Fenetres publicitaires intempestives

Bonjour,
je viens de découvrir ce site. j'espere qu'une personne pourra m'aider.
depuis quelques jours des que je connecte sur internet des fenetres publicitiares et autres apparaissent.

avec tous mes remerciements

Voici mon log :
Logfile of HijackThis v1.99.1
Scan saved at 10:01:51, on 14/09/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\MS\SMS\CORE\BIN\CLISVCL.EXE
C:\WINDOWS\Explorer.EXE
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\Network Associates\VirusScan\SHSTAT.EXE
C:\Program Files\Network Associates\Common Framework\UpdaterUI.exe
C:\Program Files\Fichiers communs\Network Associates\TalkBack\TBMon.exe
C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe
C:\WINDOWS\MS\SMS\CORE\BIN\LAUNCH32.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE
C:\WINDOWS\MS\SMS\clicomp\apa\Bin\smsapm32.exe
C:\WINDOWS\MS\SMS\CLICOMP\SWDist32\bin\smsmon32.exe
C:\Program Files\Microsoft Office\OFFICE11\EXCEL.EXE
C:\Documents and Settings\boulest2\Bureau\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.fr.dialeg.com/pa4/index.asp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.fr.dialeg.com/pa4/index.asp
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {64F56FC1-1272-44CD-BA6E-39723696E350} - (no file)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: (no name) - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - (no file)
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Client Access Service] "C:\Program Files\IBM\Client Access\cwbsvstr.exe"
O4 - HKLM\..\Run: [Client Access Help Update] "C:\Program Files\IBM\Client Access\cwbinhlp.exe"
O4 - HKLM\..\Run: [Client Access Check Version] "C:\Program Files\IBM\Client Access\cwbckver.exe" LOGIN
O4 - HKLM\..\Run: [Client Access Express Welcome] "C:\Program Files\IBM\Client Access\cwbwlwiz.exe"
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [ShStatEXE] "C:\Program Files\Network Associates\VirusScan\SHSTAT.EXE" /STANDALONE
O4 - HKLM\..\Run: [McAfeeUpdaterUI] "C:\Program Files\Network Associates\Common Framework\UpdaterUI.exe" /StartedFromRunKey
O4 - HKLM\..\Run: [Network Associates Error Reporting Service] "C:\Program Files\Fichiers communs\Network Associates\TalkBack\TBMon.exe"
O4 - HKLM\..\Run: [DVDLauncher] "C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe"
O4 - HKLM\..\Run: [SMS Application Launcher] C:\WINDOWS\MS\SMS\CORE\BIN\LAUNCH32.EXE
O4 - HKLM\..\Run: [SpywareTerminator] "C:\Program Files\Spyware Terminator\SpywareTerminatorShield.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE"
O4 - HKCU\..\Run: [ccleaner] "C:\Program Files\CCleaner\ccleaner.exe" /AUTO
O4 - Global Startup: EPSON Status Monitor 3 Environment Check.lnk = C:\WINDOWS\system32\spool\drivers\w32x86\3\E_SRCV03.EXE
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: Nettoyage du dossier TEMP.lnk = C:\Config-Wks\Tools\Nettoyage du dossier TEMP.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Créer un Favori de l'appareil mobile - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra 'Tools' menuitem: Créer un Favori de l'appareil mobile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O14 - IERESET.INF: START_PAGE_URL=http://www.fr.dialeg.com/pa4/index.asp
O15 - Trusted Zone: *.dialeg.com
O15 - Trusted Zone: *.fr.grpleg.com
O15 - Trusted Zone: *.dialeg.com (HKLM)
O15 - Trusted Zone: *.fr.grpleg.com (HKLM)
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site....
O16 - DPF: {ed54a7b0-6c1c-11d5-b63d-00c04faedb18} -
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = EU.DIR.GRPLEG.COM
O17 - HKLM\Software\..\Telephony: DomainName = EU.DIR.GRPLEG.COM
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = EU.DIR.GRPLEG.COM
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll
O23 - Service: Fonction Commande à distance d'iSeries Access for Windows (Cwbrxd) - IBM Corporation - C:\WINDOWS\CWBRXD.EXE
O23 - Service: McAfee Framework Service (McAfeeFramework) - Unknown owner - C:\Program Files\Network Associates\Common Framework\FrameworkService.exe" /ServiceStart (file missing)
O23 - Service: Network Associates McShield (McShield) - Network Associates, Inc. - C:\Program Files\Network Associates\VirusScan\Mcshield.exe
O23 - Service: Network Associates Task Manager (McTaskManager) - Network Associates, Inc. - C:\Program Files\Network Associates\VirusScan\VsTskMgr.exe
O23 - Service: OracleOraHome81ClientCache - Unknown owner - C:\oracle\ora81\BIN\ONRSD.EXE

cordialement