Scusa Alfonso,
Mi permetto di intervenire ... purtroppo ne studiano una piu del diavolo...

La pagina "about blank" potrebbe anche essere un trojan oppure uno spyware sul tipo di CoolWebSearch.
Ho trovato queste info qui:
http://www.romanelmondo.it/sugg/startpage.htm
e qui
http://www.zerosrealm.com/index.php?page=dllfix

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PITIPU, oltre che Hijack scarica anche CWShredder
http://www.aiutamici.com/software/descrizione.asp?CodSw=996

e posta il log di Hijack come ti ha indicato Alfonso...
ciao Robi

Logfile of HijackThis v1.97.7
Scan saved at 9.27.14, on 01/11/04
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAMMI\FILE COMUNI\MICROSOFT SHARED\VS7DEBUG\MDM.EXE
C:\PROGRAMMI\FILE COMUNI\SYSTEM\MOSEARCH\BIN\MOSEARCH.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\PSTORES.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\WINDOWS\LOADQM.EXE
C:\WINDOWS\SYSTEM\CTFMON.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAMMI\INTERNET EXPLORER\IEXPLORE.EXE
C:\DOCUMENTI\SPY\COPIA DI HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = www.google.it
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = www.google.it
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = www.google.it
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = www.google.it
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = www.google.it
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = http://www.google.it
R3 - Default URLSearchHook is missing
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHELPER.DLL
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [DXM6Patch_981116] C:\WINDOWS\p_981116.exe /Q:A
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [SpyBlocs] C:\PROGRAMMI\SPYBLOCS\SpyBlocs.exe
O4 - HKLM\..\Run: [zSPGuard] c:\programmi\pjw\spguard\spguard.exe /s
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [MDM7] "C:\PROGRAMMI\FILE COMUNI\MICROSOFT SHARED\VS7DEBUG\MDM.EXE"
O4 - HKLM\..\RunServices: [MOSearch] C:\PROGRA~1\FILECO~1\SYSTEM\MOSEARCH\BIN\MOSEARCH.EXE
O4 - HKCU\..\Run: [ctfmon.exe] ctfmon.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O9 - Extra button: ICQ Lite (HKLM)
O9 - Extra 'Tools' menuitem: ICQ Lite (HKLM)
O9 - Extra button: Real.com (HKLM)
O10 - Unknown file in Winsock LSP: c:\programmi\panda software\panda titanium antivirus 2004\pavlsp.dll
O10 - Unknown file in Winsock LSP: c:\programmi\panda software\panda titanium antivirus 2004\pavlsp.dll
O10 - Unknown file in Winsock LSP: c:\programmi\panda software\panda titanium antivirus 2004\pavlsp.dll
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) -
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} -
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) -
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) -
O16 - DPF: {A3009861-330C-4E10-822B-39D16EC8829D} -
O16 - DPF: {C81B5180-AFD1-41A3-97E1-99E8D254DB98} -

PER IL SECONDO PROGRAMMA SHREDDER QUANDO PROVO A FARE L'UPDATE UNA VOLTA FINITO, TOLTO DA ZIP E CLIKKATO SULL'ICONA NON ME LO FA APRIRE. MENTRE POSSO APRIRE LA VERSIONE VECCHIA TRANQUILLAMENTE...IL CHè MI INSOSPETTISCE.
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Non noto problemi nel tuo LOG

per ABOUT BLANK a cosa ti riferisci, dove lo hai letto?

Prova a riavviare il computer in Modalità provvisoria premendo il tasto F8 prima che inizi a caricarsi windows e lancia i programmi AD-AWARE e SPYBOT oltre naturalmente al programma Antivirus.

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Collaboratore Aiutamici