Da qualche giorno quando clicco sui link della posta di Outlook non succede niente, nel senso che che non vengo rimandato al link desiderato. Ho installato da qualche settimana il firewall Outpost ma mi sembra che l'inconveniente sia apparso dopo che già utilizzavo il firewall. Che sia qulache virus?... Ho Nod 32)
Allego LOG

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11.40.32, on 27/07/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

Running processes:
D:\WINDOWS\System32\smss.exe
D:\WINDOWS\system32\winlogon.exe
D:\WINDOWS\system32\services.exe
D:\WINDOWS\system32\lsass.exe
D:\WINDOWS\system32\svchost.exe
D:\WINDOWS\System32\svchost.exe
D:\WINDOWS\system32\spoolsv.exe
D:\WINDOWS\Explorer.EXE
D:\WINDOWS\system32\RUNDLL32.EXE
D:\WINDOWS\RTHDCPL.EXE
D:\Programmi\Eset\nod32kui.exe
D:\Programmi\File comuni\Real\Update_OB\realsched.exe
D:\Programmi\a-squared Free\a2service.exe
D:\Programmi\File comuni\Acronis\Schedule2\schedul2.exe
D:\Programmi\Adobe\Acrobat 4.0\Distillr\AcroTray.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
D:\Programmi\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
D:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
D:\Programmi\Eset\nod32krn.exe
D:\Programmi\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
D:\Programmi\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
D:\WINDOWS\system32\nvsvc32.exe
D:\Programmi\Agnitum\Outpost Firewall\outpost.exe
D:\WINDOWS\system32\svchost.exe
D:\Programmi\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
D:\Programmi\eMule\emule.exe
D:\WINDOWS\System32\svchost.exe
D:\Programmi\uTorrent\uTorrent.exe
D:\Programmi\Outlook Express\msimn.exe
D:\Programmi\Internet Explorer\IEXPLORE.EXE
F:\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.com/0SEENUS/SAOS01?FORM=TOOLBR
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://g.msn.com/0SEENUS/SAOS01?FORM=TOOLBR
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://g.msn.com/0SEENUS/SAOS01?FORM=TOOLBR
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar con blocco Pop-Up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - D:\Programmi\Google\GoogleToolbarNotifier\2.1.1119.1736\swg.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE D:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE D:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [NeroFilterCheck] D:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [nod32kui] "D:\Programmi\Eset\nod32kui.exe" /WAITSERVICE
O4 - HKLM\..\Run: [ISUSPM Startup] D:\PROGRA~1\FILECO~1\INSTAL~1\UPDATE~1\ISUSPM.exe -startup
O4 - HKLM\..\Run: [ScanSoft OmniPage 16-reminder] "D:\Programmi\ScanSoft\OmniPage16\Ereg\Ereg.exe" -r "D:\Documents and Settings\All Users\Dati applicazioni\ScanSoft\OmniPage 16\Ereg\Ereg.ini"
O4 - HKLM\..\Run: [Outpost Firewall] "D:\Programmi\Agnitum\Outpost Firewall\outpost.exe" /waitservice
O4 - HKLM\..\Run: [OutpostFeedBack] D:\Programmi\Agnitum\Outpost Firewall\feedback.exe /dump:os_startup
O4 - HKLM\..\Run: [TkBellExe] "D:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKCU\..\Run: [OpAgent] "OpAgent.exe" /agent
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Global Startup: Acrobat Assistant.lnk = D:\Programmi\Adobe\Acrobat 4.0\Distillr\AcroTray.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://D:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - D:\Programmi\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - D:\Programmi\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra button: Outpost Firewall Pro Regolazione rapida - {44627E97-789B-40d4-B5C2-58BD171129A1} - D:\Programmi\Agnitum\Outpost Firewall\Plugins\BrowserBar\ie_bar.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O15 - Trusted Zone: http://download.windowsupdate.com
O17 - HKLM\System\CCS\Services\Tcpip\..\{623C86C3-C0A9-42D7-AA6F-C8B5C59AEC0D}: NameServer = 192.168.1.254
O17 - HKLM\System\CS1\Services\Tcpip\..\{623C86C3-C0A9-42D7-AA6F-C8B5C59AEC0D}: NameServer = 192.168.1.254
O17 - HKLM\System\CS2\Services\Tcpip\..\{623C86C3-C0A9-42D7-AA6F-C8B5C59AEC0D}: NameServer = 192.168.1.254
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - D:\Programmi\a-squared Free\a2service.exe
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - D:\Programmi\File comuni\Acronis\Schedule2\schedul2.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - D:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Forceware Web Interface (ForcewareWebInterface) - Apache Software Foundation - D:\Programmi\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
O23 - Service: Google Updater Service (gusvc) - Google - D:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: NOD32 Kernel Service (NOD32krn) - Eset - D:\Programmi\Eset\nod32krn.exe
O23 - Service: ForceWare IP service (nSvcIp) - NVIDIA Corporation - D:\Programmi\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
O23 - Service: ForceWare user log service (nSvcLog) - NVIDIA Corporation - D:\Programmi\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - D:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Outpost Firewall Service (OutpostFirewall) - Agnitum Ltd. - D:\Programmi\Agnitum\Outpost Firewall\outpost.exe
O23 - Service: Symantec Core LC - Unknown owner - D:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Utilità di pianificazione di LiveUpdate automatico - Unknown owner - D:\Programmi\Symantec\LiveUpdate\ALUSchedulerSvc.exe (file missing)

--
End of file - 7082 bytes
GRAZIE

Ciao.
Fixa questa voce di HijackThis :
O4 - HKCU\..\Run: [OpAgent] "OpAgent.exe" /agent
Fai una scansione in Modalità Provvisoria con il Nod32.
Dai una pulita (registro compreso)con CCleaner http://www.aiutaamici.com/software?ID=11223
Puoi fare una prova:disistalla il firewall, e vedi se tutto torna normale.
Vediamo se hai risolto.