Rapport hijack suite virus et déconnexion

Bonjour à tous,

Nouvelle cliente numéricable,
Connectée par modem usb
Des virus ont intégré le pc dès la première connexion
On a passé le spybot qui a détruit pas mal, mais avast continue à signaler des virus qu'il ne peut mettre en quarantaine car fichier inaccessible,

J'ai donc fait un hijack dont voici le rapport
Logfile of HijackThis v1.99.1
Scan saved at 13:13:43, on 04/08/2006
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\NT\nrcs.exe
C:\WINDOWS\update\updmgr.exe
C:\WINDOWS\system32\smsc.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\Explorer.exe
C:\dfndrff_7.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Fichiers communs\{5447FAE5-01C2-1036-0325-980330010021}\Update.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
C:\Program Files\Sony\Sony Picture Utility\VolumeWatcher\SPUVolumeWatcher.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\clouvel\Bureau\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.sfr.fr/offres-numericable.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.google.fr/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Explorer par NUMERICABLE
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: Shell=Explorer.exe C:\WINDOWS\NT\nrcs.exe
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\userinit.exe,C:\WINDOWS\NT\nrcs.exe
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll (file missing)
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Windows Network Firewall] C:\WINDOWS\System32\firewall.exe
O4 - HKLM\..\Run: [keyboard] C:\\kybrdff_7.exe
O4 - HKLM\..\Run: [defender] C:\\dfndrff_7.exe
O4 - HKLM\..\Run: [Microsoft (R) Windows Vista/NT Runtime Compatibility Service] C:\WINDOWS\NT\nrcs.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Microsoft Help System] C:\WINDOWS\System32\mshelp32.com
O4 - HKLM\..\Run: [Windows MS Update 32] sucker.exe
O4 - HKLM\..\Run: [Microsoft (R) Windows Update Manager] C:\WINDOWS\update\updmgr.exe
O4 - HKLM\..\RunServices: [Windows MS Update 32] sucker.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Microsoft Help System] C:\WINDOWS\System32\mshelp32.com
O4 - HKCU\..\Run: [Windows MS Update 32] sucker.exe
O4 - Startup: Outil de détection de support de Cyber-shot Viewer.lnk = C:\Program Files\Sony\Sony Picture Utility\VolumeWatcher\SPUVolumeWatcher.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O12 - Plugin for .mp3: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin3.dll
O12 - Plugin for .mpg: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin3.dll
O14 - IERESET.INF: START_PAGE_URL=https://www.google.fr/?gws_rd=ssl
O16 - DPF: {5054F860-748D-4840-B7B4-DDDB428421AF} (phoneaccess Class) - http://ipdata.phoneaccess.com/dialer/1/cab/fr/phoneaccess.cab
O23 - Service: ASP.NET State Service (aspnet_state) - Unknown owner - C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\aspnet_state.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Windows Vista/NT Runtime Compatibility Service (ntrcs) - Unknown owner - C:\WINDOWS\NT\nrcs.exe
O23 - Service: Windows Update Manager (UpdateManager) - Unknown owner - C:\WINDOWS\update\updmgr.exe
O23 - Service: Window Kernel Memory - Unknown owner - C:\WINDOWS\system32\smsc.exe

Mille merci avons besoin d'aide ne savons plus quoi faire à ce stade....

Stefgwendal