voila le nouveau scan hijackthis:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15:35, on 2009-01-28
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)
Boot mode: Normal
Running processes:
C:WINDOWSSystem32smss.exe
C:WINDOWSsystem32winlogon.exe
C:WINDOWSsystem32services.exe
C:WINDOWSsystem32lsass.exe
C:WINDOWSsystem32Ati2evxx.exe
C:WINDOWSsystem32svchost.exe
C:WINDOWSSystem32svchost.exe
C:Program FilesAlwil SoftwareAvast4aswUpdSv.exe
C:WINDOWSsystem32Ati2evxx.exe
C:Program FilesAlwil SoftwareAvast4ashServ.exe
C:WINDOWSsystem32spoolsv.exe
C:Program FilesJavajre6injqs.exe
C:Program FilesMicrosoftSearch Enhancement PackSeaPortSeaPort.exe
C:Program FilesAlwil SoftwareAvast4ashMaiSv.exe
C:Program FilesAlwil SoftwareAvast4ashWebSv.exe
C:WINDOWSRTHDCPL.EXE
C:Program FilesJavajre6injusched.exe
C:PROGRA~1ALWILS~1Avast4ashDisp.exe
C:Program FilesMicrosoft OfficeOffice12GrooveMonitor.exe
C:WINDOWSsystem32ctfmon.exe
D:Mes documentsTHOMAS DOCUMENTSShareazaShareaza.exe
C:Program FilesWindows LiveMessengermsnmsgr.exe
C:Program FilesMessengermsmsgs.exe
C:Program FilesDAEMON Tools Litedaemon.exe
C:Program FileseMuleemule.exe
C:Program FilesWindows LiveContactswlcomm.exe
C:WINDOWSsystem32
undll32.exe
C:WINDOWSexplorer.exe
C:Program FilesWindows LiveToolbarwltuser.exe
D:Program FilesBig City Aventure SydneyBigCityAdventureSydney.exe
C:WINDOWSsystem32wuauclt.exe
C:Program FilesInternet ExplorerIEXPLORE.EXE
C:Program FilesTrend MicroHijackThisHijackThis.exe
R0 - HKCUSoftwareMicrosoftInternet ExplorerMain,Start Page = http://www.google.fr/
R1 - HKLMSoftwareMicrosoftInternet ExplorerMain,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLMSoftwareMicrosoftInternet ExplorerMain,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLMSoftwareMicrosoftInternet ExplorerMain,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLMSoftwareMicrosoftInternet ExplorerMain,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKCUSoftwareMicrosoftInternet ExplorerToolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:Program FilesFichiers communsAdobeAcrobatActiveXAcroIEHelperShim.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - C:Program FilesMicrosoftSearch Enhancement PackSearch HelperSearchHelper.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:PROGRA~1MI1933~1Office12GRA8E1~1.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:Program FilesJavajre6inssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:Program FilesFichiers communsMicrosoft SharedWindows LiveWindowsLiveLogin.dll
O2 - BHO: FDMIECookiesBHO Class - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:Program FilesFree Download Manageriefdm2.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:Program FilesJavajre6injp2ssv.dll
O2 - BHO: Windows Live Toolbar Helper - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - C:Program FilesWindows LiveToolbarwltcore.dll
O2 - BHO: JQSIEStartDetectorImpl Class - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:Program FilesJavajre6libdeployjqsiejqs_plugin.dll
O3 - Toolbar: &Windows Live Toolbar - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - C:Program FilesWindows LiveToolbarwltcore.dll
O3 - Toolbar: DAEMON Tools Toolbar - {32099AAC-C132-4136-9E9A-4E364A424E17} - C:Program FilesDAEMON Tools ToolbarDTToolbar.dll
O4 - HKLM..Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM..Run: [SunJavaUpdateSched] "C:Program FilesJavajre6injusched.exe"
O4 - HKLM..Run: [avast!] C:PROGRA~1ALWILS~1Avast4ashDisp.exe
O4 - HKLM..Run: [GrooveMonitor] "C:Program FilesMicrosoft OfficeOffice12GrooveMonitor.exe"
O4 - HKLM..Run: [Adobe Reader Speed Launcher] "C:Program FilesAdobeReader 9.0ReaderReader_sl.exe"
O4 - HKCU..Run: [CTFMON.EXE] C:WINDOWSsystem32ctfmon.exe
O4 - HKCU..Run: [Shareaza] "D:Mes documentsTHOMAS DOCUMENTSShareazaShareaza.exe" -tray
O4 - HKCU..Run: [msnmsgr] "C:Program FilesWindows LiveMessengermsnmsgr.exe" /background
O4 - HKCU..Run: [MSMSGS] "C:Program FilesMessengermsmsgs.exe" /background
O4 - HKCU..Run: [DAEMON Tools Lite] "C:Program FilesDAEMON Tools Litedaemon.exe" -autorun
O4 - HKCU..Run: [eMuleAutoStart] C:Program FileseMuleemule.exe -AutoStart
O4 - HKUSS-1-5-18..Run: [CTFMON.EXE] C:WINDOWSsystem32CTFMON.EXE (User 'SYSTEM')
O4 - HKUS.DEFAULT..Run: [CTFMON.EXE] C:WINDOWSsystem32CTFMON.EXE (User 'Default user')
O4 - Startup: Adobe Gamma.lnk = C:Program FilesFichiers communsAdobeCalibrationAdobe Gamma Loader.exe
O4 - Global Startup: Wireless Configuration Utility HW.14.lnk = C:Program FilesTRENDnetTEW-424UBWlanCU.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:PROGRA~1MI1933~1Office12EXCEL.EXE/3000
O8 - Extra context menu item: Tout télécharger avec Free Download Manager - file://C:Program FilesFree Download Managerdlall.htm
O8 - Extra context menu item: Télécharger avec Free Download Manager - file://C:Program FilesFree Download Managerdllink.htm
O8 - Extra context menu item: Télécharger la sélection avec Free Download Manager - file://C:Program FilesFree Download Managerdlselected.htm
O8 - Extra context menu item: Télécharger la vidéo avec Free Download Manager - file://C:Program FilesFree Download Managerdlfvideo.htm
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:Program FilesWindows LiveWriterWriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:Program FilesWindows LiveWriterWriterBrowserExtension.dll
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:PROGRA~1MI1933~1Office12ONBttnIE.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:PROGRA~1MI1933~1Office12ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:PROGRA~1MI1933~1Office12REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:WINDOWSNetwork Diagnosticxpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:WINDOWSNetwork Diagnosticxpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:Program FilesMessengermsmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:Program FilesMessengermsmsgs.exe
O14 - IERESET.INF: START_PAGE_URL=http://www.google.fr/
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:Program FilesYahoo!Commonyinsthelper.dll
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Java Runtime Environment 1.6.0) - http://javadl.sun.com/webapps/download/ ... leId=26688
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) - http://game14.zylom.com/activex/zylomgamesplayer.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:PROGRA~1MI1933~1Office12GR99D3~1.DLL
O23 - Service: Adobe LM Service - Adobe Systems - C:Program FilesFichiers communsAdobe Systems SharedServiceAdobelmsvc.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:Program FilesAlwil SoftwareAvast4aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:WINDOWSsystem32Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:WINDOWSsystem32ati2sgag.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:Program FilesAlwil SoftwareAvast4ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:Program FilesAlwil SoftwareAvast4ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:Program FilesAlwil SoftwareAvast4ashWebSv.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:Program FilesFichiers communsInstallShieldDriver1150Intel 32IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:Program FilesJavajre6injqs.exe
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End of file - 8776 bytes
Pour l'instant le probleme semble avoir disparu....
Maintenant pour obtimiser la vitesse si tu a quelques conseil ou manip. merci beaucoup