Virus internet explorer, pub qui s'ouvre

Bonjour.

Parfois , lorsque je joue , lorsque je regarde n film ou alors que je ne fait rien , une fenêtre de pub s'ouvre avec internet explorer , je pense être infecté par un virus.
J'utilise uniquement Mozilla Firefox et je n'ai jamais lancé internet explorer.
J'ai essayé de faire ce qu'il est écrit içi mais Navilog1 ne marche pas sur windows 7 : https://www.commentcamarche.net/faq/2490-supprimer-les-adwares-publicites-intempestives-pop-up-etc

Comme vu sur des précédents post , le rapport Hijackthis

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:12:04, on 29/04/2010
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)\RocketDock\RocketDock.exe
C:\Program Files\Avast5\AvastUI.exe
C:\Program Files (x86)\Java\jre6\bin\jusched.exe
C:\Program Files (x86)\Drivers\USB 3.0\Application\nusb3mon.exe
C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\BCU.exe
C:\Windows\V0220Mon.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Program Files (x86)\Winamp\winamp.exe
C:\Program Files (x86)\Java\jre6\bin\jucheck.exe
C:\Program Files (x86)\Steam\Steam.exe
C:\Windows\SysWOW64\rundll32.exe
C:\Windows\Bgikea.exe
C:\Users\Chaos\AppData\Local\Temp\Bnl.exe
C:\Users\Chaos\Desktop\HiJackThis.exe

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://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
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://go.microsoft.com/fwlink/?LinkId=69157
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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: SearchHook Class - {BC86E1AB-EDA5-4059-938F-CE307B0C6F0A} - C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\AddressBarSearch.dll
F2 - REG:system.ini: UserInit=userinit.exe
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre6\bin\jp2ssv.dll
O4 - HKLM\..\Run: [avast5] "C:\Program Files\Avast5\avastUI.exe" /nogui
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [NUSB3MON] "C:\Program Files (x86)\Drivers\USB 3.0\Application\nusb3mon.exe"
O4 - HKLM\..\Run: [BCU] "C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\BCU.exe"
O4 - HKLM\..\Run: [JMB36X IDE Setup] C:\Windows\RaidTool\xInsIDE.exe
O4 - HKLM\..\Run: [V0220Mon.exe] C:\Windows\V0220Mon.exe
O4 - HKCU\..\Run: [RocketDock] "C:\Program Files (x86)\RocketDock\RocketDock.exe"
O4 - HKCU\..\Run: [DS3 Tool] C:\Program Files\MotioninJoy\ds3\DS3_Tool.exe -mini
O4 - HKCU\..\Run: [Canaveral] rundll32.exe C:\Windows\system32\sshnas21.dll,BackupReadW
O4 - HKCU\..\Run: [M5T8QL3YW3] C:\Users\Chaos\AppData\Local\Temp\Bnl.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'NETWORK SERVICE')
O13 - Gopher Prefix:
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Avast5\AvastSvc.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Avast5\AvastSvc.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Avast5\AvastSvc.exe
O23 - Service: Browser Configuration Utility Service (BCUService) - DeviceVM, Inc. - C:\Program Files (x86)\DeviceVM\Browser Configuration Utility\BCUService.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files (x86)\Bonjour\mDNSResponder.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: ES lite Service for program management. (ES lite Service) - Unknown owner - C:\Program Files (x86)\Gigabyte\EasySaver\ESSVR.EXE
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: JMB36X - Unknown owner - C:\Windows\SysWOW64\XSrvSetup.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: LibUsb-Win32 - Daemon, Version 0.1.10.1 (libusbd) - https://sourceforge.net/p/libusb-win32/wiki/Home/ - C:\Windows\system32\libusbd-nt.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - C:\Program Files (x86)\ma-config.com\maconfservice.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: 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: @%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: StarWind AE Service (StarWindServiceAE) - StarWind Software - C:\Program Files (x86)\Alcohol 120\StarWind\StarWindServiceAE.exe
O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files (x86)\Common Files\Steam\SteamService.exe
O23 - Service: NVIDIA Stereoscopic 3D Driver Service (Stereo Service) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\3D Vision\nvSCPAPISvr.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\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)

End of file - 7922 bytes