Pb virus msdirectx.sys

bonjour a tous g decouvert recemment que mon ordinateur etait infecter du virus msdirectx.sys il apparait ttes les 30 secondes impossible a m'en debarasser si quelqun pourrait m'aider SVP g fais un Hijack si kelkun pouvait y jetter un coup d'oeil
MERCI D'AVANCE A TOUS

Logfile of HijackThis v1.99.1
Scan saved at 20:21:41, on 25/07/2005
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:\WINDOWS\System32\xpjava.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINDOWS\System32\ctfmon.exe
C:\PROGRA~1\SOFTWA~1\soproc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\system32\pctspk.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\cmd.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\vgta\Bureau\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.accoona.com/search_assistant/accoona_search_assistant.jsp?&utm_id=400011&utm_content=leftnav&utm_source=wdz1&utm_medium=bund&utm_campaign=wdz0605a
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.accoona.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://www.accoona.com/search?q=%s
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: UserInit=userinit.exe,xpjava.exe
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: Accoona Search Assistant - {944864A5-3916-46E2-96A9-A2E84F3F1208} - C:\Program Files\Accoona\ASearchAssist.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
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: [Network Access] winssh.exe
O4 - HKLM\..\Run: [REGRUN32] C:\WINUPDATE2425.exe
O4 - HKLM\..\Run: [a2mhbhi2] C:\WINDOWS\System32\a2mhbhi2.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Anti-Virus Update Scheduler] C:\windows\system\romrade.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O4 - HKLM\..\RunServices: [Network Access] winssh.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: [SOProc_RegWxSzNn] rundll32 shell32.dll,ShellExec_RunDLL C:\PROGRA~1\SOFTWA~1\soproc.exe -pack RegWxSzNn
O4 - HKCU\..\Run: [a-squared] "C:\Program Files\a2\a2guard.exe"
O16 - DPF: {00000000-0000-0000-0000-000020030000} - http://www.advnt01.com/dialer/fra_pao.exe
O16 - DPF: {00000000-0000-0000-0000-000020040000} - http://207.234.185.217/ABoxInst_int10.exe
O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540013} (CInstall Class) - http://adserver.sharewareonline.com/adserver/Install.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1122212891781
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) - http://www.inoculer.com/antivirus/Msie/bitdefender.cab
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: hexadecimal (HexadecimaRepresentation) - Unknown owner - C:\WINDOWS\Edit.exe (file missing)
O23 - Service: MAPI Mail Client (MAPI) - Unknown owner - C:\WINDOWS\System32\mapi32.exe (file missing)
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: PCTEL Speaker Phone (Pctspk) - PCtel, Inc. - C:\WINDOWS\system32\pctspk.exe
O23 - Service: tsecure - Unknown owner - C:\WINDOWS\tsecure.exe
O23 - Service: Windows Configuration Loader - Unknown owner - C:\WINDOWS\svchost.exe