Malware Alarm 2.1

Bonjour,

Voici mon soucis, je ne sais pas comment le parasite Malware Alarm 2.1 s'est installé sur mon pc.
J'ai essayé basiquement de le désinstaller mais en vain, à chaque redémmarage pc il est présent.
Voici l'Hijack actuel de mon pc:

Logfile of HijackThis v1.99.1
Scan saved at 10:39:45, on 09/03/2008
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\system32\spoolsv.exe
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe
C:\WINDOWS\lclock.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Google\Google Updater\GoogleUpdater.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\MalwareAlarm\MalwareAlarm.exe
C:\Program Files\MalwareAlarm\pv.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\cmd.exe
C:\WINDOWS\system32\clcl16.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\DOCUME~1\FAMILL~1.LSD\LOCALS~1\Temp\Répertoire temporaire 1 pour hijackthis_199[1].zip\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.orange.fr/portail
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://lstard.stormcorp.net/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O3 - Toolbar: GamesBar - {6F282B65-56BF-4BD1-A8B2-A4449A05863D} - C:\Program Files\GamesBar\oberontb.dll (file missing)
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\FICHIE~1\INSTAL~1\UpdateService\isuspm.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [HerculesCamService] C:\Program Files\Hercules\Hercules DualPix HD Webcam\CamService.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [Salestart] "C:\Program Files\Fichiers communs\WinAntiVirus Pro 2007\mav_startupmon.exe"
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [clcl16] C:\WINDOWS\system32\clcl16.exe
O4 - HKLM\..\Run: [avast!] "C:\Program Files\Alwil Software\Avast4\ashDisp.exe"
O4 - HKLM\..\Run: [BM0f48ceed] Rundll32.exe "C:\WINDOWS\system32\xdkwavst.dll",s
O4 - HKLM\..\Run: [0c7bfd71] rundll32.exe "C:\WINDOWS\system32\stgjymti.dll",b
O4 - HKCU\..\Run: [LClock] lclock.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [updateMgr] C:\Program Files\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe AcRdB7_0_9
O4 - HKCU\..\Run: [Uniblue RegistryBooster 2] C:\Program Files\Uniblue\RegistryBooster 2\RegistryBooster.exe /S
O4 - HKCU\..\Run: [Windows update loader] C:\Windows\xpupdate.exe
O4 - HKCU\..\Run: [MalwareAlarm] C:\Program Files\MalwareAlarm\MalwareAlarm.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Outil de mise à jour Google.lnk = C:\Program Files\Google\Google Updater\GoogleUpdater.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: (no name) - {1A93C934-025B-4c3a-B38E-9654A7003239} - C:\Program Files\GamesBar\oberontb.dll (file missing)
O9 - Extra 'Tools' menuitem: GamesBar - {1A93C934-025B-4c3a-B38E-9654A7003239} - C:\Program Files\GamesBar\oberontb.dll (file missing)
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyPoker\PartyPoker.exe (file missing)
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyPoker\PartyPoker.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O16 - DPF: {09C6CAC0-936E-40A0-BC26-707480103DC3} - http://www.uproar.com/applets/activex/shizmoo/flipside_web18.cab
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: {1A26F07F-0D60-4835-91CF-1E1766A0EC56} (WebInstall Class) - http://scanner2.malware-scan.com/setup/webinst_fr.cab
O16 - DPF: {54BE6B6F-3056-470B-97E1-BB92E051B6C4} - http://h20264.www2.hp.com/ediags/dd/install/HPDriverDiagnosticsxp2k.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {6B75345B-AA36-438A-BBE6-4078B4C6984D} - http://h20270.www2.hp.com/ediags/gmn2/install/HPProductDetection.cab
O16 - DPF: {A031D222-B496-11D2-9CC8-00105A10AAF6} (WONWebLauncher Class) - http://hoylegames.sierra.com/cab/WONWebLauncherControl.cab
O16 - DPF: {B49C4597-8721-4789-9250-315DFBD9F525} (IWinAmpActiveX Class) - http://cdn.digitalcity.com/radio/ampx/ampx2.6.1.11_fr_dl.cab
O16 - DPF: {D0C0F75C-683A-4390-A791-1ACFD5599AB8} (Oberon Flash Game Host) - http://jeuxmultijoueurs.orange.fr/Gameshell/GameHost/1.0/OberonGameHost.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSN Messenger\msgrapp.8.1.0178.00.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSN Messenger\msgrapp.8.1.0178.00.dll
O20 - AppInit_DLLs:
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe

Merci de votre aide :)