Probleme pub intempestives

Bonjour,
depuis quelques jours j'ai d pub qui apparaissent sans arret et avast ne detecte pas de quoi il sagit pourriez vous m'aider svp vous pouvez me joindre sur msn liloo_azerty@hotmail.com
merci d avance
voici mon rapport hijack



Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:57:35, on 29/03/2008
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.exe
C:\WINDOWS\VMSnap23.exe
C:\WINDOWS\Domino.exe
C:\WINDOWS\System32\RunDll32.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\WINDOWS\mrofinu.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\System32\ctfmon.exe
C:\WINDOWS\System32\RUNDLL32.EXE
C:\Program Files\nvcoi\nvcoi.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\pdf.exe
C:\WINDOWS\System32\sams.exe
C:\WINDOWS\17PHolmes.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\eMule\emule.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\MSN Messenger\usnsvc.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
F2 - REG:system.ini: Shell=Explorer.exe %WINDIR%\pdf.exe
O2 - BHO: Simple Search Assistant - {0391AAD0-AB5A-4338-B6DC-BB8405EB1C58} - C:\WINDOWS\System32\ssa.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: testCPV6 - {15421B84-3488-49A7-AD18-CBF84A3EFAF6} - C:\Program Files\CPV\CPV7.dll
O2 - BHO: Connection Optimizer - {20DB9EAE-C9AA-11DC-BD97-09A456D89593} - C:\WINDOWS\System32\ssa.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [BigDogPath323VMSnap] C:\WINDOWS\VMSnap23.exe
O4 - HKLM\..\Run: [BigDogPath323Domino] C:\WINDOWS\Domino.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [runner1] C:\WINDOWS\mrofinu.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\System32\NVMCTRAY.DLL,NvTaskbarInit
O4 - HKCU\..\Run: [nvcoi] C:\Program Files\nvcoi\nvcoi.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [SfKg6w] C:\Documents and Settings\LocalService\Application Data\Microsoft\lfrkftfe.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [JavaCore] C:\Program Files\\JavaCore\\JavaCore.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [NoDNS] C:\Program Files\\NoDNS\\NoDNS.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://download.microsoft.com/download/E/5/6/E5611B10-0D6D-4117-8430-A67417AA88CD/LegitCheckControl.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} (HardwareDetection Control) - https://www.touslesdrivers.com/index.php?v_page=29
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - https://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O20 - Winlogon Notify: eeeacafebce - C:\WINDOWS\System32\eeeacafebce.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Print2Email - Unknown owner - C:\WINDOWS\pdf.exe
O23 - Service: Scanning Analist Management System (SAMS) - Unknown owner - C:\WINDOWS\System32\sams.exe
O23 - Service: Windows User Mode Driver Framework (UMWdf) - Unknown owner - C:\WINDOWS\System32\wdfmgr.exe (file missing)