Mon ordinateur redémarre tout seul. Virus?

Bonjour,
Mon ordinateur redémarre tout seul de temps en temps. je me demande si j'ai pas chopé un virus.
Pouvez-vous m'aider à analyser mon scan ? merci à vous
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:13:24, on 03/12/2007
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\WINDOWS\Explorer.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\Fichiers communs\Acronis\Schedule2\schedul2.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Fichiers communs\InterVideo\DeviceService\DevSvc.exe
C:\Program Files\ASUS\Mobile Theater\Kernel\TV\CLCapSvc.exe
C:\Program Files\ASUS\Mobile Theater\Kernel\CLML_NTService\CLMLServer.exe
C:\Program Files\ASUS\Mobile Theater\Kernel\CLML_NTService\CLMLService.exe
c:\WINDOWS\system32\IFXSPMGT.exe
c:\WINDOWS\system32\IFXTCS.exe
C:\WINDOWS\system32\RemoteControlService.exe
c:\Program Files\Infineon\Security Platform Software\PSDsrvc.EXE
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\Program Files\Photodex\ProShowProducer\ScsiAccess.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Fichiers communs\Ulead Systems\DVD\ULCDRSvr.exe
C:\Program Files\ASUS\Mobile Theater\Kernel\TV\CLSched.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
c:\Program Files\Infineon\Security Platform Software\PSDrt.exe
c:\Program Files\Infineon\Security Platform Software\SpTna.exe
C:\WINDOWS\ATK0100\HControl.exe
C:\WINDOWS\sm56hlpr.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\ASUS\Splendid\ACMON.exe
C:\Program Files\Wireless Console 2\wcourier.exe
C:\WINDOWS\system32\ACEngSvr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\ASUS\Power4 Gear\BatteryLife.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\Program Files\Intel\Wireless\Bin\EOUWiz.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
C:\Program Files\Unlocker\UnlockerAssistant.exe
C:\Program Files\MemAv_V1_2\MemAv.exe
C:\Program Files\Fichiers communs\LogiShrd\LComMgr\Communications_Helper.exe
C:\Program Files\Labtec\WebCam10\WebCam10.exe
C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\ooVoo\ooVoo.exe
C:\Program Files\Nokia\PC Connectivity Solution\ServiceLayer.exe
C:\Program Files\Copernic Desktop Search 2\DesktopSearchService.exe
C:\Program Files\RSSoft\RedSwoosh.exe
C:\Program Files\Pando Networks\Pando\pando.exe
C:\Program Files\Google\Google Talk\googletalk.exe
C:\Program Files\Fichiers communs\LogiShrd\LComMgr\LVComSX.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtMng.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosA2dp.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtHid.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtBty.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtHsp.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\tosOBEX.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\tosBtProc.exe
C:\Program Files\Skype\Plugin Manager\skypePM.exe
C:\Program Files\Lavasoft\Ad-Aware 2007\Ad-Aware2007.exe
C:\Program Files\AxBx\Multi Virus Cleaner 2007\MVC.exe
C:\Program Files\AxBx\Multi Virus Cleaner 2007\MVC.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = C:\Program Files\Copernic Agent\Web\SearchBar.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.asus.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.asus.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: CInterceptor Object - {38D3FE60-3D53-4F37-BB0E-C7A97A26A156} - C:\Program Files\Pando Networks\Pando\PandoIEPlugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {C451C08A-EC37-45DF-AAAD-18B51AB5E837} - (no file)
O3 - Toolbar: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Copernic Agent - {F2E259E8-0FC8-438C-A6E0-342DD80FA53E} - C:\Program Files\Copernic Agent\CopernicAgentExt.dll
O3 - Toolbar: Copernic Desktop Search 2 - {968631B6-4729-440D-9BF4-251F5593EC9A} - C:\Program Files\Copernic Desktop Search 2\DesktopSearchBand201013011.dll
O3 - Toolbar: (no name) - {31CF9EBE-5755-4A1D-AC25-2834D952D9B4} - (no file)
O4 - HKLM\..\Run: [HControl] C:\WINDOWS\ATK0100\HControl.exe
O4 - HKLM\..\Run: [SMSERIAL] sm56hlpr.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [ACMON] C:\Program Files\ASUS\Splendid\ACMON.exe
O4 - HKLM\..\Run: [Wireless Console 2] C:\Program Files\Wireless Console 2\wcourier.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [ABLKSR] C:\windows\ABLKSR\ABLKSR.exe
O4 - HKLM\..\Run: [Power_Gear] C:\Program Files\ASUS\Power4 Gear\BatteryLife.exe 1
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: [EOUApp] "C:\Program Files\Intel\Wireless\Bin\EOUWiz.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\system32\\PSDrvCheck.exe
O4 - HKLM\..\Run: [UnlockerAssistant] "C:\Program Files\Unlocker\UnlockerAssistant.exe"
O4 - HKLM\..\Run: [MemAv] C:\Program Files\MemAv_V1_2\MemAv.exe
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "C:\Program Files\Fichiers communs\LogiShrd\LComMgr\Communications_Helper.exe"
O4 - HKLM\..\Run: [LogitechQuickCamRibbon] "C:\Program Files\Labtec\WebCam10\WebCam10.exe" /hide
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE -startup
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Fichiers communs\Ahead\Lib\NeroCheck.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [ooVoo.exe] C:\Program Files\ooVoo\ooVoo.exe /minimized
O4 - HKCU\..\Run: [Copernic Desktop Search 2] "C:\Program Files\Copernic Desktop Search 2\DesktopSearchService.exe" /tray
O4 - HKCU\..\Run: [Red Swoosh] C:\Program Files\RSSoft\RedSwoosh.exe /S
O4 - HKCU\..\Run: [Pando] "C:\Program Files\Pando Networks\Pando\pando.exe" /Minimized
O4 - HKCU\..\Run: [googletalk] "C:\Program Files\Google\Google Talk\googletalk.exe" /autostart
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 - Global Startup: Bluetooth Manager.lnk = ?
O8 - Extra context menu item: Chercher avec Copernic Agent - C:\Program Files\Copernic Agent\Web\SearchExt.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: (no name) - {193B17B0-7C9F-4D5B-AEAB-8D3605EFC084} - C:\PROGRA~1\COPERN~1\COPERN~1.EXE
O9 - Extra 'Tools' menuitem: Démarrer Copernic Agent - {193B17B0-7C9F-4D5B-AEAB-8D3605EFC084} - C:\PROGRA~1\COPERN~1\COPERN~1.EXE
O9 - Extra button: Copernic Agent - {688DC797-DC11-46A7-9F1B-445F4F58CE6E} - C:\PROGRA~1\COPERN~1\COPERN~1.EXE
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
O14 - IERESET.INF: START_PAGE_URL=http://www.asus.com
O15 - Trusted Zone: *.registration.sonystyle-europe.com (HKLM)
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/...
O17 - HKLM\System\CCS\Services\Tcpip\..\{8A8AB0A7-BAD3-410E-AAC9-AFA70B4A0607}: NameServer = 192.168.1.1,212.27.32.176
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft AB - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Fichiers communs\Acronis\Schedule2\schedul2.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.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: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Capture Device Service - InterVideo Inc. - C:\Program Files\Fichiers communs\InterVideo\DeviceService\DevSvc.exe
O23 - Service: CyberLink Background Capture Service (CBCS) (CLCapSvc) - Unknown owner - C:\Program Files\ASUS\Mobile Theater\Kernel\TV\CLCapSvc.exe
O23 - Service: CyberLink Task Scheduler (CTS) (CLSched) - Unknown owner - C:\Program Files\ASUS\Mobile Theater\Kernel\TV\CLSched.exe
O23 - Service: CyberLink Media Library Service - Cyberlink - C:\Program Files\ASUS\Mobile Theater\Kernel\CLML_NTService\CLMLServer.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.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: Security Platform Management Service (IFXSpMgtSrv) - Infineon Technologies AG - c:\WINDOWS\system32\IFXSPMGT.exe
O23 - Service: Trusted Platform Core Service (IFXTCS) - Infineon Technologies AG - c:\WINDOWS\system32\IFXTCS.exe
O23 - Service: ITE Remote Control Service (ITECIRService) - ITE Tech. Inc. - C:\WINDOWS\system32\RemoteControlService.exe
O23 - Service: LVSrvLauncher - Labtec Inc. - C:\Program Files\Fichiers communs\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
O23 - Service: Personal Secure Drive Service (PersonalSecureDriveService) - Infineon Technologies AG - c:\Program Files\Infineon\Security Platform Software\PSDsrvc.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: ScsiAccess - Unknown owner - C:\Program Files\Photodex\ProShowProducer\ScsiAccess.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\Nokia\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: Ulead Burning Helper (UleadBurningHelper) - Ulead Systems, Inc. - C:\Program Files\Fichiers communs\Ulead Systems\DVD\ULCDRSvr.exe
End of file - 13884 bytes

Configuration: Windows XP
FireFox