Logfile of HijackThis v1.99.1
Scan saved at 9.59.37, on 31/05/2005
Platform: Windows 2000 SP3 (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\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
C:\Programmi\Alwil Software\Avast4\ashServ.exe
C:\WINNT\System32\drivers\CDAC11BA.EXE
C:\WINNT\System32\nvsvc32.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\Explorer.EXE
C:\Programmi\Alwil Software\Avast4\ashWebSv.exe
C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
C:\WINNT\System32\RunDll32.exe
C:\WINNT\Anvshell.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINNT\System32\cber.exe
C:\Documents and Settings\Roby\Dati applicazioni\sgrunt\IE4321.exe
C:\Programmi\RealVNC\WinVNC\winvnc.exe
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\WINNT\System32\vxgame1.exe
D:\Utility\HiJack\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = www.skymasters.biz?2015
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar1.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [Anvshell] C:\WINNT\Anvshell.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINNT\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [System] C:\WINNT\System32\cber.exe
O4 - HKLM\..\Run: [Olympic] C:\Documents and Settings\Roby\Dati applicazioni\sgrunt\IE4321.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: Run VNC Server.lnk = C:\Programmi\RealVNC\WinVNC\winvnc.exe
O8 - Extra context menu item: &Google Search - res://C:\Programmi\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Collegamenti a ritroso - res://C:\Programmi\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pagine simili - res://C:\Programmi\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Versione cache della pagina - res://C:\Programmi\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O15 - Trusted Zone: www.archiviosex.net
O15 - Trusted Zone: www.linkautomatici.com
O15 - Trusted Zone: www.redfunny.com
O15 - Trusted Zone: www.sgrunt.biz
O15 - Trusted Zone: www.skymasters.biz
O16 - DPF: {FFFF0003-0001-101A-A3C9-08002B2F49FB} - http://www.sgrunt.biz/closer/close.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{6CF44B88-3835-4AC9-BC03-E0248D8F7C9A}: NameServer = 212.216.112.222,212.216.172.62
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: C-DillaCdaC11BA - Macrovision - C:\WINNT\System32\drivers\CDAC11BA.EXE
O23 - Service: Servizio amministrativo di Gestione disco logico (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINNT\System32\nvsvc32.exe

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).

==================================
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = www.skymasters.biz?2015
-
O4 - HKLM\..\Run: [System] C:\WINNT\System32\cber.exe
O4 - HKLM\..\Run: [Olympic] C:\Documents and Settings\Roby\Dati applicazioni\sgrunt\IE4321.exe
-
O15 - Trusted Zone: www.archiviosex.net
O15 - Trusted Zone: www.linkautomatici.com
O15 - Trusted Zone: www.redfunny.com
O15 - Trusted Zone: www.sgrunt.biz
O15 - Trusted Zone: www.skymasters.biz
O16 - DPF: {FFFF0003-0001-101A-A3C9-08002B2F49FB} - http://www.sgrunt.biz/closer/close.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{6CF44B88-3835-4AC9-BC03-E0248D8F7C9A}: NameServer = 212.216.112.222,212.216.172.62
-
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)
==================================

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

==================================
cber.exe
IE4321.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
poi clicca il pulsante PAGINA PREDEFINITA e su OK

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.

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Collaboratore Aiutamici