Con questo programma che mi hai indicato sono riuscito a portare a termine il controllo di HijackThis.
Tengo a precisare che, benchè installato non uso mai IE ma Firefox


Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 13:14:42, on 11/09/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)
Boot mode: Normal

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:\Programmi\COMODO\COMODO Internet Security\cmdagent.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Avira\AntiVir Desktop\sched.exe
C:\Programmi\Avira\AntiVir Desktop\avgnt.exe
C:\Programmi\COMODO\COMODO Internet Security\cfp.exe
C:\Programmi\AVG Secure Search\vprot.exe
C:\Programmi\AnVir Task Manager Free\AnVir.exe
C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
C:\Programmi\Avira\AntiVir Desktop\avguard.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\PANDORA.TV\PanService\PandoraService.exe
C:\Programmi\Macrium\Reflect\ReflectService.exe
C:\WINDOWS\Installer\MSI552.tmp
C:\WINDOWS\system32\svchost.exe
C:\Programmi\File comuni\AVG Secure Search\vToolbarUpdater\12.2.6\ToolbarUpdater.exe
C:\Programmi\Avira\AntiVir Desktop\avshadow.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Mozilla Firefox\plugin-container.exe
C:\WINDOWS\system32\msiexec.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
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: btorbit.com - {000123B4-9B42-4900-B3F7-F4B073EFC214} - C:\Programmi\Orbitdownloader\orbitcth.dll
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Programmi\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre6\bin\ssv.dll
O2 - BHO: AVG Security Toolbar - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Programmi\AVG Secure Search\12.2.5.32\AVG Secure Search_toolbar.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\5.7.7227.1100\swg.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Grab Pro - {C55BBCD6-41AD-48AD-9953-3609C48EACC7} - C:\Programmi\Orbitdownloader\GrabPro.dll
O3 - Toolbar: AVG Security Toolbar - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Programmi\AVG Secure Search\12.2.5.32\AVG Secure Search_toolbar.dll
O4 - HKLM\..\Run: [avgnt] "C:\Programmi\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [COMODO Internet Security] "C:\Programmi\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKLM\..\Run: [HF_G_Jul] "C:\Programmi\AVG Secure Search\HF_G_Jul.exe" /DoAction
O4 - HKLM\..\Run: [vProt] "C:\Programmi\AVG Secure Search\vprot.exe"
O4 - HKLM\..\Run: [ROC_ROC_JULY_P1] "C:\Programmi\AVG Secure Search\ROC_ROC_JULY_P1.exe" / /PROMPT /CMPID=ROC_JULY_P1
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [AnVir Task Manager Free] "C:\Programmi\AnVir Task Manager Free\AnVir.exe" Minimized
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: &Download by Orbit - res://C:\Programmi\Orbitdownloader\orbitmxt.dll/201
O8 - Extra context menu item: &Grab video by Orbit - res://C:\Programmi\Orbitdownloader\orbitmxt.dll/204
O8 - Extra context menu item: Do&wnload selected by Orbit - res://C:\Programmi\Orbitdownloader\orbitmxt.dll/203
O8 - Extra context menu item: Down&load all by Orbit - res://C:\Programmi\Orbitdownloader\orbitmxt.dll/202
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1239469460484
O16 - DPF: {C1BAC744-8F0B-11D0-89E7-00C0A8295197} (Cameractl Class) - http://www.crtvg.es/camweb/camera.cab
O18 - Protocol: viprotocol - {B658800C-F66E-4EF3-AB85-6C0C227862A9} - C:\Programmi\File comuni\AVG Secure Search\ViProtocolInstaller\12.2.6\ViProtocol.dll
O20 - AppInit_DLLs: c:\windows\system32\guard32.dll C:\WINDOWS\system32\guard32.dll
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Avira Pianificatore (AntiVirSchedulerService) - Avira Operations GmbH & Co. KG - C:\Programmi\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira Realtime Protection (AntiVirService) - Avira Operations GmbH & Co. KG - C:\Programmi\Avira\AntiVir Desktop\avguard.exe
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - COMODO - C:\Programmi\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: FLEXnet Licensing Service - Acresso Software Inc. - C:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Servizio di Google Update (gupdate1c9c383d9272c48) (gupdate1c9c383d9272c48) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: Ma-Config Service (maconfservice) - Unknown owner - C:\Programmi\ma-config.com\maconfservice.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Programmi\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: PandoraService (PanService) - Pandora.TV - C:\Programmi\PANDORA.TV\PanService\PandoraService.exe
O23 - Service: Macrium Reflect Image Mounting Service (ReflectService) - Unknown owner - C:\Programmi\Macrium\Reflect\ReflectService.exe
O23 - Service: SolidConverterPDFv4ReadSpool (SCPDFV4ReadSpool) - Solid Documents, LLC - C:\WINDOWS\Installer\MSI552.tmp
O23 - Service: vToolbarUpdater12.2.6 - Unknown owner - C:\Programmi\File comuni\AVG Secure Search\vToolbarUpdater\12.2.6\ToolbarUpdater.exe
O23 - Service: Windows Presentation Foundation Font Cache 4.0.0.0 (WPFFontCache_v0400) - Unknown owner - C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\WPF\WPFFontCache_v0400.exe (file missing)

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End of file - 8790 bytes

Molto, ma molto meglio, grazie.
L'unica cosa rimasta è che l'avviso alla connessione alla rete locale (i due monitorini in basso a destra) compaiono in netto ritardo anche se posso connettermo ugualmente.
Ancoras gra, Giovanni.