Potete controllare il mio log grazie
Logfile of HijackThis v1.99.1
Scan saved at 9.52.24, on 12/04/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Messenger\msmsgs.exe
C:\WINDOWS\sm56hlpr.exe
C:\Programmi\QuickTime\qttask.exe
C:\Programmi\BHODemon 2\BHODemon.exe
C:\Programmi\AVPersonal\AVWUPSRV.EXE
C:\WINDOWS\System32\drivers\CDAC11BA.EXE
C:\Programmi\File comuni\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\system32\cmd.exe
C:\WINDOWS\system32\cmd.exe
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\System32\wuauclt.exe
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Programmi\Outlook Express\msimn.exe
C:\Documents and Settings\Matteo Pavan\Desktop\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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
O4 - HKLM\..\Run: [SMSERIAL] sm56hlpr.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb07.exe
O4 - HKLM\..\Run: [wupdate] C:\WINDOWS\System32\wisvccz.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [djnobmq] c:\windows\mjxqdbi.exe
O4 - Startup: BHODemon 2.0.lnk = C:\Programmi\BHODemon 2\BHODemon.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Programmi\File comuni\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1113291862708
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {8EC18CE2-D7B4-11D2-88C8-006008A717FD} (NCSView Class) - http://ww3.atlanteitaliano.it/ecwplugins/ncs.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = local.lan
O17 - HKLM\Software\..\Telephony: DomainName = local.lan
O17 - HKLM\System\CCS\Services\Tcpip\..\{EBBF6EAD-1AA3-4BEB-8FE7-0FCCE87B7440}: NameServer = 193.70.192.25,193.70.152.25
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = local.lan
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = local.lan
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Programmi\AVPersonal\AVWUPSRV.EXE
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\System32\drivers\CDAC11BA.EXE

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).

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O4 - HKLM\..\Run: [wupdate] C:\WINDOWS\System32\wisvccz.exe
-
O4 - HKCU\..\Run: [djnobmq] c:\windows\mjxqdbi.exe
==================================

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

==================================
wisvccz.exe
mjxqdbi.exe
==================================

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