Firefox ouvre des fenêtres de pub, que faire?

Bonjour à toutes et à tous,
J'utilise Firefox. Depuis quelque temps des fenêtres de pub apparaissent.
mon Ordi. est protégé par AVAST.
J'ai passé Spybot . Il a éliminé quelques mouchards mais le problème, persiste.
J'ai effectué un scan. minutieux avec Avast,rien.
j'ai ré-installé Firefox sans résultat.
Quelqu'un aurait la solution?
Pour info j'ai rapatrié Navilog et Hijackthis, je vous livre leurs analyses auxquelles je ne comprend rien, mes connaissances en informatique se réduisant à savoir taper avec deux doigt sur un clavier.
Merci Pour le temps que vous passerez à me répondre
Cordialement

Fix Navipromo version 4.0.9 commencé le 23/09/2010 22:00:07,50

!!! Attention,ce rapport peut indiquer des fichiers/programmes légitimes!!!
!!! Postez ce rapport sur le forum pour le faire analyser !!!

Outil exécuté depuis C:\navilog1

Mise à jour le 17.09.2010 à 16h00 par IL-MAFIOSO

Microsoft Windows 7 Édition Familiale Premium ( v6.1.7600 )
x64-based PC ( Multiprocessor Free : AMD Athlon(tm) II X2 215 Processor )
BIOS : )Phoenix - Award WorkstationBIOS v6.00PG
USER : duranddelisle ( Not Administrator ! )
BOOT : Normal boot




C:\ (Local Disk) - NTFS - Total:458 Go (Free:263 Go)
D:\ (Local Disk) - NTFS - Total:459 Go (Free:443 Go)
E:\ (CD or DVD) - CDFS - Total:0 Go (Free:0 Go)
G:\ (USB)
H:\ (USB)
I:\ (USB)
J:\ (USB)


Recherche executée en mode normal


[b]Aucune Infection Navipromo/Egdaccess trouvée/b

*** Scan terminé 23/09/2010 22:00:23,98 ***



Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21:25:44, on 22/09/2010
Platform: Unknown Windows (WinNT 6.01.3504)
MSIE: Internet Explorer v8.00 (8.00.7600.16385)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Alwil Software\Avast5\AvastUI.exe
C:\Program Files (x86)\OpenOffice.org 3\program\soffice.exe
C:\Program Files (x86)\OpenOffice.org 3\program\soffice.bin
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\EoRezo\Best-Softs.exe
C:\Program Files (x86)\EoRezo\eorezo.exe
C:\Program Files (x86)\Vuze\Azureus.exe
C:\Users\papanne\Downloads\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=040c&m=imedia_s3210&r=173604101406p0495v125y44839898
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 = http://y.lo.st
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=040c&m=imedia_s3210&r=173604101406p0495v125y44839898
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 = http://homepage.packardbell.com/rdr.aspx?b=ACPW&l=040c&m=imedia_s3210&r=173604101406p0495v125y44839898
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
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe
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: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.6.5612.1312\swg.dll
O2 - BHO: Vuze Remote Toolbar - {ba14329e-9550-4989-b3f2-9732e92d17cc} - C:\Program Files (x86)\Vuze_Remote\tbVuze.dll
O2 - BHO: EOBHO - {C10DC1F4-CCDF-4224-A24D-B23AFC3573C8} - C:\Program Files (x86)\EoRezo\EoRezoBHO.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O3 - Toolbar: Vuze Remote Toolbar - {ba14329e-9550-4989-b3f2-9732e92d17cc} - C:\Program Files (x86)\Vuze_Remote\tbVuze.dll
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [avast5] "C:\Program Files\Alwil Software\Avast5\avastUI.exe" /nogui
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [Best-Softs] "C:\Program Files (x86)\EoRezo\Best-Softs.exe"
O4 - HKLM\..\Run: [eorezo] "C:\Program Files (x86)\EoRezo\eorezo.exe"
O4 - HKLM\..\RunOnce: [UpdateBest-SoftsHP] C:\Users\duranddelisle\AppData\Roaming\Best-Softs\UpdateBest-Softs\UpdateBest-SoftsHP.exe -runonce
O4 - HKCU\..\Run: [EPSON Stylus SX200 Series] C:\Windows\system32\spool\DRIVERS\x64\3\E_IATIEFE.EXE /FU "C:\Users\papanne\AppData\Local\Temp\E_S366B.tmp" /EF "HKCU"
O4 - HKCU\..\Run: [swg] "C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe"
O4 - HKCU\..\Run: [AdobeUpdater6] "C:\Program Files (x86)\Common Files\Adobe\Updater6\Adobe_Updater.exe"
O4 - HKCU\..\RunOnce: [FlashPlayerUpdate] C:\Windows\system32\Macromed\Flash\NPSWF32_FlashUtil.exe -p
O4 - Startup: OpenOffice.org 3.2.lnk = C:\Program Files (x86)\OpenOffice.org 3\program\quickstart.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~2\MICROS~1\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files (x86)\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_89D8574934B26AC4.dll/cmsidewiki.html
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~1\Office12\ONBttnIE.dll
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
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
O13 - Gopher Prefix:
O23 - Service: Adobe Active File Monitor V7 (AdobeActiveFileMonitor7.0) - Adobe Systems Incorporated - c:\Program Files (x86)\Adobe\Photoshop Elements 7.0\PhotoshopElementsFileAgent.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: EPSON V5 Service4(01) (EPSON_EB_RPCV4_01) - SEIKO EPSON CORPORATION - C:\ProgramData\EPSON\EPW!3 SSRP\E_S40STB.EXE
O23 - Service: EPSON V3 Service4(01) (EPSON_PM_RPCV4_01) - SEIKO EPSON CORPORATION - C:\ProgramData\EPSON\EPW!3 SSRP\E_S40RPB.EXE
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files (x86)\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
O23 - Service: GRegService (Greg_Service) - Acer Incorporated - C:\Program Files (x86)\Packard Bell\Registration\GregHSRW.exe
O23 - Service: Service Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: Nero BackItUp Scheduler 4.0 - Nero AG - C:\Program Files (x86)\Common Files\Nero\Nero BackItUp 4\NBService.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: Oberon Media Game Console service (OberonGameConsoleService) - Unknown owner - C:\Program Files (x86)\Packard Bell GameZone\GameConsole\OberonGameConsoleService.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
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: SBSD Security Center Service (SBSDWSCService) - Safer Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy\SDWinSec.exe
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: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: Updater Service - Acer - C:\Program Files\Packard Bell\Packard Bell Updater\UpdaterService.exe
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: @%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)