Trojan-gamethief.win32.maga...

bonsoir, en voulant graver un dvd avec Nero, j'ai decouvert ces bestioles dans mon disque dur, 0bcobed.exe; 2u.com;em8tqm.cmd;jm3cx96.bat;minm.cmd.
J'ai fait un scan avec l'anti-virus kaspersky et j'ai trouvé : Trojan-GameThief.Win32.Maga...
j'ai fait un rapport hijackthis :

Logfile of HijackThis v1.99.1
Scan saved at 18:57:03, on 04/04/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16791)

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\Ahead\InCD\InCDsrv.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\ewido anti-spyware 4.0\guard.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Sandboxie\SbieSvc.exe
C:\WINDOWS\System32\PAStiSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\ZSSnp211.exe
C:\WINDOWS\Domino.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Sandboxie\SbieCtrl.exe
C:\Program Files\VideoLAN\VLC\vlc.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Hijackthis Version Française\VERSION TRADUITE ORIGINALE.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = search.net-studio.org
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = search.net-studio.org
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = search.net-studio.org
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O4 - HKLM\..\Run: [ZSSnp211] C:\WINDOWS\ZSSnp211.exe
O4 - HKLM\..\Run: [Domino] C:\WINDOWS\Domino.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet
O4 - HKCU\..\Run: [SandboxieControl] "C:\Program Files\Sandboxie\SbieCtrl.exe"
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O9 - Extra button: @sysiecom.dll,-2100 - {703436F1-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslate.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2102 - {703436F1-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslate.html
O9 - Extra button: @sysiecom.dll,-2103 - {703436F2-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslateAll.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2105 - {703436F2-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuTranslateAll.html
O9 - Extra button: @sysiecom.dll,-2115 - {703436F3-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuConfigure.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2117 - {703436F3-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuConfigure.html
O9 - Extra button: (no name) - {703436F4-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuClearCache.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2108 - {703436F4-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuClearCache.html
O9 - Extra button: (no name) - {703436F5-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuRegister.html
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2111 - {703436F5-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuRegister.html
O9 - Extra button: (no name) - {703436F6-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuUpdates.html (file missing)
O9 - Extra 'Tools' menuitem: @sysiecom.dll,-2114 - {703436F6-3E1F-11d3-8F6B-00105A2A1D59} - C:\Program Files\Systran\Premium\MenuUpdates.html (file missing)
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - https://www.kaspersky.fr/?domain=webscanner.kaspersky.fr
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{629E9635-3CB0-4729-9504-757094AF13A3}: NameServer = 41.221.20.4 193.251.169.165
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: ewido anti-spyware 4.0 guard - Anti-Malware Development a.s. - C:\Program Files\ewido anti-spyware 4.0\guard.exe
O23 - Service: InCD Helper (InCDsrv) - Ahead Software AG - C:\Program Files\Ahead\InCD\InCDsrv.exe
O23 - Service: kavsvc - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Security Suite\Kaspersky Anti-Virus Personal\kavsvc.exe
O23 - Service: Sandboxie Service (SbieSvc) - tzuk - C:\Program Files\Sandboxie\SbieSvc.exe
O23 - Service: STI Simulator - Unknown owner - C:\WINDOWS\System32\PAStiSvc.exe

je vous remercie d'avance pour votre aide.