tout d abord merci de ta reponse.
Je te joins le rapport

Logfile of HijackThis v1.99.1
Scan saved at 13:22:28, on 08/10/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRAM FILES\AVPERSONAL\AVGUARD.EXE
C:\Program Files\AVPersonal\AVWUPSRV.EXE
C:\Program Files\Microsoft SQL Server\MSSQL$PINNACLESYS\Binn\sqlservr.exe
C:\Program Files\Pinnacle\Shared Files\Programs\MediaCenterService\PMC.Service.Main.exe
C:\Program Files\Pinnacle\Shared Files\Programs\Remote\Remoterm.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\AVPersonal\AVGNT.EXE
C:\Program Files\Winamp\winampa.exe
C:\Program Files\Java\jre1.5.0_04\bin\jusched.exe
C:\Program Files\Media Access\MediaAccK.exe
C:\Program Files\Media Access\MediaAccess.exe
C:\Program Files\Photodex\ProShowGold\ScsiAccess.exe
C:\PROGRA~1\Web Offer\wo.exe
C:\PROGRA~1\ezula\mmod.exe
c:\program files\pinnacle\shared files\programs\mediaserver\pmshost.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.google.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.pmu.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.files-ftp.com/~unicorni/phpBB2/index.php
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: FlashFXP Helper for Internet Explorer - {E5A1691B-D188-4419-AD02-90002030B8EE} - C:\PROGRA~1\FlashFXP\IEFlash.dll
O4 - HKLM\..\Run: [PMCS] C:\Program Files\Pinnacle\Shared Files\Programs\MediaCenterService\PMC.Service.Main.exe -host -clearDebug
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\system32\PSDrvCheck.exe -CheckReg
O4 - HKLM\..\Run: [PMCRemote] C:\Program Files\Pinnacle\Shared Files\Programs\Remote\Remoterm.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [gcasServ] "C:\Program Files\Microsoft AntiSpyware\gcasServ.exe"
O4 - HKLM\..\Run: [AVGCtrl] "C:\Program Files\AVPersonal\AVGNT.EXE" /min
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_04\bin\jusched.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [CloneCDElbyCDFL] "C:\Program Files\Elaborate Bytes\CloneCD\ElbyCheck.exe" /L ElbyCDFL
O4 - HKLM\..\Run: [shell32] C:\WINDOWS\system32\wuauclt10.exe
O4 - HKLM\..\Run: [Client Server Runtime Process] C:\WINDOWS\system32\smmss.exe
O4 - HKLM\..\Run: [Windows update] C:\WINDOWS\system32\wudupdate.exe
O4 - HKLM\..\Run: [I downloaded pirated Software from P2P and now I post my Hijack log whining] C:\WINDOWS\system32\Fifa 2006 soccer crack.exe
O4 - HKLM\..\Run: [Media Access] C:\Program Files\Media Access\MediaAccK.exe
O4 - HKLM\..\Run: [Power Scan] C:\Program Files\Power Scan\powerscan.exe
O4 - HKLM\..\Run: [IST Service] C:\Program Files\ISTsvc\istsvc.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKCU\..\Run: [eZWO] C:\PROGRA~1\Web Offer\wo.exe
O4 - HKCU\..\Run: [Spyware Cleaner] "C:\Program Files\Spyware Cleaner\SpywareCleaner.Exe" /boot
O4 - HKCU\..\Run: [eZmmod] C:\PROGRA~1\ezula\mmod.exe
O4 - HKCU\..\RunOnce: [Web Offer] C:\WINDOWS\system32\smmss.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
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~4\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.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.files-ftp.com/~unicorni/phpBB2/index.php
O15 - Trusted Zone: http://ny.contentmatch.net (HKLM)
O23 - Service: AntiVir Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\PROGRAM FILES\AVPERSONAL\AVGUARD.EXE
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Program Files\AVPersonal\AVWUPSRV.EXE
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Pinnacle Systems Media Service (PinnacleSys.MediaServer) - Pinnacle Systems - c:\program files\pinnacle\shared files\programs\mediaserver\pmshost.exe
O23 - Service: ScsiAccess - Unknown owner - C:\Program Files\Photodex\ProShowGold\ScsiAccess.exe
O23 - Service: SpywareCleanerService - Unknown owner - C:\Program Files\Spyware Cleaner\SCService.exe (file missing)
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe