Attaqué par Win32:StartPage-444 [Trj]

Bonjour,
je suis attaqué (embété ?) par un trojan. Après lecture du forum, j'ai téléchargé Hijackthis vers 1.99 et je transmet le rapport. Ma qustion est que faire maintenant ?
Merci pour votre aide et réponse.

Rapport :

Logfile of HijackThis v1.99.1
Scan saved at 14:11:31, on 30/11/2007
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\WINDOWS\system32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe
C:\Program Files\Launch Manager\LaunchAp.exe
C:\Program Files\Nero\Nero8\InCD\InCDsrv.exe
C:\Program Files\Launch Manager\PowerKey.exe
C:\Program Files\Launch Manager\HotkeyApp.exe
C:\Program Files\Launch Manager\CtrlVol.exe
C:\Program Files\Launch Manager\OSDCtrl.exe
C:\Program Files\Launch Manager\Wbutton.exe
C:\Program Files\Acer\Notebook Manager\almxptray.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\WINDOWS\System32\wltrysvc.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\System32\bcmwltry.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\Winamp\winampa.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Nero\Nero8\InCD\NBHGui.exe
C:\Program Files\Nero\Nero8\InCD\InCD.exe
C:\WINDOWS\System32\nvsvc86.exe
C:\Program Files\Messenger\MSMSGS.EXE
C:\Program Files\Fichiers communs\Nero\Lib\NMBgMonitor.exe
C:\Program Files\Last.fm\LastFMHelper.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Fichiers communs\Nero\Lib\NMIndexingService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashSimpl.exe
C:\Program Files\Alwil Software\Avast4\ashChest.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Hijackthis Version Française\hijackthis vf.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll (file missing)
O2 - BHO: (no name) - {B499D34E-58EF-4927-AB9F-7AF52B2C4C82} - C:\Program Files\Video Add-on\isfmdl.dll (file missing)
O2 - BHO: Ask Toolbar BHO - {FE063DB1-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll (file missing)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Ask Toolbar - {FE063DB9-4EC0-403e-8DD8-394C54984B2C} - C:\Program Files\AskTBar\bar\1.bin\ASKTBAR.DLL (file missing)
O3 - Toolbar: IE Custom Tools - {062F3F8B-CB94-4D76-A98A-EF800A438F01} - C:\Program Files\Video Add-on\ictmdl.dll (file missing)
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe"
O4 - HKLM\..\Run: [LaunchAp] C:\Program Files\Launch Manager\LaunchAp.exe
O4 - HKLM\..\Run: [PowerKey] "C:\Program Files\Launch Manager\PowerKey.exe"
O4 - HKLM\..\Run: [LManager] C:\Program Files\Launch Manager\HotkeyApp.exe
O4 - HKLM\..\Run: [CtrlVol] C:\Program Files\Launch Manager\CtrlVol.exe
O4 - HKLM\..\Run: [LMgrOSD] C:\Program Files\Launch Manager\OSDCtrl.exe
O4 - HKLM\..\Run: [Wbutton] "C:\Program Files\Launch Manager\Wbutton.exe"
O4 - HKLM\..\Run: [AcerNotebookManager] C:\Program Files\Acer\Notebook Manager\almxptray.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Fichiers communs\Nero\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [SecurDisc] C:\Program Files\Nero\Nero8\InCD\NBHGui.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Nero\Nero8\InCD\InCD.exe
O4 - HKLM\..\Run: [Network Security XP] C:\WINDOWS\System32\nvsvc86.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\MSMSGS.EXE" /background
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Nero\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [Network Security XP] C:\WINDOWS\System32\nvsvc86.exe
O4 - Global Startup: Last.fm Helper.lnk = C:\Program Files\Last.fm\LastFMHelper.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra button: Traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm
O9 - Extra 'Tools' menuitem: Traduire - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm
O9 - Extra button: (no name) - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm
O9 - Extra 'Tools' menuitem: Personnaliser les options de traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
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
O9 - Extra button: Traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm (HKCU)
O9 - Extra 'Tools' menuitem: Traduire - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - C:\Program Files\PROMT5\PROMTIE4\promtie5.htm (HKCU)
O9 - Extra button: (no name) - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm (HKCU)
O9 - Extra 'Tools' menuitem: Personnaliser les options de traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - C:\Program Files\PROMT5\PROMTIE4\options.htm (HKCU)
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://download.microsoft.com/download/E/5/6/E5611B10-0D6D-4117-8430-A67417AA88CD/LegitCheckControl.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{868CAC8B-E829-44A6-9E9F-A31D3587FB21}: NameServer = 212.27.53.252,212.27.54.252
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Google Updater Service (gusvc) - Unknown owner - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe (file missing)
O23 - Service: InCD Helper (InCDsrv) - Nero AG - C:\Program Files\Nero\Nero8\InCD\InCDsrv.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Fichiers communs\Nero\Lib\NMIndexingService.exe
O23 - Service: WLTRYSVC - Unknown owner - C:\WINDOWS\System32\wltrysvc.exe