Trojans infection

Bonjour,
j ai un gros soucis sur le pc de ma fille !
j ai compris qu il y avait un probleme quand antivir ne faisait plus de mise a jour.
apres plusieurs scans : anti malware , a2 ,antivir,windows oneline ..
plusieurs trojans trouvés mis en quarantaine ..
j ai desinstallé antivir fait nettoyage avec logiciel d antivir pour base registre puis reinstalle antivir pas de resultat
( mise a jour impossible )
j ai donc installé un autre antivirus ( Pc tool ) pas terrible mais mieux que rien !

je pensais avoir resolu mes soucis ,mais hier soir le pare feu PC TOOL etait en panne !
imposiible de deinstallé ...... remis celui de windows .

je joint scan hijack :

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 09:33:30, on 19/02/2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18000)
Boot mode: Normal

Running processes:
C:\Windows\System32\smss.exe
C:\Windows\system32\csrss.exe
C:\Windows\system32\wininit.exe
C:\Windows\system32\csrss.exe
C:\Windows\system32\services.exe
C:\Windows\system32\lsass.exe
C:\Windows\system32\lsm.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\winlogon.exe
C:\Windows\system32\SLsvc.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
C:\Windows\System32\spoolsv.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\taskeng.exe
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Windows\system32\taskeng.exe
C:\Windows\RtHDVCpl.exe
C:\Program Files\Apoint2K\Apoint.exe
C:\Program Files\Power Manager\PM.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\PC Tools Firewall Plus\FirewallGUI.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\PC Tools AntiVirus\PCTAV.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Windows\ehome\ehtray.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Windows\System32\rundll32.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\a-squared Free\a2service.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe
c:\Program Files\Common Files\InterVideo\RegMgr\iviRegMgr.exe
C:\Program Files\Nero\Nero8\Nero BackItUp\NBService.exe
C:\Program Files\PC Tools AntiVirus\PCTAVSvc.exe
C:\Windows\system32\svchost.exe
C:\Program Files\CyberLink\Shared Files\RichVideo.exe
C:\Windows\system32\svchost.exe
C:\Program Files\Fujitsu Siemens Computers\SystemDiagnostics\OnlineDiagnostic\TestManager\TestHandler.exe
C:\Windows\System32\svchost.exe
C:\Windows\system32\SearchIndexer.exe
C:\Windows\system32\DRIVERS\xaudio.exe
C:\Program Files\Windows Media Player\wmpnetwk.exe
C:\Windows\System32\alg.exe
C:\Windows\system32\wbem\wmiprvse.exe
C:\Program Files\Apoint2K\ApMsgFwd.exe
C:\Program Files\Apoint2K\Apntex.exe
C:\Windows\system32\SearchProtocolHost.exe
C:\Windows\system32\SearchFilterHost.exe
\?\C:\Windows\system32\wbem\WMIADAP.EXE
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Windows\system32\wbem\wmiprvse.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint2K\Apoint.exe
O4 - HKLM\..\Run: [PowerManager] C:\Program Files\Power Manager\PM.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Common Files\Nero\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\Run: [Google EULA Launcher] c:\Program Files\Google\Google EULA\GoogleEULALauncher.exe IE PA
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart
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: [00PCTFW] "C:\Program Files\PC Tools Firewall Plus\FirewallGUI.exe" -s
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [PCTAVApp] "C:\Program Files\PC Tools AntiVirus\PCTAV.exe" /MONITORSCAN
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe
O4 - HKCU\..\Run: [fsc-reg] C:\ProgramData\fsc-reg\fscreg.exe 20090216
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
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: [Picasa Media Detector] C:\Program Files\Picasa2\PicasaMediaDetector.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [Picasa Media Detector] C:\Program Files\Picasa2\PicasaMediaDetector.exe (User 'Default user')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
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: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\Windows\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\Windows\bdoscandel.exe (file missing)
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O13 - Gopher Prefix:
O15 - Trusted Zone: https://www.bitdefender.fr/
O15 - Trusted Zone: https://www.bing.com/search?q=onecare%20live&form=MSDTR1&toHttps=1&redig=1C92C1A5A5B14363B76B4872209A5D58
O15 - Trusted Zone: http://www.secuser.com
O15 - Trusted Zone: https://www.trendmicro.com/en_us/forHome/products/housecall.html
O15 - Trusted Zone: http://housecall65.trendmicro.com
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~2\GOEC62~1.DLL
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.DLL
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: Google Desktop Manager 5.7.802.22438 (GoogleDesktopManager-022208-143751) - Google - C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: IviRegMgr - InterVideo - c:\Program Files\Common Files\InterVideo\RegMgr\iviRegMgr.exe
O23 - Service: Nero BackItUp Scheduler 3 - Nero AG - C:\Program Files\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Nero\Lib\NMIndexingService.exe
O23 - Service: PC Tools AntiVirus Engine (PCTAVSvc) - PC Tools Research Pty Ltd - C:\Program Files\PC Tools AntiVirus\PCTAVSvc.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe
O23 - Service: Fujitsu Siemens Computers Diagnostic Testhandler (TestHandler) - Fujitsu Siemens Computers - C:\Program Files\Fujitsu Siemens Computers\SystemDiagnostics\OnlineDiagnostic\TestManager\TestHandler.exe
O23 - Service: XAudioService - Conexant Systems, Inc. - C:\Windows\system32\DRIVERS\xaudio.exe