Voila le rapport de hijackthis
Logfile of HijackThis v1.99.1
Scan saved at 11:10:49, on 23/07/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Running processes:
D:\WINDOWS\System32\smss.exe
D:\WINDOWS\system32\winlogon.exe
D:\WINDOWS\system32\services.exe
D:\WINDOWS\system32\lsass.exe
D:\WINDOWS\system32\Ati2evxx.exe
D:\WINDOWS\system32\svchost.exe
D:\WINDOWS\System32\svchost.exe
D:\WINDOWS\system32\ZoneLabs\vsmon.exe
D:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
D:\WINDOWS\system32\Ati2evxx.exe
D:\Program Files\Alwil Software\Avast4\ashServ.exe
D:\WINDOWS\Explorer.EXE
D:\WINDOWS\system32\spoolsv.exe
D:\Program Files\ATI Technologies\ATI.ACE\cli.exe
D:\WINDOWS\SOUNDMAN.EXE
D:\WINDOWS\system32\LVCOMSX.EXE
D:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
D:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
D:\Program Files\Logitech\Video\LogiTray.exe
D:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
D:\WINDOWS\system32\ctfmon.exe
D:\WINDOWS\system32\PnkBstrA.exe
D:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
D:\WINDOWS\system32\svchost.exe
D:\Program Files\Logitech\Video\FxSvr2.exe
D:\Program Files\MSI\US54SE_Utility\ZDWlan.exe
D:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
D:\Program Files\Alwil Software\Avast4\ashWebSv.exe
D:\WINDOWS\system32\wscntfy.exe
D:\PROGRA~1\ZONELA~1\ZONEAL~1\MAILFR~1\mantispm.ex
e
D:\Program Files\Mozilla Firefox\firefox.exe
D:\Program Files\Windows Media Player\wmplayer.exe
D:\Documents and Settings\SAMUEL\Bureau\hijackthis\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: Megaupload Toolbar - {4E7BD74F-2B8D-469E-CCB0-B130EEDBE97C} - D:\PROGRA~1\MEGAUP~2\MEGAUP~1.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O3 - Toolbar: Megaupload Toolbar - {4E7BD74F-2B8D-469E-CCB0-B130EEDBE97C} - D:\PROGRA~1\MEGAUP~2\MEGAUP~1.DLL
O4 - HKLM\..\Run: [ATIPTA] D:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [ATICCC] "D:\Program Files\ATI Technologies\ATI.ACE\cli.exe" runtime
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [LVCOMSX] D:\WINDOWS\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [EM_EXEC] D:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
O4 - HKLM\..\Run: [avast!] D:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "D:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\Run: [LogitechVideoTray] D:\Program Files\Logitech\Video\LogiTray.exe
O4 - HKLM\..\Run: [LogitechVideoRepair] D:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [Zone Labs Client] "D:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [LogitechSoftwareUpdate] "D:\Program Files\Logitech\Video\ManifestEngine.exe" boot
O4 - Global Startup: Barre d´état système d´ATI CATALYST.lnk = D:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
O4 - Global Startup: MSI US54SE 802.11b+g USB Stick Utility.lnk = D:\Program Files\MSI\US54SE_Utility\ZDWlan.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra ´Tools´ menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra ´Tools´ menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O12 - Plugin for .spop: D:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - D:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - D:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - D:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - D:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - D:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - ALWIL Software - D:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: CA ISafe (CAISafe) - Computer Associates International, Inc. - D:\WINDOWS\system32\ZoneLabs\isafe.exe
O23 - Service: PnkBstrA - Unknown owner - D:\WINDOWS\system32\PnkBstrA.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - D:\WINDOWS\system32\ZoneLabs\vsmon.exe