Virus

Bonjour,
Mon pc est infecté de virus. J'ai acheté mcAfee, installé Spybot, mais toujours problèmes :
- pc de plus en plus lent
- écrans pub de + en plus fréquents (Malware,...tous disent que mon pc est infecté de virus et proposent de faire le scan de mon pc). Que faire ?

De plus, je ne sais que faire avec les messages de Spybot: "Autoriser la modification" ou "Refuser la modification" en cas de messages en rouge. Que faire ?
Et à chaque démarrage, McAfee m'annonce les mêmes messages : 'McAfee a repéré, bloqué/supprimé un fichier infecté ...' avec toujours les mêmes noms de fichiers.

Cela fait 4 semaines que ça dure.Une éternité !!! Et j'ai l'intention de reformater le disque dur mais voudrais être sûr de mes opérations. D'où questions :
1) Comment copier les fichiers sur un CD ? J'avais un programme sur le pc mais ne le retrouve plus. Y-a-t-il un gratuit sur le web ?
2) Que faire pour être sûr de ne rien perdre des programmes ? Au moment de l'achat, j'ai Windows XP Pro sur mon PC.

D'avance merci de votre éclairage et aide.

Ci-après le rapport de highjack

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15:00:57, on 15/02/2008
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:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\Program Files\McAfee\MBK\MBackMonitor.exe
C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
c:\PROGRA~1\FICHIE~1\mcafee\mna\mcnasvc.exe
c:\PROGRA~1\FICHIE~1\mcafee\mcproxy\mcproxy.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
C:\Program Files\McAfee\MPF\MPFSrv.exe
C:\Program Files\McAfee\MSK\MskSrver.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\Program Files\SiteAdvisor\6172\SAService.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\McAfee.com\Agent\mcagent .exe
C:\WINDOWS\system32\TCtrlIOHook.exe
C:\WINDOWS\system32\TPSMain.exe
C:\Program Files\TOSHIBA\Commandes TOSHIBA\TFncKy.exe
C:\Program Files\TOSHIBA\ConfigFree\NDSTray.exe
C:\Program Files\TOSHIBA\ConfigFree\CFSServ.exe
C:\WINDOWS\system32\TPSBattM.exe
C:\Program Files\TOSHIBA\ConfigFree\CFXFER.exe
C:\Program Files\McAfee\MBK\McAfeeDataBackup.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer .exe
C:\Program Files\Nikon\NkView5\NkvMon.exe
C:\WINDOWS\system32\RAMASST.exe
C:\Program Files\ePrompter\ePrompter.exe
C:\PROGRA~1\Webshots\Webshots.scr
C:\Program Files\McAfee\MSC\mcuimgr.exe
C:\Program Files\Sonic\RecordNow!\RecordNow.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://fr.yahoo.com/?p=us
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F3 - REG:win.ini: load=C:\WINDOWS\system32\jkhfc.exe
O3 - Toolbar: (no name) - {C17590D2-ECB4-4b15-8820-F58798DCC118} - (no file)
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Veoh Browser Plug-in - {D0943516-5076-4020-A3B5-AEFAF26AB263} - C:\Program Files\Veoh Networks\Veoh\Plugins\reg\VeohToolbar.dll
O3 - Toolbar: McAfee SiteAdvisor - {0BF43445-2F28-4351-9252-17FE6E806AA0} - C:\Program Files\SiteAdvisor\6172\SiteAdv.dll
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: [LtMoh] C:\Program Files\ltmoh\Ltmoh.exe
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint2K\Apoint.exe
O4 - HKLM\..\Run: [CeEKEY] C:\Program Files\TOSHIBA\E-KEY\CeEKey.exe
O4 - HKLM\..\Run: [TPNF] C:\Program Files\TOSHIBA\TouchPad\TPTray.exe
O4 - HKLM\..\Run: [PadTouch] C:\Program Files\TOSHIBA\Touch and Launch\PadExe.exe
O4 - HKLM\..\Run: [HWSetup] C:\Program Files\TOSHIBA\TOSHIBA Applet\HWSetup.exe hwSetUP
O4 - HKLM\..\Run: [TCtryIOHook] TCtrlIOHook.exe
O4 - HKLM\..\Run: [TPSMain] TPSMain.exe
O4 - HKLM\..\Run: [TFncKy] TFncKy.exe
O4 - HKLM\..\Run: [Tvs] C:\Program Files\TOSHIBA\Tvs\TvsTray.exe
O4 - HKLM\..\Run: [NDSTray.exe] NDSTray.exe
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [CFSServ.exe] CFSServ.exe -NoClient
O4 - HKLM\..\Run: [Logitech Hardware Abstraction Layer] "C:\Program Files\Fichiers communs\Logitech\KhalShared\KHALMNPR.EXE"
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\system32\PSDrvCheck.exe -CheckReg
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask .exe" -atboottime
O4 - HKLM\..\Run: [USB2Check] RUNDLL32.EXE "C:\WINDOWS\system32\PCLECoInst.dll",CheckUSBController
O4 - HKLM\..\Run: [USBToolTip] "C:\Program Files\Pinnacle\Shared Files\Programs\USBTip\USBTip.exe"
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [mcagent_exe] C:\Program Files\McAfee.com\Agent\mcagent.exe /runkey
O4 - HKLM\..\Run: [SiteAdvisor] C:\Program Files\SiteAdvisor\6172\SiteAdv.exe
O4 - HKLM\..\Run: [McENUI] C:\PROGRA~1\McAfee\MHN\McENUI.exe /hide
O4 - HKLM\..\Run: [Salestart] "C:\Program Files\Fichiers communs\StorageProtector\strpmon.exe" dm=http://storageprotector.com ad=http://storageprotector.com sd=http://inspaid.storageprotector.com
O4 - HKLM\..\Run: [McAfee Backup] C:\Program Files\McAfee\MBK\McAfeeDataBackup.exe
O4 - HKLM\..\Run: [MBkLogOnHook] C:\Program Files\McAfee\MBK\LogOnHook.exe
O4 - HKLM\..\Run: [ec46a953] rundll32.exe "C:\WINDOWS\system32\yyiumhrw.dll",b
O4 - HKLM\..\RunOnce: [SpybotDeletingA6912] command /c del "C:\WINDOWS\system32\lqlmtjyn.dllbox"
O4 - HKLM\..\RunOnce: [SpybotDeletingA4923] command /c del "C:\WINDOWS\system32\lqlmtjyn.dll"
O4 - HKLM\..\RunOnce: [SpybotDeletingC9621] cmd /c del "C:\WINDOWS\system32\lqlmtjyn.dll"
O4 - HKLM\..\RunOnce: [SpybotDeletingA2525] command /c del "C:\WINDOWS\system32\jkhfc.dll_old"
O4 - HKLM\..\RunOnce: [SpybotDeletingC6923] cmd /c del "C:\WINDOWS\system32\jkhfc.dll_old"
O4 - HKLM\..\RunOnce: [SpybotDeletingA3768] command /c del "C:\WINDOWS\system32\jkhfc.dll"
O4 - HKLM\..\RunOnce: [SpybotDeletingC3257] cmd /c del "C:\WINDOWS\system32\jkhfc.dll"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [TOSCDSPD] C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [Veoh] "C:\Program Files\Veoh Networks\Veoh\VeohClient.exe" /VeohHide
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\RunOnce: [SpybotDeletingB4731] command /c del "C:\WINDOWS\system32\lqlmtjyn.dll"
O4 - HKCU\..\RunOnce: [SpybotDeletingD6340] cmd /c del "C:\WINDOWS\system32\lqlmtjyn.dll"
O4 - HKCU\..\RunOnce: [SpybotDeletingB8510] command /c del "C:\WINDOWS\system32\jkhfc.dll_old"
O4 - HKCU\..\RunOnce: [SpybotDeletingD151] cmd /c del "C:\WINDOWS\system32\jkhfc.dll_old"
O4 - HKCU\..\RunOnce: [SpybotDeletingB2384] command /c del "C:\WINDOWS\system32\jkhfc.dll"
O4 - HKCU\..\RunOnce: [SpybotDeletingD2530] cmd /c del "C:\WINDOWS\system32\jkhfc.dll"
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: ePrompter.lnk = C:\Program Files\ePrompter\ePrompter.exe
O4 - Startup: Webshots.lnk = C:\Program Files\Webshots\Launcher.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Logitech SetPoint.lnk = ?
O4 - Global Startup: NkvMon.exe.lnk = C:\Program Files\Nikon\NkView5\NkvMon.exe
O4 - Global Startup: RAMASST.lnk = C:\WINDOWS\system32\RAMASST.exe
O8 - Extra context menu item: &Webshots Photo Search - res://C:\Program Files\Webshots\WSToolbar4IE.dll/MENUSEARCH.HTM
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: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Ouvrir dans un nouvel onglet d'arrière-plan - res://C:\Program Files\Windows Live Toolbar\Components\fr-be\msntabres.dll.mui/229?755d8e2f552b43648ae9dca682333625
O8 - Extra context menu item: Ouvrir dans un nouvel onglet de premier plan - res://C:\Program Files\Windows Live Toolbar\Components\fr-be\msntabres.dll.mui/230?755d8e2f552b43648ae9dca682333625
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_03\bin\npjpi150_03.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_03\bin\npjpi150_03.dll
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.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: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/mcfscan/2,2,0,5209/mcfscan.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O23 - Service: ConfigFree Service (CFSvcs) - TOSHIBA CORPORATION - C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: MBackMonitor - McAfee - C:\Program Files\McAfee\MBK\MBackMonitor.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - c:\PROGRA~1\FICHIE~1\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Scanner (McODS) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
O23 - Service: McAfee Proxy Service (McProxy) - McAfee, Inc. - c:\PROGRA~1\FICHIE~1\mcafee\mcproxy\mcproxy.exe
O23 - Service: McAfee Real-time Scanner (McShield) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
O23 - Service: McAfee SystemGuards (McSysmon) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee, Inc. - C:\Program Files\McAfee\MPF\MPFSrv.exe
O23 - Service: Microsoft cache control (MSControlService) - Unknown owner - C:\WINDOWS\system32\windows (file missing)
O23 - Service: McAfee Anti-Spam Service (MSK80Service) - McAfee, Inc. - C:\Program Files\McAfee\MSK\MskSrver.exe
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Service SiteAdvisor (SiteAdvisor Service) - Unknown owner - C:\Program Files\SiteAdvisor\6172\SAService.exe