Virus ou pas ?

Bonjour,
Je pense que mon pc est infecté j'arrive plus a ouvrir certain de mes logiciel obligé de réinstallé ma barre de navigation et impossible de faire une restauration système
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:42:48, on 18/11/2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v8.00 (8.00.6001.18828)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Windows\RtHDVCpl.exe
C:\Acer\Empowering Technology\SysMonitor.exe
C:\Acer\Empowering Technology\eDataSecurity\eDSloader.exe
C:\Program Files\Avira\AntiVir Desktop\avgnt.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\Spyware Terminator\SpywareTerminatorShield.Exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Program Files\Spyware Terminator\SpywareTerminatorUpdate.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Windows\system32\wuauclt.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Windows\system32\SearchFilterHost.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://moteur.chat-land.org/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.cherche.us/keyword/%s
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://ww12.cherche.us
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://ww12.cherche.us
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.orange/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://fr.fr.acer.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://www.cherche.us/keyword/%s
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page_bak = http://ww12.cherche.us
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: (no name) - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - (no file)
O1 - Hosts: ::1 localhost
O2 - BHO: (no name) - {01398B87-61AF-4FFB-9AB5-1A1C5FB39A9C} - (no file)
O2 - BHO: Shareaza Web Download Hook - {0EEDB912-C5FA-486F-8334-57288578C627} - E:\Shareaza\RazaWebHook32.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {3049C3E9-B461-4BC5-8870-4C09146192CA} - (no file)
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live ID - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll (file missing)
O2 - BHO: (no name) - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - (no file)
O2 - BHO: (no name) - {DBC80044-A445-435b-BC74-9C25C1C588A9} - (no file)
O2 - BHO: (no name) - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - (no file)
O2 - BHO: (no name) - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - (no file)
O3 - Toolbar: Acer eDataSecurity Management - {5CBE3B7C-1E47-477e-A7DD-396DB0476E29} - C:\Windows\system32\eDStoolbar.dll
O3 - Toolbar: (no name) - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - (no file)
O3 - Toolbar: (no name) - {01398B87-61AF-4FFB-9AB5-1A1C5FB39A9C} - (no file)
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe
O4 - HKLM\..\Run: [Acer Empowering Technology Monitor] C:\Acer\Empowering Technology\SysMonitor.exe
O4 - HKLM\..\Run: [eDataSecurity Loader] C:\Acer\Empowering Technology\eDataSecurity\eDSloader.exe
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SpywareTerminator] "C:\Program Files\Spyware Terminator\SpywareTerminatorShield.exe"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [SpywareTerminatorUpdate] "C:\Program Files\Spyware Terminator\SpywareTerminatorUpdate.exe"
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [] (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [] (User 'Default user')
O4 - Global Startup: PCM Media Sharing.lnk = C:\Program Files\Acer Arcade Live\Acer HomeMedia Connect\Kernel\DMS\PCMMediaSharing.exe
O8 - Extra context menu item: Download with &Shareaza - res://E:\Shareaza\RazaWebHook32.dll/3000
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: Tout télécharger avec Free Download Manager - file://C:\Program Files\Free Download Manager\dlall.htm
O8 - Extra context menu item: Télécharger avec Free Download Manager - file://C:\Program Files\Free Download Manager\dllink.htm
O8 - Extra context menu item: Télécharger la sélection avec Free Download Manager - file://C:\Program Files\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Télécharger la vidéo avec Free Download Manager - file://C:\Program Files\Free Download Manager\dlfvideo.htm
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - (no file)
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - (no file)
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - (no file)
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - (no file)
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\Windows\bdoscandel.exe
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\Windows\bdoscandel.exe
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - (no file)
O9 - Extra button: (no name) - cmdmapping - (no file) (HKCU)
O10 - Broken Internet access because of LSP provider 'c:\program files\bonjour\mdnsnsp.dll' missing
O13 - Gopher Prefix:
O15 - Trusted Zone: *.chat-land.org
O15 - Trusted Zone: https://applications-et-logiciels.orange.fr/
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scanner/sources/en/scan8/oscan8.cab
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.dll (file missing)
O23 - Service: ePerformance Service (AcerMemUsageCheckService) - Unknown owner - C:\Acer\Empowering Technology\ePerformance\MemCheck.exe
O23 - Service: Avira AntiVir Planificateur (AntiVirSchedulerService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Apple Mobile Device - Unknown owner - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe (file missing)
O23 - Service: Ati External Event Utility - ATI Technologies Inc. - C:\Windows\system32\Ati2evxx.exe
O23 - Service: eDSService.exe (eDataSecurity Service) - HiTRSUT - C:\Acer\Empowering Technology\eDataSecurity\eDSService.exe
O23 - Service: eRecovery Service (eRecoveryService) - Acer Inc. - C:\Acer\Empowering Technology\eRecovery\eRecoveryService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Unknown owner - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe (file missing)
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Unknown owner - C:\Program Files\Common Files\LightScribe\LSSrvc.exe (file missing)
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: Microsoft Office Diagnostics Service (odserv) - Unknown owner - C:\Program Files\Common Files\Microsoft Shared\OFFICE12\ODSERV.EXE (file missing)
O23 - Service: Office Source Engine (ose) - Unknown owner - C:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE (file missing)
O23 - Service: ProtexisLicensing - Unknown owner - C:\Windows\system32\PSIService.exe
O23 - Service: Spyware Terminator Realtime Shield Service (sp_rssrv) - Crawler.com - C:\Program Files\Spyware Terminator\sp_rsser.exe
O23 - Service: SpeedTouch 330 Manager (st330service) - Unknown owner - C:\Program Files/Thomson/ST330/service/st330service.exe (file missing)
O23 - Service: @%SystemRoot%\System32\TuneUpDefragService.exe,-1 (TuneUp.Defrag) - TuneUp Software GmbH - C:\Windows\System32\TuneUpDefragService.exe
O23 - Service: Windows Live ID Sign-in Assistant (wlidsvc) - Unknown owner - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WLIDSVC.EXE (file missing)
O23 - Service: Marvell Yukon Service (yksvc) - Unknown owner - RUNDLL32.EXE (file missing)