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\translate_html\translate.html
O8 - Extra context menu item: _traduire le texte sélectionné - C:\Users\cedre\AppData\Roaming\Orange\OrangeInside\src\translateSelectedText_html\translateSelectedText.html
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O9 - Extra button: Notes &liées OneNote - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O9 - Extra 'Tools' menuitem: Notes &liées OneNote - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files\orange\ToolbarFR\ToolbarContainer101000317.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O13 - Gopher Prefix:
O15 - Trusted Zone: *.chat-land.org
O15 - Trusted Zone: http://*.mappy.com
O15 - Trusted Zone: http://*.orange.fr
O15 - Trusted Zone: http://rw.search.ke.voila.fr
O15 - Trusted Zone: http://orange.weborama.fr
O16 - DPF: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} - http://fichiers.touslesdrivers.com/maconfig/MaConfig_3_5_3_0.cab
O18 - Protocol: vsharechrome - {3F3A4B8A-86FC-43A4-BB00-6D7EBE9D4484} - C:\Program Files\vShare\vshare_toolbar.dll
O18 - Filter hijack: text/xml - {807573E5-5146-11D5-A672-00B0D022E945} - C:\Program Files\Common Files\Microsoft Shared\OFFICE14\MSOXMLMF.DLL
O23 - Service: Adobe Active File Monitor V10 (AdobeActiveFileMonitor10.0) - Adobe Systems Incorporated - C:\Program Files\Adobe\Elements 10 Organizer\PhotoshopElementsFileAgent.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\AVAST Software\Avast\AvastSvc.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: France Telecom Routing Table Service (FTRTSVC) - France Telecom SA - C:\PROGRA~1\COMMON~1\France Telecom\Shared Modules\FTRTSVC\0\FTRTSVC.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: NTI IScheduleSvc - NewTech Infosystems, Inc. - C:\Program Files\NewTech Infosystems\Packard Bell MyBackup\IScheduleSvc.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: SBSD Security Center Service (SBSDWSCService) - Safer Networking Ltd. - C:\Program Files\Spybot - Search & Destroy\SDWinSec.exe
O23 - Service: Software Update Service (supdate) (supdate) - Boxore OU. - C:\Program Files\Software\Update\SoftwareUpdate.exe