Merci à boulepate62 pour son aide .

Voici le rapport de HijackThis :

Logfile of HijackThis v1.99.1
Scan saved at 22:57:39, on 09/10/2006
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\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Creative\ShareDLL\CtNotify.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FSM32.EXE
C:\Program Files\PACK SECURITE AntiVirus-Firewall\FSGUI\ispnews.exe
C:\PROGRA~1\NUMERI~1\MONASS~1\SMARTB~1\MotiveSB.exe
C:\Program Files\Creative\PC-CAM Center\CAMTRAY.EXE
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Creative\ShareDLL\MediaDet.exe
C:\PROGRA~1\PACKSE~1\backweb\542802\Program\SERVIC~1.EXE
C:\Program Files\CASIO\Photo Loader\Plauto.exe
C:\WINDOWS\system32\CTSVCCDA.EXE
C:\Program Files\PACK SECURITE AntiVirus-Firewall\backweb\542802\Program\fspex.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Anti-Virus\fsgk32st.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Anti-Virus\FSGK32.EXE
C:\Program Files\PACK SECURITE AntiVirus-Firewall\backweb\542802\program\fsbwsys.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FSMA32.EXE
C:\Program Files\Numericable\Mon Assistant Internet\bin\mad.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FSMB32.EXE
C:\WINDOWS\system32\svchost.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Anti-Virus\fssm32.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FCH32.EXE
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FAMEH32.EXE
C:\Program Files\Numericable\Mon Assistant Internet\bin\mpbtn.exe
C:\PROGRA~1\Motive\ASSTCO~1\MOTIVE~1.EXE
C:\Program Files\PACK SECURITE AntiVirus-Firewall\Anti-Virus\fsav32.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\FWES\Program\fsdfwd.exe
C:\Program Files\PACK SECURITE AntiVirus-Firewall\FSGUI\fsguiexe.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\ROUSSEL\Bureau\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.euro.dell.com/countries/fr/fra/gen/default.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://fr.msn.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.euro.dell.com/countries/fr/fra/gen/default.htm
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.euro.dell.com/countries/fr/fra/gen/default.htm
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.euro.dell.com/countries/fr/fra/gen/default.htm
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Explorer par NUMERICABLE
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: (no name) - {77701e16-9bfe-4b63-a5b4-7bd156758a37} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - C:\Program Files\MSN Apps\ST\01.03.0000.1005\en-xu\stmain.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: MSNToolBandBHO - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\MSN Toolbar\01.02.5000.1021\fr\msntb.dll
O3 - Toolbar: (no name) - {BA52B914-B692-46c4-B683-905236F6F655} - (no file)
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\MSN Toolbar\01.02.5000.1021\fr\msntb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [PCMService] "C:\Program Files\Dell\Media Experience\PCMService.exe"
O4 - HKLM\..\Run: [DVDLauncher] "C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe"
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [UpdateManager] "C:\Program Files\Fichiers communs\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [Disc Detector] C:\Program Files\Creative\ShareDLL\CtNotify.exe
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Program Files\PACK SECURITE AntiVirus-Firewall\TNB\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKLM\..\Run: [F-Secure Startup Wizard] "C:\Program Files\PACK SECURITE AntiVirus-Firewall\FSGUI\FSSW.EXE" /reboot
O4 - HKLM\..\Run: [News Service] "C:\Program Files\PACK SECURITE AntiVirus-Firewall\FSGUI\ispnews.exe"
O4 - HKLM\..\Run: [Motive SmartBridge] C:\PROGRA~1\NUMERI~1\MONASS~1\SMARTB~1\MotiveSB.exe
O4 - HKLM\..\Run: [Creative WebCam Tray] C:\Program Files\Creative\PC-CAM Center\CAMTRAY.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [PC-CAM 600 STI App Registration] RunDLL32.exe PD023pin.dll,RunDLL32EP 512
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - Startup: antispysoldier.lnk = C:\Program Files\Antispyware Soldier\antispysoldier.exe
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Mon Assistant Internet.lnk = C:\Program Files\Numericable\Mon Assistant Internet\bin\matcli.exe
O4 - Global Startup: Supervision de Photo Loader.lnk = C:\Program Files\CASIO\Photo Loader\Plauto.exe
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: &Translate English Word - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: Backward Links - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: Similar Pages - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate Page into English - res://c:\program files\google\GoogleToolbar2.dll/cmtrans.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\system32\msjava.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\system32\msjava.dll
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\system32\Shdocvw.dll
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: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?LinkId=39204&clcid=0x409
O16 - DPF: {2357B3CF-7F8D-4451-8D81-FD6097610AEE} (CamfrogWEB Advanced Unicode Control) - http://www.bobtv.fr/download/cfweb_www.bobtv.fr-download_instmodule.exe
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} - http://download.mcafee.com/molbin/shared/mcinsctl/fr/4,0,0,84/mcinsctl.cab
O16 - DPF: {5ED80217-570B-4DA9-BF44-BE107C0EC166} (Windows Live Safety Center Base Module) - http://cdn.scan.safety.live.com/resource/download/scanner/wlscbase969.cab
O16 - DPF: {6DB731A3-B074-4118-8B1C-32511C65D836} (FotovistaPhotoUploader.ctrFpu) - http://www.mypixmania.com/fr/fr/tools/activex/fpu.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {C5E28B9D-0A68-4B50-94E9-E8F6B4697519} (NsvPlayX Control) - http://www.nullsoft.com/nsv/embed/nsvplayx_vp6_aac.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: PACK SECURITE AntiVirus-Firewall (BackWeb Plug-in - 542802) - Unknown owner - C:\PROGRA~1\PACKSE~1\backweb\542802\Program\SERVIC~1.EXE
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTSVCCDA.EXE
O23 - Service: F-Secure Gatekeeper Handler Starter - F-Secure Corp. - C:\Program Files\PACK SECURITE AntiVirus-Firewall\Anti-Virus\fsgk32st.exe
O23 - Service: fsbwsys - F-Secure Corp. - C:\Program Files\PACK SECURITE AntiVirus-Firewall\backweb\542802\program\fsbwsys.exe
O23 - Service: F-Secure Anti-Virus Firewall Daemon (FSDFWD) - F-Secure Corporation - C:\Program Files\PACK SECURITE AntiVirus-Firewall\FWES\Program\fsdfwd.exe
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Program Files\PACK SECURITE AntiVirus-Firewall\Common\FSMA32.EXE
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - C:\Program Files\Intel\PROSetWired\NCS\Sync\NetSvc.exe