Virus (trojan et vers) + Scan Hijackthis

Bonjour,

Mon ordinateur, grâce a Nortonantivirus, a détecté un Trojan ainisi q'un vers (W32.Spybot.Worm) j'ai donc fais un scan avec Hijackthis dont voici le bilan:

Logfile of HijackThis v1.99.1
Scan saved at 15:51:15, on 26/12/2005
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\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\Fichiers communs\Symantec Shared\ccSetMgr.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\System32\atiptaxx.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\PROGRA~1\WANADOO\CnxMon.exe
C:\PROGRA~1\MESSAG~1\Demon.exe
C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe
C:\PROGRA~1\WANADOO\TaskbarIcon.exe
C:\windows\adtech2006a.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\ATI Multimedia\main\launchpd.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\lsass.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Documents and Settings\nom\Local Settings\Temp\Répertoire temporaire 3 pour hijackthis_199.zip\HijackThis.exe
C:\Program Files\Norton AntiVirus\SAVScan.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://searchbar.findthewebsiteyouneed.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://searchbar.findthewebsiteyouneed.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.wanadoo.fr
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://searchbar.findthewebsiteyouneed.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://searchbar.findthewebsiteyouneed.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: XBTP07618 - {2296428D-C133-4928-B76A-A200FF409572} - C:\PROGRA~1\FREEPR~1\freeprod.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Freeprod Toolbar - {77FBF9B8-1D37-4FF2-9CED-192D8E3ABA6F} - C:\Program Files\Freeprod Toolbar\freeprod.dll
O4 - HKLM\..\Run: [AtiPTA] atiptaxx.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\WANADOO\CnxMon.exe
O4 - HKLM\..\Run: [Demon] C:\PROGRA~1\MESSAG~1\Demon.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\WANADOO\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\WANADOO\TaskbarIcon.exe
O4 - HKLM\..\Run: [timessquare] C:\windows\timessquare.exe
O4 - HKLM\..\Run: [adtech2006] C:\windows\adtech2006a.exe
O4 - HKLM\..\Run: [drsmartloadb] c:\\drsmartloadb.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ATI Launchpad] "C:\Program Files\ATI Multimedia\main\launchpd.exe"
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: Freeprod Toolbar - {77FBF9B8-1D37-4FF2-9CED-192D8E3ABA6F} - C:\Program Files\Freeprod Toolbar\freeprod.dll
O9 - Extra 'Tools' menuitem: Freeprod Toolbar - {77FBF9B8-1D37-4FF2-9CED-192D8E3ABA6F} - C:\Program Files\Freeprod Toolbar\freeprod.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
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - http://www.wanadoo.fr (file missing) (HKCU)
O17 - HKLM\System\CS2\Services\Tcpip\..\{19CBC677-A484-4ED6-B4E8-BC47692173DA}: NameServer = 80.10.246.1 80.10.246.132
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: Local Security Authority Subsystem Service (lsass) - Unknown owner - C:\WINDOWS\lsass.exe
O23 - Service: Service Norton AntiVirus Auto-Protect (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe

Quelqu'un pourrait-il m'aider pour que je fasse les démarches nécessaires?
Merci d'avance