Backdoor.Prorat

voila mon ordi c'est fait attaqué par un virus que ad ware ma detetecte mais il revient a chaque fois , j'ai windows 2000 server le virus est de type Backdoor.Prorat
et log est ( merci de votre aide , car ce virus me blok pratiquement tout il me laisse mm pas imprimé):
Logfile of HijackThis v1.99.1
Scan saved at 14:42:55, on 28/08/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Program Files\AntiVir PersonalEdition Classic\sched.exe
C:\Program Files\AntiVir PersonalEdition Classic\avguard.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\System32\llssrv.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\stisvc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\System32\inetsrv\inetinfo.exe
C:\WINNT\System32\msdtc.exe
C:\WINNT\Explorer.exe
C:\WINNT\system32\Dfssvc.exe
C:\WINNT\services.exe
C:\WINNT\system32\spool\DRIVERS\W32X86\3\E_FATI9BE.EXE
C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\TinaSoft\Easy Cafe Server\EASYSERVER.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\DAP\DAP.EXE
C:\Documents and Settings\Administrateur\Bureau\Windows-KB890830-V1.19.exe
c:\802b065713078604db\mrtstub.exe
C:\WINNT\system32\MRT.exe
C:\Documents and Settings\Administrateur\Bureau\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www.msn.com/fr-fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: Shell=Explorer.exe C:\WINNT\system32\Fservice.exe
O2 - BHO: DAPBHO Class - {0096CC0A-623C-4829-AD9C-19AF0DC9D8FE} - C:\Program Files\DAP\DAPIEBar.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O4 - HKLM\..\Run: [EPSON Stylus CX3600 Series (Copie 2)] C:\WINNT\system32\spool\DRIVERS\W32X86\3\E_FATI9BE.EXE /P36 "EPSON Stylus CX3600 Series (Copie 2)" /O6 "USB001" /M "Stylus CX3600"
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [TrojanScanner] C:\Program Files\Trojan Remover\Trjscan.exe
O4 - Global Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Clean Traces - C:\Program Files\DAP\Privacy Package\dapcleanerie.htm
O8 - Extra context menu item: &Download with &DAP - C:\Program Files\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - C:\Program Files\DAP\dapextie2.htm
O9 - Extra button: Run DAP - {669695BC-A811-4A9D-8CDF-BA8C795F261C} - C:\PROGRA~1\DAP\DAP.EXE
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\PROGRA~1\YAHOO!\MESSEN~1\YPAGER.EXE
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\PROGRA~1\YAHOO!\MESSEN~1\YPAGER.EXE
O16 - DPF: Yahoo! Pool 2 - http://download.games.yahoo.com/games/clients/y/poth_x.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} - http://software-dl.real.com/12496845d34e353d2b16/netzip/RdxIE601_fr.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - https://www.trendmicro.com/en_us/forHome/products/housecall.html
O17 - HKLM\System\CCS\Services\Tcpip\..\{DD51794C-EB5A-4BCD-A72B-0CFB55D53D63}: NameServer = 81.22.90.29 82.101.136.29
O23 - Service: AntiVir PersonalEdition Classic Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Guard (AntiVirService) - AVIRA GmbH - C:\Program Files\AntiVir PersonalEdition Classic\avguard.exe