Mon pc est lent et je crois que c'est un Viru

Mon Pc galère et je crois qu'il est infecté, voici mon log hijackthis, ceux qui ont une idée j'attends vos suggestions:

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\Advanced System Optimizer 3\ASO3DefragSrv.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\McAfee\Common Framework\FrameworkService.exe
C:\Program Files\McAfee\VirusScan Enterprise\mcshield.exe
C:\Program Files\McAfee\VirusScan Enterprise\vstskmgr.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\ehome\ehtray.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\System32\DLA\DLACTRLW.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\TOSHIBA\TOSHIBA Zooming Utility\SmoothView.exe
C:\Program Files\Toshiba\Tvs\TvsTray.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\Program Files\Toshiba\Toshiba Applet\thotkey.exe
C:\Program Files\TOSHIBA\TOSHIBA Controls\TFncKy.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\system32\TPSMain.exe
C:\Program Files\Synaptics\SynTP\SynToshiba.exe
C:\Program Files\McAfee\VirusScan Enterprise\SHSTAT.EXE
C:\WINDOWS\system32\TPSBattM.exe
C:\Program Files\McAfee\Common Framework\UdaterUI.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Advanced System Optimizer 3\systemprotector.exe
C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
C:\Program Files\Advanced System Optimizer 3\ASO3.exe
C:\WINDOWS\system32\RAMASST.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Program Files\Microsoft Office\Office12\WINWORD.EXE
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Program Files\Mozilla Firefox 3.5 Beta 4\firefox.exe

O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [DLA] C:\WINDOWS\System32\DLA\DLACTRLW.EXE
O4 - HKLM\..\Run: [SmoothView] C:\Program Files\TOSHIBA\TOSHIBA Zooming Utility\SmoothView.exe
O4 - HKLM\..\Run: [Tvs] C:\Program Files\Toshiba\Tvs\TvsTray.exe
O4 - HKLM\..\Run: [THotkey] C:\Program Files\Toshiba\Toshiba Applet\thotkey.exe
O4 - HKLM\..\Run: [TFncKy] TFncKy.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.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: [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: [TPSMain] TPSMain.exe
O4 - HKLM\..\Run: [ShStatEXE] "C:\Program Files\McAfee\VirusScan Enterprise\SHSTAT.EXE" /STANDALONE
O4 - HKLM\..\Run: [McAfeeUpdaterUI] "C:\Program Files\McAfee\Common Framework\UdaterUI.exe" /StartedFromRunKey
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [SystemProtector] "C:\Program Files\Advanced System Optimizer 3\systemprotector.exe" /autorun
O4 - HKCU\..\Run: [TOSCDSPD] C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
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 - .DEFAULT User Startup: IEHOME.LNK = C:\Documents and Settings\Default User\Local Settings\Temp\iehome.bat (User 'Default user')
O4 - Global Startup: RAMASST.lnk = C:\WINDOWS\system32\RAMASST.exe
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe (file missing)
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MI1933~1\Office12\REFIEBAR.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: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} (HardwareDetection Control) - http://www.ma-config.com/activex/MaConfig_3_5_3_0.cab
O16 - DPF: {F27237D7-93C8-44C2-AC6E-D6057B9A918F} (JuniperSetupClientControl Class) - https://juniper.net/dana-cached/sc/JuniperSetupClient.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O23 - Service: ASO3DiskOptimizer - Systweak Inc. - C:\Program Files\Advanced System Optimizer 3\ASO3DefragSrv.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.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: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - C:\Program Files\ma-config.com\maconfservice.exe
O23 - Service: McAfee Framework Service (McAfeeFramework) - McAfee, Inc. - C:\Program Files\McAfee\Common Framework\FrameworkService.exe
O23 - Service: McAfee McShield (McShield) - McAfee, Inc. - C:\Program Files\McAfee\VirusScan Enterprise\mcshield.exe
O23 - Service: McAfee Task Manager (McTaskManager) - McAfee, Inc. - C:\Program Files\McAfee\VirusScan Enterprise\vstskmgr.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: LiveShare P2P Server 9 (RoxLiveShare9) - Sonic Solutions - C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxLiveShare9.exe
O23 - Service: Roxio Hard Drive Watcher 9 (RoxWatch9) - Sonic Solutions - C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxWatch9.exe
O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: TOSHIBA Application Service (TAPPSRV) - TOSHIBA Corp. - C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe