Log HIJACK

Bonjour,
Voici un log HiJack. Pourriez-vous me dire si j'ai un (ou plusieurs...) virus? Si oui, que faire?

Merci d'avance :)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:08:58, on 1/06/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Documents and Settings\seb.SEB-\Mes documents\MSN Messenger\msnmsgr.exe
C:\Program Files\Uniblue\RegistryBooster\RegistryBooster.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Belgacom\bin\sprtsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\WinamaxPoker\WinamaxPoker.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://home.sweetim.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Lexmark Barre d'outils - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {3B7AAEB1-9F3D-4491-9C06-C7165CA8D058} - C:\Program Files\Applications\iebt.dll (file missing)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O3 - Toolbar: Lexmark Barre d'outils - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - (no file)
O3 - Toolbar: Internet Service - {E43B6656-814B-4839-8FF8-AFFDE0DA9A3F} - C:\Program Files\Applications\iebr.dll (file missing)
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Documents and Settings\seb.SEB-\Mes documents\MSN Messenger\msnmsgr.exe" /background
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-21-1220945662-1659004503-1801674531-1021\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'postgres')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: PokerStars - {3AD14F0C-ED16-4e43-B6D8-661B03F6A1EF} - C:\Program Files\PokerStars\PokerStarsUpdate.exe
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\WINDOWS\system32\shdocvw.dll
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
O9 - Extra button: Absolute Poker - {13C1DBF6-7535-495c-91F6-8C13714ED485} - C:\WINDOWS\system32\shdocvw.dll (HKCU)
O9 - Extra 'Tools' menuitem: Absolute Poker - {13C1DBF6-7535-495c-91F6-8C13714ED485} - C:\WINDOWS\system32\shdocvw.dll (HKCU)
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Java Runtime Environment 1.6.0) - https://sdlc-esd.oracle.com/ESD44/JSCDL/jdk/6u7/jinstall-6u7-windows-i586-jc.cab?GroupName=JSC&FilePath=/ESD44/JSCDL/jdk/6u7/jinstall-6u7-windows-i586-jc.cab&BHost=javadl.sun.com&File=jinstall-6u7-windows-i586-jc.cab&AuthParam=1580978829_3fac487ff39b191ded7866fc4973d48d&ext=.cab
O22 - SharedTaskScheduler: displume - {d54f12f7-4d76-4c39-a096-e51ef5d33f2b} - (no file)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - 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: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Boonty Games - BOONTY - C:\Program Files\Fichiers communs\BOONTY Shared\Service\Boonty.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: PostgreSQL Database Server 8.3 (pgsql-8.3) - PostgreSQL Global Development Group - C:\Program Files\PostgreSQL\8.3\bin\pg_ctl.exe
O23 - Service: SupportSoft Sprocket Service (belgacom) (sprtsvc_belgacom) - SupportSoft, Inc. - C:\Program Files\Belgacom\bin\sprtsvc.exe
O23 - Service: SupportSoft RemoteAssist - SupportSoft, Inc. - C:\Program Files\Fichiers communs\Supportsoft\bin\ssrc.exe