Pas de son+Ordi lent+fenêtres intempestives

Bonjour, depuis 1 semaine, des fenêtres intempestives ne cessent de s'ouvrir lorsque j'ouvre Firefox et mon ordinateur devient de plus en plus lent
Cela vient s'ajouter au fait que je n'ai plus de son depuis que j'ai formaté il ya qques mois. Ai-je un virus? Quel est le problème?

Merci d'avance.

Bonjour, voilà

Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16735)
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:\Program Files\Network Associates\Common Framework\FrameworkService.exe
C:\Program Files\Network Associates\VirusScan\Mcshield.exe
C:\Program Files\Network Associates\VirusScan\VsTskMgr.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\16gDaEuI.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Network Associates\VirusScan\SHSTAT.EXE
C:\Program Files\Network Associates\Common Framework\UpdaterUI.exe
C:\Program Files\Common Files\Network Associates\TalkBack\TBMon.exe
C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Windows Live\Contacts\wlcomm.exe
C:\Program Files\Windows Live\Messenger\wlcsdk.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Java\jre1.6.0_05\bin\jucheck.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
O2 - BHO: (no name) - {37f755b3-fc5b-4c2c-95b8-4bd1b395fa25} - C:\WINDOWS\system32\zatewada.dll
O2 - BHO: Click-to-Call BHO - {5C255C8A-E604-49b4-9D64-90988571CECB} - C:\Program Files\Windows Live\Messenger\wlchtc.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: VS_IEHlprObj Class - {829CAB51-A4EA-4a15-87B6-4B7D0747939C} - C:\Program Files\Network Associates\VirusScan\bho.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
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\Common Files\Network Associates\TalkBack\TBMon.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [veyogesivo] Rundll32.exe "C:\WINDOWS\system32\minasuvo.dll",s
O4 - HKLM\..\Run: [60d70c8a] rundll32.exe "C:\WINDOWS\system32\sogidona.dll",b
O4 - HKLM\..\Run: [CPM63e43f16] Rundll32.exe "c:\windows\system32\sihowedo.dll",a
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [CPM63e43f16] Rundll32.exe "c:\windows\system32\fibikavi.dll",a
O4 - HKUS\S-1-5-19\..\Run: [veyogesivo] Rundll32.exe "C:\WINDOWS\system32\minasuvo.dll",s (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [veyogesivo] Rundll32.exe "C:\WINDOWS\system32\minasuvo.dll",s (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [ctfmon.exe] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [FlashPlayerUpdate] C:\WINDOWS\system32\Macromed\Flash\FlashUtil9e.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [ctfmon.exe] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [FlashPlayerUpdate] C:\WINDOWS\system32\Macromed\Flash\FlashUtil9e.exe (User 'Default user')
O4 - Startup: LimeWire On Startup.lnk = C:\Program Files\LimeWire\LimeWire.exe
O8 - Extra context menu item: Télécharger avec &BitSpirit - C:\Program Files\BitSpirit\bsurl.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O16 - DPF: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5) - http://upload.facebook.com/control [...] oader5.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/bina [...] b56907.cab
O16 - DPF: {F5A7706B-B9C0-4C89-A715-7A0C6B05DD48} (Minesweeper Flags Class) - http://messenger.zone.msn.com/bina [...] b56986.cab
O20 - AppInit_DLLs: C:\WINDOWS\system32\busutuga.dll c:\windows\system32\fibikavi.dll c:\windows\system32\sihowedo.dll c:\windows\system32\nodivivo.dll
O21 - SSODL: SSODL - {EC43E3FD-5C60-46a6-97D7-E0B85DBDD6C4} - c:\windows\system32\sihowedo.dll
O22 - SharedTaskScheduler: STS - {EC43E3FD-5C60-46a6-97D7-E0B85DBDD6C4} - c:\windows\system32\sihowedo.dll
O23 - Service: McAfee Framework Service (McAfeeFramework) - Network Associates, Inc. - C:\Program Files\Network Associates\Common Framework\FrameworkService.exe
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: SmartLinkService (SLService) - Smart Link - C:\WINDOWS\SYSTEM32\slserv.exe

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