Logfile of HijackThis v1.99.1
Scan saved at 0.31.47, on 01/07/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
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\LEXBCES.EXE
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
C:\Programmi\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\hidserv.exe
C:\WINDOWS\system32\MSTask.exe
C:\WINDOWS\System32\WBEM\WinMgmt.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Alwil Software\Avast4\ashWebSv.exe
C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\S3tray.exe
C:\Program Files\D-Link\DSL-200\dslstat.exe
C:\Program Files\D-Link\DSL-200\dslagent.exe
C:\WINDOWS\Dit.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\DitExp.exe
C:\WINDOWS\system32\LXSUPMON.EXE
C:\Programmi\QuickTime\qttask.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\system32\internat.exe
C:\Programmi\Psion\PsiWin\Psconsv.exe
C:\Programmi\Digisoft AntiDialer\AntiDialer.exe
C:\Programmi\Microsoft Office\Office\1040\msoffice.exe
C:\PROGRA~1\Psion\PsiWin\Elogerr.exe
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\PROGRA~1\WINZIP\winzip32.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Temp\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\system32\msdxm.ocx
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [S3TRAY] S3tray.exe
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [DSLSTATEXE] C:\Program Files\D-Link\DSL-200\dslstat.exe icon
O4 - HKLM\..\Run: [DSLAGENTEXE] C:\Program Files\D-Link\DSL-200\dslagent.exe
O4 - HKLM\..\Run: [Dit] Dit.exe
O4 - HKLM\..\Run: [AdslTaskBar] rundll32.exe stmctrl.dll,TaskBar
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Programmi\File comuni\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [PrinTray] C:\WINDOWS\system32\spool\DRIVERS\W32X86\2\printray.exe
O4 - HKLM\..\Run: [LXSUPMON] C:\WINDOWS\system32\LXSUPMON.EXE RUN
O4 - HKLM\..\Run: [LXCFCATS] rundll32 C:\WINDOWS\system32\spool\DRIVERS\W32X86\3\LXCFtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: Server di collegamento di PsiWin 2.3.lnk = C:\Programmi\Psion\PsiWin\Psconsv.exe
O4 - Global Startup: Digisoft AntiDialer.lnk = C:\Programmi\Digisoft AntiDialer\AntiDialer.exe
O12 - Plugin for .spop: C:\Programmi\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {62475759-9E84-458E-A1AB-5D2C442ADFDE} - http://a1540.g.akamai.net/7/1540/52/20060104/qtinstall.info.apple.com/snape/us/win/QuickTimeInstaller.exe
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/mcfscan/2,1,0,4779/mcfscan.cab
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Servizio amministrativo di Gestione disco logico (dmadmin) - VERITAS Software Corp. - C:\WINDOWS\System32\dmadmin.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: lxcf_device - Unknown owner - C:\WINDOWS\system32\lxcfcoms.exe
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe

Il log é pulito ma per la prossima volta , continua sempre allo stesso post , non aprire un topic per ogni log , altrimenti non si fà altro che disperdere le notizie , che potrebbero essere utili per molti altri utenti...

PS: - Dovresti installare anche un firewall diverso da quello di Windows
ZoneAlarm-->>http://www.aiutamici.com/software/descrizione.asp?CodSw=56