I have a virus which is not detected by my antivirus. would you mind let me know what kind of virus is this and how to remove that.
thanks.here is the log file.

Logfile of HijackThis v1.99.1
Scan saved at 11:45:03 ق.ظ, on 2008/04/06
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:\Program Files\Messenger\SPOOLSV.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\explorer.exe
D:\Program Files\Diskeeper\DkService.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\mdm.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Common Files\BitDefender\BitDefender Communicator\xcommsvr.exe
C:\Program Files\Common Files\BitDefender\BitDefender Update Service\livesrv.exe
D:\Program Files\BitDefender Total Security 2008\vsserv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\Samsung\ComSMMgr\ssmmgr.exe
D:\Program Files\OmniPageSE 2.0\OpwareSE2.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fppdis3a.exe
C:\Windows\System32\system.exe
D:\PROGRA~1\HDTUNE~1\HDTune.exe
D:\Program Files\BitDefender Total Security 2008\bdagent.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Gigabyte\ET5\GUI.exe
D:\Program Files\Internet Download Manager\IDMan.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
D:\Program Files\AutoPowerOn\AutoPowerOn.exe
D:\Program Files\Internet Download Manager\IEMonitor.exe
D:\Program Files\Opera 9.22\Opera.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Common Files\Microsoft Shared\Windows Live\WLLoginProxy.exe
d:\PROGRA~1\FOXITR~1\FOXITR~1.EXE
d:\Program Files\Hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.gmail.com/
F2 - REG:system.ini: Shell="C:\Program Files\Messenger\SPOOLSV.exe" s
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - D:\Program Files\Internet Download Manager\IDMIECC.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: BitDefender Toolbar - {381FFDE8-2394-4f90-B10D-FC6124A40F8C} - D:\Program Files\BitDefender Total Security 2008\IEToolbar.dll
O4 - HKLM\..\Run: [Samsung Common SM] "C:\WINDOWS\Samsung\ComSMMgr\ssmmgr.exe" /autorun
O4 - HKLM\..\Run: [OpwareSE2] "D:\Program Files\OmniPageSE 2.0\OpwareSE2.exe"
O4 - HKLM\..\Run: [pdfFactory Pro Dispatcher v3] "C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fppdis3a.exe" /source=HKLM
O4 - HKLM\..\Run: [system] c:\Windows\System32\system.exe
O4 - HKLM\..\Run: [Babylon Client] d:\Program Files\Babylon-Pro 7\Babylon.exe -AutoStart
O4 - HKLM\..\Run: [HD Tune] D:\PROGRA~1\HDTUNE~1\HDTune.exe
O4 - HKLM\..\Run: [EasyTuneV] C:\Program Files\Gigabyte\ET5\ETcall.exe
O4 - HKLM\..\Run: [BitDefender Antiphishing Helper] "D:\Program Files\BitDefender Total Security 2008\IEShow.exe"
O4 - HKLM\..\Run: [BDAgent] "D:\Program Files\BitDefender Total Security 2008\bdagent.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [IDMan] D:\Program Files\Internet Download Manager\IDMan.exe /onboot
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [AutoPowerOn] d:\Program Files\AutoPowerOn\AutoPowerOn.exe
O4 - Startup: HDDlife.lnk = D:\Program Files\HDDlife 3\HDDlifePro.exe
O8 - Extra context menu item: &Windows Live Search - res://C:\Program Files\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Download all links with IDM - D:\Program Files\Internet Download Manager\IEGetAll.htm
O8 - Extra context menu item: Download FLV video content with IDM - D:\Program Files\Internet Download Manager\IEGetVL.htm
O8 - Extra context menu item: Download with IDM - D:\Program Files\Internet Download Manager\IEExt.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://D:\PROGRA~1\MICROS~1\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Translate with &Babylon - res://D:\Program Files\Babylon-Pro 7\Utils\BabylonIEPI.dll/Translate.htm
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~1\Office12\REFIEBAR.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
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DLL
O23 - Service: Diskeeper - Diskeeper Corporation - D:\Program Files\Diskeeper\DkService.exe
O23 - Service: BitDefender Desktop Update Service (LIVESRV) - Unknown owner - C:\Program Files\Common Files\BitDefender\BitDefender Update Service\livesrv.exe" /service (file missing)
O23 - Service: BitDefender Virus Shield (VSSERV) - Unknown owner - D:\Program Files\BitDefender Total Security 2008\vsserv.exe" /service (file missing)
O23 - Service: BitDefender Communicator (XCOMM) - Unknown owner - C:\Program Files\Common Files\BitDefender\BitDefender Communicator\xcommsvr.exe" /service (file missing)

isn't there anyone how could help me?