Bonsoir à tous,
 
J'ai deux dl.exe dans le répertoire de LFS (un jeu de caisse) et de son Viewer (utilitaire pour visualiser des skins de caisse). Au lancement d'un des deux j'ai une fenêtre qui s'ouvre et ma connexion internet se meurt (pas de surf possible, mais la messagerie instantanée ainsi que les mails fonctionnent).
Après recherche j'ai trouvé le responsable qui est Win32.tanga.a un malicieux qui nique les .exe. Je l'ai éradiqué grâce à Kaspersky mais les dl.exe sont toujours présents et refuse d'être supprimés ('cette ressource est utilisée par une autre personne ou un autre programme, etc').
Pour être sûr ou avoir un avis je vous présente mon log hijackthis :
 
Logfile of HijackThis v1.99.1
Scan saved at 18:08:04, on 10/05/2006
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\nvraidservice.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nTrayFw.exe
C:\Program Files\Logitech\iTouch\iTouch.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\NVIDIA Corporation\NvMixer\NVMixerTray.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
C:\Program Files\Google\Gmail Notifier\gnotify.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Santa Cruz Networks\Festoon\Festoon.exe
C:\Program Files\Winamp\winampa.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\Google Talk\googletalk.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
C:\Program Files\Logitech\SetPoint\KEM.exe
C:\Program Files\Logitech\SetPoint\KHALMNPR.EXE
C:\Program Files\MSI\Media Center Deluxe II\WinIRXHelper.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\System32\wbem\unsecapp.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Outlook Express\msimn.exe
C:\Documents and Settings\All Users\Documents\Utilitaires\AntiSpam\hijackthis_199_1\HijackThis.exe
 
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://192.168.2.1/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://windowsupdate.microsoft.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - Default URLSearchHook is missing
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_5_7_1.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: DealioBHO Class - {6A87B991-A31F-4130-AE72-6D0C294BF082} - C:\Program Files\Dealio\Dealio.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O3 - Toolbar: Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_5_7_1.dll
O3 - Toolbar: Dealio - {E67C74F4-A00A-4F2C-9FEC-FD9DC004A67F} - C:\Program Files\Dealio\Dealio.dll
O4 - HKLM\..\Run: [NVRaidService] C:\WINDOWS\System32\nvraidservice.exe
O4 - HKLM\..\Run: [nTrayFw] C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nTrayFw.exe
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Program Files\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [NVMixerTray] "C:\Program Files\NVIDIA Corporation\NvMixer\NVMixerTray.exe"
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: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [{0228e555-4f9c-4e35-a3ec-b109a192b4c2}] C:\Program Files\Google\Gmail Notifier\gnotify.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [Festoon] C:\Program Files\Santa Cruz Networks\Festoon\Festoon.exe /BOOT
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [NetServer] C:\Documents and Settings\All Users\Documents\Utilitaires\serveur local\NetServer.exe
O4 - HKLM\..\Run: [au] "C:\Program Files\Dealio\DealioAu.exe"
O4 - HKLM\..\Run: [KAVPersonal50] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal Pro\kav.exe" /minimize
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [LDM] \Program\BackWeb-8876480.exe
O4 - HKCU\..\Run: [googletalk] "C:\Program Files\Google\Google Talk\googletalk.exe" /autostart
O4 - Startup: HDDlife.lnk = C:\Program Files\BinarySense\HDDlife\HDDlife.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\KEM.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: WinIRXHelper.lnk = C:\Program Files\MSI\Media Center Deluxe II\WinIRXHelper.exe
O8 - Extra context menu item: Compare Prices with &Dealio - C:\Program Files\Dealio\res\DealioSearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Dealio - {E908B145-C847-4e85-B315-07E2E70DECF8} - C:\Program Files\Dealio\Dealio.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://webscanner.kaspersky.fr/kavwebscan_unicode.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft. [...] 0387119484
O17 - HKLM\System\CCS\Services\Tcpip\..\{69463A96-612A-4230-AD62-A459645327E9}: NameServer = 212.94.174.85,212.94.174.86
O18 - Protocol: Festoon - (no CLSID) - (no file)
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Apache - Unknown owner - C:\Documents and Settings\All Users\Documents\Utilitaires\serveur local\bin\stable\apache\apache.exe" -k runservice (file missing)
O23 - Service: app_filter - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
O23 - Service: FileZilla Server FTP server (FileZilla Server) - Unknown owner - C:\Documents and Settings\All Users\Documents\Utilitaires\serveur local\bin\stable\filezilla\Filezilla Server.exe (file missing)
O23 - Service: Forceware Web Interface (ForcewareWebInterface) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe" -k runservice (file missing)
O23 - Service: hMailServer - Unknown owner - C:\Documents and Settings\All Users\Documents\Utilitaires\serveur local\bin\stable\hmailserver\bin\hMailServer.exe (file missing)
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPodService - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Kaspersky Anti-Virus Service (kavsvc) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal Pro\kavsvc.exe
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Program Files\Fichiers communs\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: MySQL - Unknown owner - C:\Documents and Settings\All Users\Documents\Utilitaires\serveur local\bin\stable\mysql\bin\mysqld.exe" MySQL (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
O23 - Service: ForceWare user log service (nSvcLog) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\Security Center\SymWSC.exe
 
Merci par avance !  

Si tu tiens a virer tes dl.exe, utilise Process Explorer
 
( j ai pas le liien sous la main )
 
tu peux killer les process et effacer les fichiers

Télécharge ce programme : http://www.cexx.org/lspfix.htm et suis les instructions SCRUPULEUSEMENT !
 
En cas de fausse manoeuvre, tu perds ta connexion au net...
Reposte un log... tu seras encore infecté...