ragazzi honumerosi problemi , all'avvio mi appare system32/cmd.exe si avvia anche una modalLogfile of HijackThis v1.99.1
Scan saved at 16.35.50, on 25/06/2005
Platform: Windows 2000 SP1 (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:\WINNT\System32\dfrgfat16.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\drivers\KodakCCS.exe
C:\WINNT\System32\netddeclnt.exe
C:\Programmi\Norton Personal Firewall\NISUM.EXE
C:\WINNT\System32\nvsvc32.exe
C:\Programmi\Kodak\Kodak EasyShare software\bin\ptssvc.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\ScsiAccess.EXE
C:\WINNT\system32\stisvc.exe
C:\Programmi\Norton Personal Firewall\SymProxySvc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\System32\mspmspsv.exe
C:\Programmi\Norton Personal Firewall\NISSERV.EXE
C:\WINNT\Explorer.exe
C:\WINNT\System32\RunDll32.exe
C:\WINNT\System32\carpserv.exe
C:\Programmi\Winamp3\winampa.exe
C:\Programmi\Creative\WebCam Control\CAMTRAY.EXE
C:\Programmi\Norton Personal Firewall\IAMAPP.EXE
C:\WINNT\loadqm.exe
C:\WINNT\System32\UMonit2K.exe
C:\Programmi\QuickTime\qttask.exe
C:\Programmi\MSN Apps\Updater\01.02.3000.1001\it\msnappau.exe
C:\Programmi\IPM\Adsl\DataWay\dslstat.exe
C:\WINNT\System32\dslagent.exe
C:\WINNT\System32\winsi32.exe
C:\WINNT\System32\spoolsan.exe
C:\WINNT\System32\sp2hosts.exe
C:\WINNT\System32\tqrnsp.exe
C:\WINNT\System32\Isass.exe
C:\WINNT\System32\internat.exe
C:\Programmi\Kodak\Kodak EasyShare software\bin\EasyShare.exe
C:\Programmi\WinZip\WZQKPICK.EXE
C:\Programmi\Yahoo!\Messenger\ymsgr_tray.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Documents and Settings\xx\Documenti\varie\Nuova cartella\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.libero.it/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = EGhost_Reg_Fail
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: (no name) - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - (no file)
O3 - Toolbar: MSN Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\MSN Toolbar\01.01.1601.0\it\msntb.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [CARPService] carpserv.exe
O4 - HKLM\..\Run: [WinampAgent] "C:\Programmi\Winamp3\winampa.exe"
O4 - HKLM\..\Run: [NeroCheck] C:\WINNT\System32\\NeroCheck.exe
O4 - HKLM\..\Run: [Creative WebCam Tray] C:\Programmi\Creative\WebCam Control\CAMTRAY.EXE
O4 - HKLM\..\Run: [Disc Detector] C:\Programmi\Creative\ShareDLL\CtNotify.exe
O4 - HKLM\..\Run: [iamapp] C:\Programmi\Norton Personal Firewall\IAMAPP.EXE
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [UMonit2K.exe] "C:\WINNT\System32\UMonit2K.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [msnappau] "C:\Programmi\MSN Apps\Updater\01.02.3000.1001\it\msnappau.exe"
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Programmi\File comuni\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [DSLSTATEXE] C:\Programmi\IPM\Adsl\DataWay\dslstat.exe icon
O4 - HKLM\..\Run: [DSLAGENTEXE] dslagent.exe USB
O4 - HKLM\..\Run: [Window_Protect] winsi32.exe
O4 - HKLM\..\Run: [Micrcoft Windows Updat] spoolsan.exe
O4 - HKLM\..\Run: [Sygate Personal Firewall] sp2hosts.exe
O4 - HKLM\..\Run: [Windows System Security] tqrnsp.exe
O4 - HKLM\..\Run: [Local Security Authority Service] C:\WINNT\System32\Isass.exe
O4 - HKLM\..\Run: [Windows Logon Application] C:\WINNT\System32\logon.exe
O4 - HKLM\..\RunServices: [Window_Protect] winsi32.exe
O4 - HKLM\..\RunServices: [Micrcoft Windows Updat] spoolsan.exe
O4 - HKLM\..\RunServices: [Sygate Personal Firewall] sp2hosts.exe
O4 - HKLM\..\RunServices: [Windows System Security] tqrnsp.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Programmi\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [Window_Protect] winsi32.exe
O4 - HKCU\..\Run: [Sygate Personal Firewall] sp2hosts.exe
O4 - HKCU\..\Run: [Windows System Security] tqrnsp.exe
O4 - Global Startup: Kodak EasyShare software.lnk = C:\Programmi\Kodak\Kodak EasyShare software\bin\EasyShare.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Programmi\WinZip\WZQKPICK.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
O12 - Plugin for .spop: C:\Programmi\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {E504EE6E-47C6-11D5-B8AB-00D0B78F3D48} (Yahoo! Webcam Viewer Wrapper) - http://chat.yahoo.com/cab/yvwrctl.cab
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) - http://chat.msn.com/bin/msnchat45.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{AF80EA66-F2C4-4B32-B16F-375A84C9A5D6}: NameServer = 85.37.17.11 151.99.125.1
O23 - Service: Managing FAT and NTFS partitions (Defragmentation Manager) - Unknown owner - C:\WINNT\System32\dfrgfat16.exe
O23 - Service: Servizio amministrativo di Gestione disco logico (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: Kodak Camera Connection Software (KodakCCS) - Eastman Kodak Company - C:\WINNT\system32\drivers\KodakCCS.exe
O23 - Service: Network DDE Client (NetDDEclnt) - Unknown owner - C:\WINNT\System32\netddeclnt.exe
O23 - Service: Norton Personal Firewall Service (NISSERV) - Symantec Corporation - C:\Programmi\Norton Personal Firewall\NISSERV.EXE
O23 - Service: Norton Personal Firewall Accounts Manager (NISUM) - Symantec Corporation - C:\Programmi\Norton Personal Firewall\NISUM.EXE
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINNT\System32\nvsvc32.exe
O23 - Service: ptssvc - KODAK - C:\Programmi\Kodak\Kodak EasyShare software\bin\ptssvc.exe
O23 - Service: ScsiAccess - Unknown owner - C:\WINNT\System32\ScsiAccess.EXE
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
O23 - Service: Norton Personal Firewall Proxy Service (SymProxySvc) - Symantec Corporation - C:\Programmi\Norton Personal Firewall\SymProxySvc.exe
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe

ità dos .

Ciao ,
esegui queste operazioni

riavvia in modalità provvisoria, leggi qui come fare
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=344&SH=N

apri HIJAC THIS ed elimina come indicato in questo articolo
http://www.aiutamici.com/software/descrizione.asp?CodSw=1175
le righe che seguono, (nel caso le righe da eliminare non compaiono in modalità provvisoria, eliminale dalla modalità normale e riavvia il computer).

==================================
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = EGhost_Reg_Fail
-
O2 - BHO: (no name) - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - (no file)
-
O4 - HKLM\..\Run: [Window_Protect] winsi32.exe
O4 - HKLM\..\Run: [Micrcoft Windows Updat] spoolsan.exe
O4 - HKLM\..\Run: [Sygate Personal Firewall] sp2hosts.exe
O4 - HKLM\..\Run: [Windows System Security] tqrnsp.exe
O4 - HKLM\..\Run: [Local Security Authority Service] C:\WINNT\System32\Isass.exe
O4 - HKLM\..\Run: [Windows Logon Application] C:\WINNT\System32\logon.exe
O4 - HKLM\..\RunServices: [Window_Protect] winsi32.exe
O4 - HKLM\..\RunServices: [Micrcoft Windows Updat] spoolsan.exe
O4 - HKLM\..\RunServices: [Sygate Personal Firewall] sp2hosts.exe
O4 - HKLM\..\RunServices: [Windows System Security] tqrnsp.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
-
O4 - HKCU\..\Run: [Window_Protect] winsi32.exe
O4 - HKCU\..\Run: [Sygate Personal Firewall] sp2hosts.exe
O4 - HKCU\..\Run: [Windows System Security] tqrnsp.exe
==================================

Con la funzione TROVA di Windows, cerca ed elimina questi file,

==================================
winsi32.exe
spoolsan.exe
sp2hosts.exe
tqrnsp.exe
Isass.exe
logon.exe
==================================


Vai a PANNELLO DI CONTROLLO e clicca su OPZIONI INTERNET
nella finestra che si apre clicca i tre pulsanti
ELIMINA COOKIES - ELIMINA FILE - CANCELLA CRONOOLOGIA


al termine utilizza i programmi AD-AWARE e SPYBOT indicati in questo articolo
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=388&SH=N

sempre in modalità provvisoria fai una scansione Antivirus.

Nel tuo sistema manca un programma antivirus oppure é stato disattivato dal virus, dopo le operazioni precedenti, fai una scansione on line da questo indirizzo
http://security.symantec.com/default.asp?productid=symhome&langid=it&venid=sym
se ci sono ancora virus ti conviene formattare e reinstallare tutto a nuovo.

Aggiorna il sistema dal Windows update, con tutti aggiornamenti sulla sicuurezza.

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Collaboratore Aiutamici