Esegui 
Logfile of HijackThis v1.98.2
Scan saved at 19.41.25, on 20/10/2004
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)
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:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\windowssvc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\atiptaxx.exe
C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb04.exe
C:\Programmi\Hewlett-Packard\PhotoSmart\Photo Imaging\Hpi_Monitor.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Programmi\Messenger\msmsgs.exe
C:\WINDOWS\System32\snlogsvc.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Programmi\Norton AntiVirus\navapsvc.exe
C:\Programmi\Norton AntiVirus\SAVScan.exe
C:\Documents and Settings\Canaccini.ANDREA.001\Desktop\Ame\hijackthis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://gw.virgilio.it/free.minisearch
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.virgilio.it/free
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.virgilio.it/free
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.estranet.it
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.interfree.it/benvenuti.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer fornito da Tin.it
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Programmi\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Programmi\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [AtiPTA] atiptaxx.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb04.exe
O4 - HKLM\..\Run: [CXMon] "C:\Programmi\Hewlett-Packard\PhotoSmart\Photo Imaging\Hpi_Monitor.exe"
O4 - HKLM\..\Run: [WorksFUD] C:\Programmi\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Programmi\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Programmi\Microsoft Works\WkDetect.exe
O4 - HKLM\..\Run: [WinampAgent] "C:\Programmi\Winamp3\winampa.exe"
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [avserve2.exe] C:\WINDOWS\avserve2.exe
O4 - HKLM\..\Run: [52D55595] C:\WINDOWS\System32\gcywxgbmtitu.exe
O4 - HKLM\..\Run: [System Update] C:\WINDOWS\System32\akszxg.exe
O4 - HKLM\..\Run: [Microsoft Update] snlogsvc.exe
O4 - HKLM\..\Run: [regsrv] scvhost.exe
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Programmi\File comuni\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\RunServices: [Microsoft Update] snlogsvc.exe
O4 - HKLM\..\RunServices: [regsrv] scvhost.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Microsoft Update] snlogsvc.exe
O9 - Extra button: ATI TV - {44226DFF-747E-4edc-B30C-78752E50CD0C} - C:\Programmi\ATI Multimedia\TV\EXPLBAR.DLL
O9 - Extra button: Organizzatore ricerche - {9455301C-CF6B-11D3-A266-00C04F689C50} - C:\Programmi\File comuni\Microsoft Shared\Encarta Researcher\EROProj.dll
O9 - Extra button: Umail - {2E7DB741-AEB0-4445-B103-0357A9C0CB9D} - http://www.umail.it (file missing) (HKCU)
O14 - IERESET.INF: START_PAGE_URL=http://www.virgilio.it/free
Poi volevo qualche informazione su come rimuovere il virus: W32.Spybot.worm e Trojan.Croem
Grazie
