J'ai le même problème et voici mon rapport.
Que faire?
Logfile of HijackThis v1.99.1
Scan saved at 15:36:59, on 27/04/2007
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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\Ahead\InCD\InCDsrv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\HPZipm12.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wdfmgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\dllChache\Empty.jpg
C:\WINDOWS\System32\dllChache\Blank.doc
C:\WINDOWS\System32\dllChache\Zero.txt
C:\WINDOWS\System32\dllChache\Hole.zip
C:\WINDOWS\System32\dllChache\Unoccupied.reg
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\System32\taskmgr.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Documents and Settings\Guy Bertrand\Bureau\avast nettoyeur.exe
C:\Documents and Settings\Guy Bertrand\Bureau\avast nettoyeur.tmp
C:\Program Files\Winamp\winampa.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fppdis3a.exe
C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.908.5008\GoogleToolbarNotifier.exe
C:\Program Files\SuperCopier2\SuperCopier2.exe
C:\Program Files\TuneUp Utilities 2006\MemOptimizer.exe
C:\Program Files\Easy\TV Capture\RemoteCtl.exe
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\Documents and Settings\Guy Bertrand\Bureau\abcde.exe\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\userinit.exe, "C:\WINDOWS\System32\M5VBVM60.EXE StartUp"
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [pdfFactory Dispatcher v3] "C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fppdis3a.exe" /source=HKLM
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe"
O4 - HKLM\..\Run: [Blank AntiViri] C:\AUT0EXEC.BAT StartUp
O4 - HKLM\..\Run: [LanzarL2007] "C:\DOCUME~1\GUYBER~1\LOCALS~1\Temp\{7E0E9483-F066-4C1A-9A69-FDEFAD9D8091}\{D1DA2BA7-2592-4036-9BB2-DCCABDE8DC1A}\..\..\L2007tmp\Setup.exe" /SETUP:"/l0x040c"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.908.5008\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [SuperCopier2.exe] C:\Program Files\SuperCopier2\SuperCopier2.exe
O4 - HKCU\..\Run: [TuneUp MemOptimizer] "C:\Program Files\TuneUp Utilities 2006\MemOptimizer.exe" autostart
O4 - HKCU\..\Run: [Secure32] C:\WINDOWS\System32\dllcache\Shell32.com StartUp
O4 - HKCU\..\Run: [Secure64] C:\WINDOWS\System32\dllcache\Regedit32.com StartUp
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Lancement rapide de Microsoft Office OneNote 2003.lnk = C:\Program Files\Microsoft Office\OFFICE11\ONENOTEM.EXE
O4 - Global Startup: TV Capture Remote Control.lnk = C:\Program Files\Easy\TV Capture\RemoteCtl.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: SYSTRAN: &Effacer le cache de traduction - C:\Program Files\Systran\Premium\menuClearCache.html
O8 - Extra context menu item: SYSTRAN: &Options - C:\Program Files\Systran\Premium\menuConfigure.html
O8 - Extra context menu item: SYSTRAN: &Traduire - C:\Program Files\Systran\Premium\menuTranslate.html
O8 - Extra context menu item: SYSTRAN: En®istrement - C:\Program Files\Systran\Premium\menuRegister.html
O8 - Extra context menu item: SYSTRAN: Rechercher les &mises à jour - C:\Program Files\Systran\Premium\menuUpdate.html
O8 - Extra context menu item: SYSTRAN: Traduire les &cadres - C:\Program Files\Systran\Premium\menuTranslateAll.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra button: Créer un Favori de l'appareil mobile - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra 'Tools' menuitem: Créer un Favori de l'appareil mobile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra button: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Program Files\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Program Files\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\Yahoo!\Common\yhexbmesfr.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\Yahoo!\Common\yhexbmesfr.dll
O9 - Extra button: @sysiecom.dll,-2100 - {703436F1-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslate.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2102 - {703436F1-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslate.html
O9 - Extra button: @sysiecom.dll,-2103 - {703436F2-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslateAll.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2105 - {703436F2-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslateAll.html
O9 - Extra button: @sysiecom.dll,-2115 - {703436F3-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuConfigure.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2117 - {703436F3-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuConfigure.html
O9 - Extra button: (no name) - {703436F4-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuClearCache.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2108 - {703436F4-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuClearCache.html
O9 - Extra button: (no name) - {703436F5-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuRegister.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2111 - {703436F5-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuRegister.html
O9 - Extra button: (no name) - {703436F6-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuUpdates.html (file missing)
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2114 - {703436F6-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuUpdates.html (file missing)
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - 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: InCD Helper (InCDsrv) - Ahead Software AG - C:\Program Files\Ahead\InCD\InCDsrv.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe
O23 - Service: TuneUp WinStyler Theme Service (TUWinStylerThemeSvc) - TuneUp Software GmbH - C:\Program Files\TuneUp Utilities 2006\WinStylerThemeSvc.exe
Merci de m'aider!