Grazie Alfonso, ecco il mio log
Logfile of HijackThis v1.99.1
Scan saved at 19.27.30, on 16/05/2005
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\Programmi\Norton Internet Security\NISUM.EXE
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Norton Internet Security\ccPxySvc.exe
C:\WINDOWS\System32\GEARSec.exe
C:\Programmi\Norton AntiVirus\navapsvc.exe
F:\Programmi\Symantec\Norton Ghost\Agent\PQV2iSvc.exe
C:\Programmi\Java\j2re1.4.2_03\bin\jusched.exe
F:\Programmi\Symantec\Norton Ghost\Agent\GhostTray.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\PROGRA~1\NORTON~3\NORTON~1\NPROTECT.EXE
C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
C:\Programmi\Hewlett-Packard\Digital Imaging\Unload\hpqcmon.exe
C:\WINDOWS\system32\vdbj.exe
C:\Programmi\IPM\Adsl\SpeedWeb\DslDrv\gsicon.exe
C:\Programmi\Samsung\Samsung Multimedia Keyboard\HCM.exe
C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnf.exe
C:\PROGRA~1\NORTON~3\NORTON~1\SPEEDD~1\NOPDB.EXE
C:\WINDOWS\System32\svchost.exe
F:\PROGRA~1\INCRED~1\bin\IMApp.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Programmi\Raxco\PerfectDisk\PDSched.exe
C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe
C:\WINDOWS\system32\vdbj.exe
C:\WINDOWS\system32\vdbj.exe
C:\Programmi\Internet Explorer\iexplore.exe
F:\Programmi\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.virgilio.it/home/index.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - F:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: DgnWebIE - {2843DAC1-05EF-11D2-95BA-0060083493D6} - f:\Programmi\Dragon Systems\NaturallySpeaking\Program\web_ie.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar3.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Programmi\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Programmi\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar3.dll
O4 - HKLM\..\Run: [Tweak UI] RUNDLL32.EXE TWEAKUI.CPL,TweakMeUp
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [Norton Ghost 9.0] F:\Programmi\Symantec\Norton Ghost\Agent\GhostTray.exe
O4 - HKLM\..\Run: [ccRegVfy] "C:\Programmi\File comuni\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ATIPTA] C:\PROGRAMMI\ATI TECHNOLOGIES\ATI CONTROL PANEL\ATIPTAXX.EXE
O4 - HKLM\..\Run: [Share-to-Web Namespace Daemon] C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
O4 - HKLM\..\Run: [CamMonitor] C:\Programmi\Hewlett-Packard\Digital Imaging\Unload\hpqcmon.exe
O4 - HKLM\..\Run: [JVM0.14] C:\WINDOWS\system32\vdbj.exe
O4 - HKCU\..\Run: [IncrediMail] F:\Programmi\IncrediMail\bin\IncMail.exe /c
O4 - Startup: Collegamento a gsicon (2).lnk = C:\Programmi\IPM\Adsl\SpeedWeb\DslDrv\gsicon.exe
O4 - Startup: Samsung Multimedia Keyboard.lnk = C:\Programmi\Samsung\Samsung Multimedia Keyboard\HCM.exe
O8 - Extra context menu item: &Add animation to IncrediMail Style Box - F:\PROGRA~1\INCRED~1\bin\resources\WebMenuImg.htm
O8 - Extra context menu item: &Google Search - res://c:\programmi\google\GoogleToolbar3.dll/cmsearch.html
O8 - Extra context menu item: Collegamenti a ritroso - res://c:\programmi\google\GoogleToolbar3.dll/cmbacklinks.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Pagine simili - res://c:\programmi\google\GoogleToolbar3.dll/cmsimilar.html
O8 - Extra context menu item: Scarica con Download &Express - F:\Programmi\Download Express\Add_Url.htm
O8 - Extra context menu item: Versione cache della pagina - res://c:\programmi\google\GoogleToolbar3.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O16 - DPF: symsupportutil - https://www-secure.symantec.com/region/it/techsupp/activedata/symsupportutil.CAB
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=36467&clcid=0x409
O16 - DPF: {8EDAD21C-3584-4E66-A8AB-EB0E5584767D} - http://toolbar.google.com/data/GoogleActivate.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{E47E7B17-C316-400D-9BAA-A8DD5BE228EF}: NameServer = 80.21.70.171 151.99.125.1
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation Service (ccPwdSvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Proxy Service (ccPxySvc) - Symantec Corporation - C:\Programmi\Norton Internet Security\ccPxySvc.exe
O23 - Service: GEARSecurity - GEAR Software - C:\WINDOWS\System32\GEARSec.exe
O23 - Service: Servizio Norton AntiVirus Auto-Protect (navapsvc) - Symantec Corporation - C:\Programmi\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Internet Security Accounts Manager (NISUM) - Symantec Corporation - C:\Programmi\Norton Internet Security\NISUM.EXE
O23 - Service: Norton Ghost - Symantec Corporation - F:\Programmi\Symantec\Norton Ghost\Agent\PQV2iSvc.exe
O23 - Service: Norton Unerase Protection (NProtectService) - Symantec Corporation - C:\PROGRA~1\NORTON~3\NORTON~1\NPROTECT.EXE
O23 - Service: PDEngine - Raxco Software, Inc. - C:\Programmi\Raxco\PerfectDisk\PDEngine.exe
O23 - Service: PDScheduler (PDSched) - Raxco Software, Inc. - C:\Programmi\Raxco\PerfectDisk\PDSched.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\FILECO~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
O23 - Service: Speed Disk service - Symantec Corporation - C:\PROGRA~1\NORTON~3\NORTON~1\SPEEDD~1\NOPDB.EXE
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe

Ok : eseguito, Avanzi una bevuta