Virus publicitaires et hacktool rootkit

Bonsoir
j ai differents virus publicitaires et un virus hacktool rootkit. Je ne
sais pas comment faire pour m en debarasser. Pouvez vous m aider
svp. Je suis une novice... merci d avance.

Logfile of HijackThis v1.99.1
Scan saved at 21:54:49, on 07/09/2005
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\csrss.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\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\Explorer.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\System32\Ati2evxx.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\svchost.exe
C:\WINDOWS\System32\wdfmgr.exe
C:\WINDOWS\wordpad.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\WINDOWS\System32\dwwin.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\program files\180searchassistant\saap.exe
C:\WINDOWS\System32\lejksx.exe
C:\WINDOWS\exe82.exe
C:\Program Files\Internet Optimizer\optimize.exe
C:\WINDOWS\etb\pokapoka65.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Ensemble clavier et souris sans fil Labtec\MagicKey.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\Program Files\Norton AntiVirus\SAVScan.exe
C:\Program Files\Ensemble clavier et souris sans fil Labtec\MulMouse.exe
C:\Program Files\Ensemble clavier et souris sans fil Labtec\OSD.EXE
C:\WINDOWS\MPM.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\cmd.exe
C:\WINDOWS\System32\ms-dos.pif
C:\Program Files\programmes telecharges\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.neuf.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: Shell=Explorer.exe C:\WINDOWS\Nail.exe
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Windows Logon Application] C:\WINDOWS\System32\logon.exe
O4 - HKLM\..\Run: [Local Security Authority Service] C:\WINDOWS\System32\Isass.exe
O4 - HKLM\..\Run: [REGRUN] C:\dsonic.exe
O4 - HKLM\..\Run: [saap] c:\program files\180searchassistant\saap.exe
O4 - HKLM\..\Run: [Winamp Agent] C:\WINDOWS\System32\winamp.exe
O4 - HKLM\..\Run: [SWOD] C:\WINDOWS\exe82.exe
O4 - HKLM\..\Run: [Internet Optimizer] "C:\Program Files\Internet Optimizer\optimize.exe"
O4 - HKLM\..\Run: [System service65] C:\WINDOWS\etb\pokapoka65.exe
O4 - HKLM\..\Run: [MS-DOS Security Service] ms-dos.pif
O4 - HKLM\..\Run: [MSN Service] amsnmsgrs.exe
O4 - HKLM\..\Run: [elos] C:\WINDOWS\exe82.exe
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [ilotgx] C:\WINDOWS\ilotgx.exe
O4 - HKLM\..\Run: [mmmywdc] C:\WINDOWS\System32\lejksx.exe r
O4 - HKLM\..\RunServices: [MS-DOS Security Service] ms-dos.pif
O4 - HKLM\..\RunServices: [MSN Service] amsnmsgrs.exe
O4 - HKCU\..\Run: [MS-DOS Security Service] ms-dos.pif
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\RunServices: [MS-DOS Security Service] ms-dos.pif
O4 - Global Startup: Activer l'ensemble clavier et souris sans fil Labtec.lnk = C:\Program Files\Ensemble clavier et souris sans fil Labtec\MagicKey.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
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
O15 - Trusted Zone: *.media-motor.net
O15 - Trusted Zone: *.popuppers.com
O16 - DPF: {99410CDE-6F16-42ce-9D49-3807F78F0287} (ClientInstaller Class) - http://www.180searchassistant.com/180saax.cab
O16 - DPF: {FC67BB52-AAB6-4282-9D51-2DAFFE73AFD0} - http://download.spyspotter.com/spyspotter/spsp29953.01noopt/spyspottercabinstall.cab
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
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: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.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
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: SVC Module - Unknown owner - C:\WINDOWS\svchost.exe
O23 - Service: System Startup Service (SvcProc) - Unknown owner - C:\WINDOWS\svcproc.exe
O23 - Service: wordpad - Unknown owner - C:\WINDOWS\wordpad.exe