Virus trojan...

Bonjour,
depuis quelques temps, j'ai des problèmes avec mon ordinateur. Des fenêtres s'ouvrent n'importe quand lorsque je vais sur internet. De plus, mon antivirus (avast) détecte de nombreux virus, notamment le fameux cheval de troie. Je ne sais pas comment m'en débarrasser. Je vous colle un rapport de Hijackthis. Peut-être pourrez-vous m'aider...

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20:55:02, on 24/02/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16608)
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:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Netropa\Multimedia Keyboard\nhksrv.exe
C:\WINDOWS\System32\FTRTSVC.exe
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\PAStiSvc.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\Explorer.EXE
C:\ATI-CPanel\atiptaxx.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
C:\Program Files\FSC\Wireless Wheel Mouse\MOUSE32A.EXE
C:\Program Files\Netropa\Multimedia Keyboard\MMKeybd.exe
C:\Program Files\ZTE Corporation\ZXDSL852\CnxDslTb.exe
C:\Program Files\QuickTime\qttask.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\PROGRA~1\Wanadoo\TaskBarIcon.exe
C:\Program Files\Wanadoo\EspaceWanadoo.exe
C:\Program Files\Wanadoo\ComComp.exe
C:\PROGRA~1\Wanadoo\Toaster.exe
C:\Program Files\Netropa\Multimedia Keyboard\TrayMon.exe
C:\PROGRA~1\Wanadoo\Inactivity.exe
C:\Program Files\Netropa\Onscreen Display\OSD.exe
C:\PROGRA~1\Wanadoo\PollingModule.exe
C:\WINDOWS\System32\ALERTM~1\ALERTM~1.EXE
C:\Program Files\Netropa\InetKb\Inetkb.exe
C:\Program Files\Wanadoo\Watch.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Alwil Software\Avast4\ashSimpl.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Hijackthis\eden\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://www.bing.com/?FORM=TOOLBR&cc=fr&toHttps=1&redig=4527FFF1C12746FC9EDB535C75E80ECC
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?FORM=TOOLBR&cc=fr&toHttps=1&redig=4527FFF1C12746FC9EDB535C75E80ECC
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://runonce.msn.com/?v=msgrv75
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = https://www.bing.com/?FORM=TOOLBR&cc=fr&toHttps=1&redig=4527FFF1C12746FC9EDB535C75E80ECC
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\PROGRA~1\Wanadoo\SEARCH~1.DLL
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {549B5CA7-4A86-11D7-A4DF-000874180BB3} - (no file)
O2 - BHO: (no name) - {6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C} - (no file)
O2 - BHO: HbTools - {74CC49F7-EB32-4A08-B204-948962A6E3DB} - (no file)
O2 - BHO: (no name) - {7D23E4BD-030C-4C91-A258-9AC0D8000946} - (no file)
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O2 - BHO: Multi Media Toolbar - {b5146c40-189a-4311-bda9-fbae3e023187} - C:\Program Files\Multi_Media\tbMul0.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O2 - BHO: IEHlprObj Class - {CD4C3CF0-4B15-11D1-ABED-709549C10000} - C:\Program Files\Go!Zilla\GoIEHlp.dll
O2 - BHO: (no name) - {CF46BFB3-2ACC-441b-B82B-36B9562C7FF1} - (no file)
O2 - BHO: (no name) - {FDD3B846-8D59-4ffb-8758-209B6AD74ACC} - (no file)
O3 - Toolbar: (no name) - {74CC49F7-EB32-4A08-B204-948962A6E3DB} - (no file)
O3 - Toolbar: Multi Media Toolbar - {b5146c40-189a-4311-bda9-fbae3e023187} - C:\Program Files\Multi_Media\tbMul0.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [ATIPTA] C:\ATI-CPanel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NAV_Update] C:\NAV_Update.exe
O4 - HKLM\..\Run: [Omnipage] C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [LWBMOUSE] C:\Program Files\FSC\Wireless Wheel Mouse\MOUSE32A.EXE
O4 - HKLM\..\Run: [MULTIMEDIA KEYBOARD] C:\Program Files\Netropa\Multimedia Keyboard\MMKeybd.exe
O4 - HKLM\..\Run: [CnxDslTaskBar] "C:\Program Files\ZTE Corporation\ZXDSL852\CnxDslTb.exe" "ZTE Corporation\ZXDSL852"
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\Wanadoo\GestMaj.exe TaskBarIcon.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MoneyAgent] "C:\Program Files\Microsoft Money\System\mnyexpr.exe"
O4 - HKCU\..\Run: [WOOKIT] C:\Program Files\Wanadoo\GestMaj.exe EspaceWanadoo.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Instant Access] C:\WINDOWS\system32\lnaccess.exe /res
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - Startup: VP-EYE.lnk = C:\VP-EYE\control\vpeyev4.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Windows Live Search - res://C:\Program Files\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: Download with Go!Zilla - file://C:\Program Files\Go!Zilla\download-with-gozilla.html
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab31267.cab
O16 - DPF: {201B9B37-848F-40BD-90EA-7B8F0AA89D6A} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1071_em_XP.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/FR-FR/a-UNO1/GAME_UNO1.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Environnement d'exécution Java 1.4.0_03) -
O16 - DPF: {8C875948-9C60-4381-9248-0DF180542D53} - http://installs.hotbar.com/installs/hbtools/programs/hbtools.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab47946.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {CAFEEFAC-0014-0000-0003-ABCDEFFEDCBA} (Environnement d'exécution Java 1.4.0_03) -
O16 - DPF: {F607AD2B-B04E-40F9-AF0C-0B8F048CCA3F} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1074_em_XP.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BC428EF2-8676-42E5-9A1F-832AD7255901}: NameServer = 81.253.149.1 80.10.246.3
O20 - Winlogon Notify: geedb - C:\WINDOWS\System32\geedb.dll (file missing)
O20 - Winlogon Notify: pmnomll - pmnomll.dll (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: France Telecom Routing Table Service (FTRTSVC) - France Telecom - C:\WINDOWS\System32\FTRTSVC.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Microsoft Genuine Advantage - Unknown owner - C:\WINDOWS\System32\dllcache\winmga.exe (file missing)
O23 - Service: Netropa NHK Server (nhksrv) - Unknown owner - C:\Program Files\Netropa\Multimedia Keyboard\nhksrv.exe
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: STI Simulator - Unknown owner - C:\WINDOWS\System32\PAStiSvc.exe