Interprétation d'un log HIjackthis

Bonjour,
Voici un log de hijackthis, je voudrais savoir ce qui peut etre supprimer, car des trojan ont elus domicile chez moi !
Je travaille sous windows xp pro
Merci à vous !

Logfile of HijackThis v1.99.0
Scan saved at 13:45:59, on 03/02/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\AdStatus Service\AdStatServ.exe
C:\Program Files\Internet Optimizer\optimize.exe
C:\program files\180solutions\sais.exe
C:\WINDOWS\system32\Tebvvi.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpohmr08.exe
C:\Program Files\AdStatus Service\AdStatKeep.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpoevm08.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\Bin\hpoSTS08.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Michel\Local Settings\Temporary Internet Files\Content.IE5\IN0LM5Q9\HijackThis[1].exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.be/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.couldnotfind.com/search_page.html?&account_id=1001693
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [AdStatus Service] C:\Program Files\AdStatus Service\AdStatServ.exe
O4 - HKLM\..\Run: [Internet Optimizer] "C:\Program Files\Internet Optimizer\optimize.exe"
O4 - HKLM\..\Run: [sais] c:\program files\180solutions\sais.exe
O4 - HKLM\..\Run: [Power Scan] C:\Program Files\Power Scan\powerscan.exe
O4 - HKLM\..\Run: [version] C:\WINDOWS\system32\Tohyjm.exe
O4 - HKLM\..\Run: [secure] C:\WINDOWS\system32\Tebvvi.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: hp psc 1000 series.lnk = ?
O4 - Global Startup: hpoddt01.exe.lnk = ?
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar3.dll/cmsearch.html
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar3.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar3.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar3.dll/cmcache.html
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
O16 - DPF: Dexia netbanking - http://netbanking.dexia.be/PC//Dynamic/Shared/Applet//DexiaIIA.cab
O16 - DPF: {15AD4789-CDB4-47E1-A9DA-992EE8E6BAD6} - http://static.windupdates.com/cab/DownloadsUnlimited/ie/bridge-c336.cab
O16 - DPF: {771A1334-6B08-4A6B-AEDC-CF994BA2CEBE} (Installer Class) - http://www.ysbweb.com/ist/softwares/v4.0/ysb_regular.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O23 - Service: avast! iAVS4 Control Service - Unknown - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique - Unknown - C:\WINDOWS\System32\dmadmin.exe
O23 - Service: Journal des événements - Unknown - C:\WINDOWS\system32\services.exe
O23 - Service: Service COM de gravage de CD IMAPI - Unknown - C:\WINDOWS\System32\imapi.exe
O23 - Service: Partage de Bureau à distance NetMeeting - Unknown - C:\WINDOWS\System32\mnmsrvc.exe
O23 - Service: Plug-and-Play - Unknown - C:\WINDOWS\system32\services.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Gestionnaire de session d'aide sur le Bureau à distance - Unknown - C:\WINDOWS\system32\sessmgr.exe
O23 - Service: Carte à puce - Unknown - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Journaux et alertes de performance - Unknown - C:\WINDOWS\system32\smlogsvc.exe
O23 - Service: Cliché instantané de volume - Unknown - C:\WINDOWS\System32\vssvc.exe
O23 - Service: Carte de performance WMI - Unknown - C:\WINDOWS\System32\wbem\wmiapsrv.exe