Bonjour,
Suite à vos conseils avisés, voici mon log Hijackthis.Merci de me dire quoi cocher.
Logfile of HijackThis v1.99.1
Scan saved at 16:48:21, on 30/01/2006
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\brsvc01a.exe
C:\WINDOWS\System32\brss01a.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\fxssvc.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Microsoft Office\Office\OSA.EXE
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\SYSTEM32\ZONELABS\vsmon.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\DOCUME~1\MARIEG~1\LOCALS~1\Temp\Répertoire temporaire 1 pour hijackthis_199[1].zip\HijackThis.exe
C:\WINDOWS\system32\wuauclt.exe
R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://votreportail.neuf.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: MSEvents Object - {8DBF02DA-4360-4A7E-BEA1-347B87816327} - C:\WINDOWS\System32\xxyay.dll
O4 - HKLM\..\Run: [USB Hardware9 Monitoring] USBhardware9.exe
O4 - HKLM\..\Run: [Up Service] up32.pif
O4 - HKLM\..\Run: [Compaq Service Drivers] winsvc32.exe
O4 - HKLM\..\Run: [SVCH Service] svch32.pif
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKLM\..\RunServices: [USB Hardware9 Monitoring] USBhardware9.exe
O4 - HKLM\..\RunServices: [Up Service] up32.pif
O4 - HKLM\..\RunServices: [Compaq Service Drivers] winsvc32.exe
O4 - HKLM\..\RunServices: [SVCH Service] svch32.pif
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [USB Hardware9 Monitoring] USBhardware9.exe
O4 - HKCU\..\Run: [Up Service] up32.pif
O4 - HKCU\..\Run: [Compaq Service Drivers] winsvc32.exe
O4 - HKCU\..\Run: [SVCH Service] svch32.pif
O4 - HKCU\..\RunServices: [Up Service] up32.pif
O4 - HKCU\..\RunServices: [Compaq Service Drivers] winsvc32.exe
O4 - HKCU\..\RunServices: [SVCH Service] svch32.pif
O4 - Global Startup: Microsoft Recherche accélérée.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O4 - Global Startup: Démarrage d'Office.lnk = C:\Program Files\Microsoft Office\Office\OSA.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
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O15 - Trusted Zone: *.media-motor.net
O15 - Trusted Zone: *.popuppers.com
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540013} - http://adserver.sharewareonline.com/adserver/Install.cab
O16 - DPF: {511F9316-771B-4953-A268-1C36DA667FE9} - http://ip.sponsoradulto.com/cab/3/fr/SysWebTelecomInt.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1134636821599
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1134746126612
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) - http://www.inoculer.com/antivirus/Msie/bitdefender.cab
O20 - Winlogon Notify: efecb - efecb.dll (file missing)
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
O20 - Winlogon Notify: xxyay - C:\WINDOWS\System32\xxyay.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.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: BrSplService (Brother XP spl Service) - brother Industries Ltd - C:\WINDOWS\System32\brsvc01a.exe
O23 - Service: NetDDE Server (NetDDEsrv) - Unknown owner - C:\WINDOWS\System32\netddesrv.exe (file missing)
O23 - Service: System Manager Service (SMSC) - Unknown owner - C:\WINDOWS\smsc.exe (file missing)
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\SYSTEM32\ZONELABS\vsmon.exe
Marie de Gironde de plus en plus gênée par ce trojan-gen{other}

J'essaie tout ça et je te renvoie le résultat.
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