Win32 spyware gen et osa9.exe que faire???

Bonjour,
je ne suis pas une experte en info.
mon internet exploreur plantait depuis un bout de temps et j'ai decide d'installer mozillar. mais les meme problemes reviennet
dpuis che j'ai installer mozzillar, je n'arrete pas d'avoir des fenettrs qui se bloquent.
j'ai installer avast il m'a signaler le virus win32 spyware gen , je n'arrive pas a le lancer.
ce matin un autre virus c'est afficher osa9.exe.

voici mon rapport hijackthis.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12.20.53, on 28/11/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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:\Programmi\File comuni\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
C:\WINDOWS\system32\spoolsv.exe
c:\programmi\file comuni\logitech\lvmvfm\LVPrcSrv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\Programmi\CyberLink\PowerCinema\Kernel\TV\CLCapSvc.exe
C:\Programmi\CyberLink\PowerCinema\Kernel\CLML_NTService\CLMLServer.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\Programmi\File comuni\LogiShrd\LVCOMSER\LVComSer.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\Programmi\CyberLink\PowerCinema\Kernel\TV\CLSched.exe
C:\Programmi\File comuni\LogiShrd\LVCOMSER\LVComSer.exe
C:\WINDOWS\system32\CNAB4RPK.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\CyberLink\PowerCinema\PCMService.exe
C:\Programmi\HP\HP Software Update\HPwuSchd2.exe
C:\Programmi\Java\jre1.6.0_03\bin\jusched.exe
C:\Programmi\File comuni\LogiShrd\LComMgr\Communications_Helper.exe
C:\Programmi\Logitech\QuickCam\Quickcam.exe
C:\Programmi\File comuni\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
C:\WINDOWS\system32\LVCOMSX.EXE
C:\Programmi\DAEMON Tools\daemon.exe
C:\HP\KBD\KBD.EXE
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\osa9.exe
C:\Programmi\File comuni\Real\Update_OB\realsched.exe
C:\Programmi\LowRateVoip\LowRateVoip.exe
C:\Nuova cartella\Free Download Manager\FUM\fumoei.exe
C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe
C:\Programmi\Windows Live\Messenger\MsnMsgr.Exe
C:\Programmi\Trend Micro\Internet Security 2007\TMAS_OE\TMAS_OEMon.exe
C:\Documents and Settings\HP_Proprietario\Desktop\Nuova cartella\eMule\emule.exe
C:\Programmi\File comuni\Ahead\Lib\NMIndexStoreSvr.exe
C:\Programmi\File comuni\Logishrd\LQCVFX\COCIManager.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\File comuni\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Programmi\Windows Live\Messenger\usnsvc.exe
C:\Programmi\InternetCalls.com\InternetCalls\InternetCalls.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
c:\windows\system\hpsysdrv.exe
C:\Programmi\Yahoo!\Messenger\YahooMessenger.exe
C:\scanner.exe\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/it-it?cobrand=hp.msn.com&ocid=HPDHP&pc=HPDTDF
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://it.search.yahoo.com/?fr=cb-hp06
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/it-it?cobrand=hp.msn.com&ocid=HPDHP&pc=HPDTDF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = https://it.search.yahoo.com/?fr=cb-hp06
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/it-it?cobrand=hp.msn.com&ocid=HPDHP&pc=HPDTDF
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [HPHUPD08] c:\Programmi\HP\Digital Imaging\{33D6CC28-9F75-4d1b-A11D-98895B3A3729}\hphupd08.exe
O4 - HKLM\..\Run: [PCMService] "C:\Programmi\CyberLink\PowerCinema\PCMService.exe"
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [ccApp] "c:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [HPBootOp] "C:\Programmi\Hewlett-Packard\HP Boot Optimizer\HPBootOp.exe" /run
O4 - HKLM\..\Run: [Reminder] "C:\Windows\Creator\Remind_XP.exe"
O4 - HKLM\..\Run: [HP Software Update] C:\Programmi\HP\HP Software Update\HPwuSchd2.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "C:\Programmi\File comuni\LogiShrd\LComMgr\Communications_Helper.exe"
O4 - HKLM\..\Run: [LogitechQuickCamRibbon] "C:\Programmi\Logitech\QuickCam\Quickcam.exe" /hide
O4 - HKLM\..\Run: [Symantec PIF AlertEng] "C:\Programmi\File comuni\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /a /m "C:\Programmi\File comuni\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\AlertEng.dll"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Programmi\File comuni\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [EPSON Stylus DX5000 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIBVE.EXE /FU "C:\WINDOWS\TEMP\E_S46.tmp" /EF "HKLM"
O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [DAEMON Tools] "C:\Programmi\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [KBD] C:\HP\KBD\KBD.EXE
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Office SturtUp] osa9.exe
O4 - HKLM\..\Run: [gfxtray] rundll32 ctccw32.dll,findwnd
O4 - HKLM\..\Run: [TkBellExe] "C:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKCU\..\Run: [LowRateVoip] "C:\Programmi\LowRateVoip\LowRateVoip.exe" -nosplash -minimized
O4 - HKCU\..\Run: [Free Uploader Oe Integration] C:\Nuova cartella\Free Download Manager\FUM\fumoei.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [Uniblue RegistryBooster 2] C:\Programmi\Uniblue\RegistryBooster 2\RegistryBooster.exe /S
O4 - HKCU\..\Run: [VoipStunt] "C:\Programmi\VoipStunt.com\VoipStunt\VoipStunt.exe" -nosplash -minimized
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [OE] "C:\Programmi\Trend Micro\Internet Security 2007\TMAS_OE\TMAS_OEMon.exe"
O4 - HKCU\..\Run: [eMuleAutoStart] C:\Documents and Settings\HP_Proprietario\Desktop\Nuova cartella\eMule\emule.exe -AutoStart
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - .DEFAULT User Startup: Pin.lnk = C:\hp\bin\CLOAKER.EXE (User 'Default user')
O8 - Extra context menu item: &Windows Live Search - res://C:\Programmi\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Add to Windows &Live Favorites - https://onedrive.live.com/?id=favorites
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Guida alla connessione - {E2D4D26B-0180-43a4-B05F-462D6D54C789} - C:\WINDOWS\PCHEALTH\HELPCTR\Vendors\CN=Hewlett-Packard,L=Cupertino,S=Ca,C=US\IEButton\support.htm
O9 - Extra 'Tools' menuitem: Guida alla connessione - {E2D4D26B-0180-43a4-B05F-462D6D54C789} - C:\WINDOWS\PCHEALTH\HELPCTR\Vendors\CN=Hewlett-Packard,L=Cupertino,S=Ca,C=US\IEButton\support.htm
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra button: Upload - {FD4E2FF8-973C-4A19-89BD-8E86B3CFCFE1} - C:\Nuova cartella\Free Download Manager\FUM\fumiebtn.dll (file missing)
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Programmi\Yahoo!\Common\yinsthelper.dll
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft AB - C:\Programmi\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Adobe LM Service - Adobe Systems - C:\Programmi\File comuni\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe (file missing)
O23 - Service: Autodesk Licensing Service - Autodesk - C:\Programmi\File comuni\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashServ.exe (file missing)
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashWebSv.exe (file missing)
O23 - Service: Symantec Settings Manager (ccSetMgr) - Unknown owner - c:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe (file missing)
O23 - Service: CyberLink Background Capture Service (CBCS) (CLCapSvc) - Unknown owner - C:\Programmi\CyberLink\PowerCinema\Kernel\TV\CLCapSvc.exe
O23 - Service: CyberLink Task Scheduler (CTS) (CLSched) - Unknown owner - C:\Programmi\CyberLink\PowerCinema\Kernel\TV\CLSched.exe
O23 - Service: CyberLink Media Library Service - Cyberlink - C:\Programmi\CyberLink\PowerCinema\Kernel\CLML_NTService\CLMLServer.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Programmi\File comuni\LightScribe\LSSrvc.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: LiveUpdate Notice Service - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
O23 - Service: LVCOMSer - Logitech Inc. - C:\Programmi\File comuni\LogiShrd\LVCOMSER\LVComSer.exe
O23 - Service: Logitech Process Monitor (LVPrcSrv) - Logitech Inc. - c:\programmi\file comuni\logitech\lvmvfm\LVPrcSrv.exe
O23 - Service: NBService - Nero AG - C:\Programmi\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Norton Protection Center Service (NSCService) - Symantec Corporation - c:\Programmi\File comuni\Symantec Shared\Security Console\NSCSRVCE.EXE
O23 - Service: Utilità di pianificazione di LiveUpdate automatico - Symantec Corporation - C:\Programmi\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O24 - Desktop Component 0: (no name) - http://www.iwbank.it/common/bios/skins/iwbPub/images/logo_home_233x257.gif