Grazie in anticipo !!
Logfile of HijackThis v1.98.2
Scan saved at 19.02.18, on 03/08/2005
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\system32\S24EvMon.exe
C:\Programmi\Sygate\SPF\smc.exe
C:\WINDOWS\system32\ZCfgSvc.exe
C:\WINDOWS\system32\1XConfig.exe
C:\Programmi\File comuni\Symantec Shared\ccProxy.exe
C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\Programmi\Norton Internet Security\ISSVC.exe
C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
C:\Programmi\File comuni\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\system32\RegSrvc.exe
C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\appmt32.exe
C:\Programmi\Intel\NCS\PROSet\PRONoMgr.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Programmi\APC_Power\Pwrchute.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Programmi\Norton Internet Security\Norton AntiVirus\OPScan.exe
C:\Programmi\Messenger\msmsgs.exe
F:\Downloads\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.euro.dell.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.euro.dell.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.168.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - Default URLSearchHook is missing
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: Class - {A6D3144C-5461-FC63-0E5D-0B292AB74B2C} - C:\WINDOWS\system32\javawd.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O2 - BHO: Class - {ABA7F993-DA7E-7B57-A8D0-A14855CCD81E} - C:\WINDOWS\d3nc.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O2 - BHO: Class - {E8672AC7-8611-4002-4486-F4856A5C2E37} - C:\WINDOWS\javamb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [PRONoMgr.exe] C:\Programmi\Intel\NCS\PROSet\PRONoMgr.exe
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [PowerChute] C:\Programmi\APC_Power\Pwrchute.exe -boot_time
O4 - HKLM\..\Run: [Recguard] C:\Programmi\HP\recguard.exe
O4 - HKLM\..\Run: [eTrust Realtime Monitor] C:\WINDOWS\system32\realmon.exe /start
O4 - HKLM\..\Run: [Apvxdwin] C:\WINDOWS\system32\APVXDWIN.EXE
O4 - HKLM\..\Run: [iexplore.exe] C:\Programmi\Internet Explorer\iexplore.exe
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKLM\..\Run: [IPSecMon] C:\Programmi\Common files\VPN Network\IPSecMon.exe /vpncheck
O4 - HKLM\..\RunOnce: [javaly.exe] C:\WINDOWS\javaly.exe
O4 - HKLM\..\RunOnce: [crwj32.exe] C:\WINDOWS\crwj32.exe
O4 - HKLM\..\RunOnce: [d3cq32.exe] C:\WINDOWS\system32\d3cq32.exe
O4 - HKLM\..\RunOnce: [atlcz.exe] C:\WINDOWS\atlcz.exe
O4 - HKLM\..\RunOnce: [javamb.exe] C:\WINDOWS\javamb.exe
O8 - Extra context menu item: &Google Search - res://c:\programmi\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Backward Links - res://c:\programmi\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\programmi\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Similar Pages - res://c:\programmi\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate into English - res://c:\programmi\google\GoogleToolbar2.dll/cmtrans.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra button: (no name) - {3F686D91-4AFA-4ed1-B43F-F1DB46ED480C} - (no file)
O9 - Extra 'Tools' menuitem: Link Filter - {3F686D91-4AFA-4ed1-B43F-F1DB46ED480C} - (no file)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O10 - Unknown file in Winsock LSP: c:\programmi\google\google desktop search\googledesktopnetwork1.dll
O10 - Unknown file in Winsock LSP: c:\programmi\google\google desktop search\googledesktopnetwork1.dll
O10 - Unknown file in Winsock LSP: c:\programmi\google\google desktop search\googledesktopnetwork1.dll
O15 - Trusted Zone: *.energyfactor.com
O15 - Trusted Zone: *.hardcorefantasyland.com
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab31267.cab
O16 - DPF: {22A88341-AFCB-45F0-A856-C2BAE74F878E} (InstallX Class) - http://www.20x2p.com/e21136f9/enter.cab
O16 - DPF: {58CDB34C-B4D7-418B-A0FB-C4C8A01C2F0E} (DIYBAR) - http://pi.51.net/download/diybar2.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab32846.cab
O16 - DPF: {FFFF0001-0001-101A-A3C9-08002B2F49FC} - http://download.energyfactor.com/dialer/it/activex_300_it.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{BE683126-0DC4-4151-A1E7-AD5BEF8934CB}: NameServer = 212.216.172.62,212.216.112.112
O18 - Filter: application/x-internet-signup - {A173B69A-1F9B-4823-9FDA-412F641E65D6} - C:\Programmi\Tiscali\Tiscali Internet\dlls\tiscalifilter.dll

Ciao ,
esegui queste operazioni

1) Disattiva il ripristino di configurazione, leggi qui come fare
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=257&SH=N

2) 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,Search Bar = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\crqvm.dll/sp.html#44768
-
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.168.0.1
-
R3 - Default URLSearchHook is missing
-
O2 - BHO: Class - {A6D3144C-5461-FC63-0E5D-0B292AB74B2C} - C:\WINDOWS\system32\javawd.dll
-
O2 - BHO: Class - {ABA7F993-DA7E-7B57-A8D0-A14855CCD81E} - C:\WINDOWS\d3nc.dll
-
O2 - BHO: Class - {E8672AC7-8611-4002-4486-F4856A5C2E37} - C:\WINDOWS\javamb.dll
-
O4 - HKLM\..\Run: [iexplore.exe] C:\Programmi\Internet Explorer\iexplore.exe
-
O4 - HKLM\..\RunOnce: [javaly.exe] C:\WINDOWS\javaly.exe
O4 - HKLM\..\RunOnce: [crwj32.exe] C:\WINDOWS\crwj32.exe
O4 - HKLM\..\RunOnce: [d3cq32.exe] C:\WINDOWS\system32\d3cq32.exe
O4 - HKLM\..\RunOnce: [atlcz.exe] C:\WINDOWS\atlcz.exe
O4 - HKLM\..\RunOnce: [javamb.exe] C:\WINDOWS\javamb.exe
-
O9 - Extra button: (no name) - {3F686D91-4AFA-4ed1-B43F-F1DB46ED480C} - (no file)
O9 - Extra 'Tools' menuitem: Link Filter - {3F686D91-4AFA-4ed1-B43F-F1DB46ED480C} - (no file)
-
O15 - Trusted Zone: *.energyfactor.com
O15 - Trusted Zone: *.hardcorefantasyland.com
-
O16 - DPF: {22A88341-AFCB-45F0-A856-C2BAE74F878E} (InstallX Class) - http://www.20x2p.com/e21136f9/enter.cab
O16 - DPF: {58CDB34C-B4D7-418B-A0FB-C4C8A01C2F0E} (DIYBAR) - http://pi.51.net/download/diybar2.cab
-
O16 - DPF: {FFFF0001-0001-101A-A3C9-08002B2F49FC} - http://download.energyfactor.com/dialer/it/activex_300_it.exe
==================================

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

==================================
appmt32.exe
crqvm.dll
sp.html
javawd.dll
d3nc.dll
javamb.dll
javaly.exe
crwj32.exe
d3cq32.exe
atlcz.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

quindi riavvia il computer e controlla se il problema e risolto, se e tutto OK riattiva il ripristino configurazione disattivato all'inizio di questa procedura.

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Collaboratore Aiutamici