ciao a tutti, sono nuovo

avrei un problema di risolvere

desktop con windows 2000pro aggiornato, avast antivirus aggiornato, zonealarm

da qualche giorno non posso accedere ad alcuni siti, quasi tutti inerenti la sicruezza, ad esempio le pagine e il forum di comodo, punto-informatico.it..... dopo una trentina di secondi di attesa, mi compare la scirtta nella barra inferiore di firefox "completato" e la pagina completamente bianca

oggi mi sono accorto che non mi fa accedere alla pagina di windows update

per facilitare una possibile diagnosi allego i log di hijackthis, grazie anticipate a chi saprà darmi un consiglio


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 23.20.33, on 18/03/09
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Boot mode: Normal

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\ZoneLabs\vsmon.exe
C:\WINNT\system32\spoolsv.exe
g:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
g:\Programmi\Alwil Software\Avast4\ashServ.exe
C:\WINNT\system32\DRIVERS\CDANTSRV.EXE
C:\WINNT\system32\E_S00RP2.EXE
C:\WINNT\System32\svchost.exe
D:\Bus\MSSQL\Binn\sqlservr.exe
C:\WINNT\system32\PDFCreatorMessages.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\stisvc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
g:\Programmi\Intel\Intel(R) Active Monitor\imonnt.exe
C:\WINNT\Explorer.EXE
D:\Bus\MSSQL\Binn\sqlagent.EXE
C:\Programmi\Analog Devices\SoundMAX\Smtray.exe
G:\Programmi\Iomega\DriveIcons\ImgIcon.exe
G:\Programmi\JawsSystems\Jaws PDF Creator\PDFClient.exe
C:\WINNT\Dit.exe
C:\WINNT\DitExp.exe
G:\Programmi\QuickTime\qttask.exe
G:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Programmi\DShutdown\RDShutdown.exe
G:\Programmi\Intel\Intel(R) Active Monitor\imontray.exe
G:\Programmi\PowerISO\PWRISOVM.EXE
C:\Programmi\Zone Labs\ZoneAlarm\zlclient.exe
C:\Programmi\File comuni\Real\Update_OB\realsched.exe
C:\WINNT\system32\internat.exe
G:\Programmi\ashampoo\Ashampoo UnInstaller Suite\UIWatcher.exe
C:\Programmi\Microsoft ActiveSync\Wcescomm.exe
G:\Programmi\PeerGuardian2\pg2.exe
C:\PROGRA~1\MICROS~3\rapimgr.exe
G:\Programmi\Silicon Image\SiISATARaid\SATARaid.exe
C:\Programmi\Microsoft SQL Server\80\Tools\Binn\sqlmangr.exe
G:\Programmi\FreePOPs\freepopsd.exe
g:\Programmi\Alwil Software\Avast4\ashWebSv.exe
g:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
C:\Documents and Settings\Administrator\Desktop\strumenti vari per rimozioni virus\HijackThis.exe
C:\Programmi\Mozilla Firefox\firefox.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - G:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Smapp] "C:\Programmi\Analog Devices\SoundMAX\Smtray.exe"
O4 - HKLM\..\Run: [PMXInit] C:\WINNT\System32\pmxinit.exe
O4 - HKLM\..\Run: [Iomega Drive Icons] g:\Programmi\Iomega\DriveIcons\ImgIcon.exe
O4 - HKLM\..\Run: [Deskup] "g:\Programmi\Iomega\DriveIcons\deskup.exe" /IMGSTART
O4 - HKLM\..\Run: [PDFCreatorClient] "g:\Programmi\JawsSystems\Jaws PDF Creator\PDFClient.exe"
O4 - HKLM\..\Run: [Dit] Dit.exe
O4 - HKLM\..\Run: [QuickTime Task] "G:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [avast!] g:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [RDShutdown] "C:\Programmi\DShutdown\RDShutdown.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINNT\system32\NeroCheck.exe
O4 - HKLM\..\Run: [IMONTRAY] g:\Programmi\Intel\Intel(R) Active Monitor\imontray.exe
O4 - HKLM\..\Run: [PWRISOVM.EXE] g:\Programmi\PowerISO\PWRISOVM.EXE
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Programmi\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\RunOnce: [Malwarebytes' Anti-Malware] C:\Programmi\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [UIWatcher] G:\Programmi\ashampoo\Ashampoo UnInstaller Suite\UIWatcher.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Programmi\Microsoft ActiveSync\Wcescomm.exe"
O4 - HKCU\..\Run: [PeerGuardian] G:\Programmi\PeerGuardian2\pg2.exe
O4 - HKUS\.DEFAULT\..\Run: [internat.exe] internat.exe (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [^SetupICWDesktop] C:\Programmi\Internet Explorer\Connection Wizard\icwconn1.exe /desktop (User 'Default user')
O4 - Startup: Collegamento a freepopsd.exe.lnk = G:\Programmi\FreePOPs\freepopsd.exe
O4 - Global Startup: Avvio veloce di Adobe Reader.lnk = G:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: SATARaid.lnk = G:\Programmi\Silicon Image\SiISATARaid\SATARaid.exe
O4 - Global Startup: Service Manager.lnk = C:\Programmi\Microsoft SQL Server\80\Tools\Binn\sqlmangr.exe
O8 - Extra context menu item: Scarica con Download &Express - g:\Programmi\Download Express\Add_Url.htm
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra 'Tools' menuitem: Crea preferiti portatile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra button: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - g:\Programmi\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - g:\Programmi\WinHTTrack\WinHTTrackIEBar.dll
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partner/default/kavwebscan_unicode.cab
O16 - DPF: {2D8ED06D-3C30-438B-96AE-4D110FDC1FB8} (ActiveScan 2.0 Installer Class) - http://acs.pandasoftware.com/activescan/cabs/as2stubie.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1122529522031
O16 - DPF: {8436FE12-31DB-48BF-83BF-FE682F9160B4} (NanoInstaller Class) - http://www.nanoscan.com/cabs/nanoinst.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {F281A59C-7B65-11D3-8617-0010830243BD} (Controllo AcPreview) - file://G:\Programmi\AutoCAD 2002 Ita\AcPreview.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{873BA961-5F1D-4A89-86CB-1E8F1F1C44E9}: NameServer = 151.99.125.2,151.99.250.2
O17 - HKLM\System\CS1\Services\Tcpip\..\{0C6B7DC0-D0D1-40BF-BB6F-109728E384E7}: NameServer = 151.99.125.2,151.99.250.2
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - g:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - g:\Programmi\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - g:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - g:\Programmi\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: C-DillaSrv - C-Dilla Ltd - C:\WINNT\system32\DRIVERS\CDANTSRV.EXE
O23 - Service: Servizio amministrativo di Gestione disco logico (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: EPSON V3 Service2(02) (EPSON_PM_RPCV2_02) - SEIKO EPSON CORPORATION - C:\WINNT\system32\E_S00RP2.EXE
O23 - Service: Intel(R) Active Monitor (imonNT) - Intel Corp. - g:\Programmi\Intel\Intel(R) Active Monitor\imonnt.exe
O23 - Service: PDFCreatorMessages - Global Graphics Software Ltd - C:\WINNT\system32\PDFCreatorMessages.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINNT\system32\ZoneLabs\vsmon.exe

--
End of file - 7721 bytes

Ciao.
Molto probabilmente ti sei beccato la "piaga" di questi ultimi mesi: il Worm Confiker.(9 milioni di pc infetti)
Ti consiglio di effettuare un aggiornamento urgente di una patch di sicurezza valida per Win XP, 2000 e Server 2003.
http://www.microsoft.com/technet/security/Bulletin/MS08-067.mspx/
Poi prova a fare delle scansioni con il tuo antivirus.

ciao,

prima di passare all'uso di specifici tool, se ci riesci, prova a fare uno scan online Kaspersky e posta il suo log