Analyse log de hijackthis

Bonjour,

Mon ordi rame et j'ai des problèmes pour me connecter à internet (ADSL). J'incrimine la barre search que j'ai dans IE. J'ai scanné avec Ad-aware mais la barre revient ensuite

ci-dessous je vous envoie mon log de hijackthis, est ce quelqu'un pourrait l'analyser.

Merci d'avance.

Logfile of HijackThis v1.98.2
Scan saved at 16:32:11, on 15/01/2005
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\System32\RUNDLL32.EXE
C:\WINDOWS\System32\P2P Networking\P2P Networking.exe
C:\WINDOWS\System32\rundll32.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\rundll32.exe
C:\Program Files\iRiver\iHP100\iHPDetect.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\Program Files\Microsoft Office\Office\OSA.EXE
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\SYLVAI~1\LOCALS~1\Temp\Rar$EX00.984\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.richfind.com/ie/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.richfind.com/ie/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://home.free.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.richfind.com/ie/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.richfind.com/ie/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.richfind.com/ie/
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.richfind.com/ie/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search - {CCEFA904-E134-45C6-9B25-30D1AD48E424} - C:\WINDOWS\System32\Q10517046.dll
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_3_18_0.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: IEHelper - {1de610a2-512d-4109-9473-21f1d38bc7c6} - C:\WINDOWS\System32\Q287939656.dll (file missing)
O2 - BHO: URLLink Class - {4A2AACF3-ADF6-11D5-98A9-00E018981B9E} - C:\Program Files\NewDotNet\newdotnet6_38.dll
O2 - BHO: Search - {755458B8-7B8B-4AB0-A44C-B4C6391EEB33} - C:\WINDOWS\System32\Q10517046.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Yahoo! Compagnon - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_3_18_0.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Search - {D588892B-CE53-4A2D-A6AC-E9B6FFB576C1} - C:\WINDOWS\System32\Q10517046.dll
O4 - HKLM\..\Run: [KAVPersonal50] C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe /minimize
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\System32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [P2P Networking] C:\WINDOWS\System32\P2P Networking\P2P Networking.exe /AUTOSTART
O4 - HKLM\..\Run: [webHancer Survey Companion] "C:\Program Files\webHancer\Programs\whSurvey.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [New.net Startup] rundll32 C:\PROGRA~1\NEWDOT~1\NEWDOT~1.DLL,NewDotNetStartup -s
O4 - HKLM\..\Run: [iHP-100] C:\Program Files\iRiver\iHP100\iHPDetect.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Startup: Démarrage d'Office.lnk = C:\Program Files\Microsoft Office\Office\OSA.EXE
O4 - Startup: Microsoft Recherche accélérée.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: Search - {D588892B-CE53-4A2D-A6AC-E9B6FFB576C1} - C:\WINDOWS\System32\Q10517046.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O14 - IERESET.INF: START_PAGE_URL=http://home.free.fr/
O16 - DPF: {1D6711C8-7154-40BB-8380-3DEA45B69CBF} (Web P2P Installer) -
O16 - DPF: {30528230-99F7-4BB4-88D8-FA1D4F56A2AB} (YInstStarter Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/yinst0401.cab
O16 - DPF: {3AF4DACE-36ED-42EF-9DFC-ADC34DA30CFF} (PatchInstaller.Installer) - file://F:\content\include\XPPatchInstaller.CAB
O16 - DPF: {FFCEABDA-C04E-7F4A-E9B6-DFA72B2F49FB} - http://213.200.210.10/dl/101/FR175_116.exe
O18 - Filter: text/html - {AED30781-BC30-44C8-A7E9-85E90DEA0057} - C:\WINDOWS\System32\Q10517046.dll
O18 - Filter: text/plain - {AED30781-BC30-44C8-A7E9-85E90DEA0057} - C:\WINDOWS\System32\Q10517046.dll