Mi sono beccato questo intruso e non so come eliminarlo.
Ho eseguito Adwcleaner e sto scansionando con MBAM.
Ho provato ad eseguire una ricerca nel forum ma come sempre mi da errore e nessun risultato.

Ciao ciocca, si tratta di uno dei tanti dirottatori, prima cosa vai in installazione applicazioni e cerca la voce
Web Search o My Web Search e se c'è rimuovila, poi vai nel Task manager e cerca fra i processi se trovi la voce e clic su termina processo, controlla nei componenti aggiuntivi se c'è qualche estensione o plugin e rimuovili, alle volte viene modificata anche la pagina del browser.
Poi posta il log di HJT che controlliamo.

Ciao. Chiudendo Installazione Applicazioni ho dato Si per la rimozione della voce è stata rimossa.
Però il malefico rimane.

Ecco HjT. Ho visto che assai più semplice copiare ed incollare.

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 11.37.27, on 24/05/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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:\Programmi\Microsoft Security Client\MsMpEng.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\VIA\VIAudioi\HDADeck\HDeck.exe
C:\Programmi\COMODO\COMODO Internet Security\cfp.exe
C:\Programmi\Microsoft Security Client\msseces.exe
C:\Programmi\ABBYY FineReader 11\NetworkLicenseServer.exe
C:\WINDOWS\CBTWlanSrv.exe
C:\WINDOWS\system32\E_S00RP1.EXE
C:\Programmi\Java\jre7\bin\jqs.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\Macrium\Reflect\ReflectService.exe
C:\Programmi\CyberLink\Shared Files\RichVideo.exe
C:\WINDOWS\system32\SAgent4.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Programmi\TeamViewer\Version7\TeamViewer_Service.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.b1.org/?bsrc=4hixr&chid=c162341
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://websearch.lookforithere.info/?pid=512&r=2013/05/18&hid=4116469151&lg=EN&cc=IT&unqvl=14
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 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://websearch.lookforithere.info/?pid=512&r=2013/05/18&hid=4116469151&lg=EN&cc=IT&unqvl=14
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - Default URLSearchHook is missing
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Documents and Settings\All Users\Dati applicazioni\Real\RealPlayer\BrowserRecordPlugin\IE\rpbrowserrecordplugin.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre7\bin\ssv.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\5.2.4204.1700\swg.dll
O2 - BHO: Free Download Manager - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Programmi\Free Download Manager\iefdm2.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre7\bin\jp2ssv.dll
O4 - HKLM\..\Run: [HDAudDeck] C:\Programmi\VIA\VIAudioi\HDADeck\HDeck.exe 1
O4 - HKLM\..\Run: [COMODO Internet Security] "C:\Programmi\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKLM\..\Run: [MSC] "C:\Programmi\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-21-842925246-583907252-839522115-1003\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'UpdatusUser')
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: Scarica con Download &Express - C:\Programmi\Download Express\Add_Url.htm
O8 - Extra context menu item: Scarica con Free Download Manager - file://C:\Programmi\Free Download Manager\dllink.htm
O8 - Extra context menu item: Scarica i video con Free Download Manager - file://C:\Programmi\Free Download Manager\dlfvideo.htm
O8 - Extra context menu item: Scarica selezionati con Free Download Manager - file://C:\Programmi\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Scarica tutto con Free Download Manager - file://C:\Programmi\Free Download Manager\dlall.htm
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
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe (file missing)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe (file missing)
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1361995897859
O17 - HKLM\System\CCS\Services\Tcpip\..\{4E0FC2DF-FAED-4930-93B3-265CB3F5658E}: NameServer = 195.241.77.53,198.153.192.1
O17 - HKLM\System\CCS\Services\Tcpip\..\{879A79AE-662B-4337-8691-B9C556AEC944}: NameServer = 195.241.77.53,198.153.192.1
O17 - HKLM\System\CCS\Services\Tcpip\..\{9E279D9E-43F9-437A-9562-6CB02800A7C5}: NameServer = 195.241.77.53,198.153.192.1
O20 - AppInit_DLLs: c:\windows\system32\guard32.dll c:\progra~1\contin~1\sprote~1.dll c:\progra~1\websea~1\sprote~1.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: ABBYY FineReader 11 PE Licensing Service (ABBYY.Licensing.FineReader.Professional.11.0) - ABBYY - C:\Programmi\ABBYY FineReader 11\NetworkLicenseServer.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: CBT Wlan Service (CBTWlanSrv) - Unknown owner - C:\WINDOWS\CBTWlanSrv.exe
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - COMODO - C:\Programmi\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: DraftSight API Service - Dassault Systèmes - C:\Programmi\Dassault Systemes\DraftSight\bin\dsHttpApiService.exe
O23 - Service: EPSON V3 Service2(03) (EPSON_PM_RPCV2_01) - SEIKO EPSON CORPORATION - C:\WINDOWS\system32\E_S00RP1.EXE
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Servizio Google Update (gupdate) (gupdate) - 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) - Oracle Corporation - C:\Programmi\Java\jre7\bin\jqs.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: NVIDIA Update Service Daemon (nvUpdatusService) - NVIDIA Corporation - C:\Programmi\NVIDIA Corporation\NVIDIA Updatus\daemonu.exe
O23 - Service: Macrium Reflect Image Mounting Service (ReflectService.exe) - Unknown owner - C:\Programmi\Macrium\Reflect\ReflectService.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programmi\CyberLink\Shared Files\RichVideo.exe
O23 - Service: Epson Printer Status Agent4 (StatusAgent4) - SEIKO EPSON CORPORATION - C:\WINDOWS\system32\SAgent4.exe
O23 - Service: TeamViewer 7 (TeamViewer7) - TeamViewer GmbH - C:\Programmi\TeamViewer\Version7\TeamViewer_Service.exe
O23 - Service: Yontoo Desktop Updater - Unknown owner - C:\Programmi\Yontoo\Y2Desktop.Updater.exe (file missing)

--
End of file - 9545 bytes


Noto anche la presenza di Yantoo desktop Up. (file missing = scomparso = inesistente?)
Però non c'è ne nella cartella Programmi di C tantomeno appare nella lista di Disinstallazione Applicazioni ne in quella di Disinstallazione di CCleaner

Ciao Busto.
Ho fatto tutto ma Searc rimane: cioè aprendo una nuova scheda di Chrome riappare il motore di ricerca Search e non Google.it come è nelle impostazioni. Ti dirò di più: Search non compare nemmeno in "Gestisci motori di ricerca". Vi è solo Google naturalmente predefinito,
Searc compare solo aprendo una nuova scheda mentre la pagina iniziale di accesso ad Internet è regolarmente Google.it.

Forse una reinstallazione di google potrebbe risolvere la cosa?

Comunque questo è il log di HJT dopo le operazioni:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 18.48.38, on 24/05/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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:\Programmi\Microsoft Security Client\MsMpEng.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\VIA\VIAudioi\HDADeck\HDeck.exe
C:\Programmi\COMODO\COMODO Internet Security\cfp.exe
C:\Programmi\Microsoft Security Client\msseces.exe
C:\Programmi\ABBYY FineReader 11\NetworkLicenseServer.exe
C:\WINDOWS\CBTWlanSrv.exe
C:\WINDOWS\system32\E_S00RP1.EXE
C:\Programmi\Java\jre7\bin\jqs.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\Macrium\Reflect\ReflectService.exe
C:\Programmi\CyberLink\Shared Files\RichVideo.exe
C:\WINDOWS\system32\SAgent4.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\TeamViewer\Version7\TeamViewer_Service.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

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\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Documents and Settings\All Users\Dati applicazioni\Real\RealPlayer\BrowserRecordPlugin\IE\rpbrowserrecordplugin.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre7\bin\ssv.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\5.2.4204.1700\swg.dll
O2 - BHO: Free Download Manager - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Programmi\Free Download Manager\iefdm2.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre7\bin\jp2ssv.dll
O4 - HKLM\..\Run: [HDAudDeck] C:\Programmi\VIA\VIAudioi\HDADeck\HDeck.exe 1
O4 - HKLM\..\Run: [COMODO Internet Security] "C:\Programmi\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKLM\..\Run: [MSC] "C:\Programmi\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-21-842925246-583907252-839522115-1003\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'UpdatusUser')
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: Scarica con Download &Express - C:\Programmi\Download Express\Add_Url.htm
O8 - Extra context menu item: Scarica con Free Download Manager - file://C:\Programmi\Free Download Manager\dllink.htm
O8 - Extra context menu item: Scarica i video con Free Download Manager - file://C:\Programmi\Free Download Manager\dlfvideo.htm
O8 - Extra context menu item: Scarica selezionati con Free Download Manager - file://C:\Programmi\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Scarica tutto con Free Download Manager - file://C:\Programmi\Free Download Manager\dlall.htm
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://www.update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1361995897859
O17 - HKLM\System\CCS\Services\Tcpip\..\{3DB7ED76-DB76-409E-9E43-916821C6D938}: NameServer = 8.8.8.8,8.8.4.4
O20 - AppInit_DLLs: c:\windows\system32\guard32.dll c:\progra~1\contin~1\sprote~1.dll c:\progra~1\websea~1\sprote~1.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: ABBYY FineReader 11 PE Licensing Service (ABBYY.Licensing.FineReader.Professional.11.0) - ABBYY - C:\Programmi\ABBYY FineReader 11\NetworkLicenseServer.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: CBT Wlan Service (CBTWlanSrv) - Unknown owner - C:\WINDOWS\CBTWlanSrv.exe
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - COMODO - C:\Programmi\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: DraftSight API Service - Dassault Systèmes - C:\Programmi\Dassault Systemes\DraftSight\bin\dsHttpApiService.exe
O23 - Service: EPSON V3 Service2(03) (EPSON_PM_RPCV2_01) - SEIKO EPSON CORPORATION - C:\WINDOWS\system32\E_S00RP1.EXE
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Servizio Google Update (gupdate) (gupdate) - 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) - Oracle Corporation - C:\Programmi\Java\jre7\bin\jqs.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: NVIDIA Update Service Daemon (nvUpdatusService) - NVIDIA Corporation - C:\Programmi\NVIDIA Corporation\NVIDIA Updatus\daemonu.exe
O23 - Service: Macrium Reflect Image Mounting Service (ReflectService.exe) - Unknown owner - C:\Programmi\Macrium\Reflect\ReflectService.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programmi\CyberLink\Shared Files\RichVideo.exe
O23 - Service: Epson Printer Status Agent4 (StatusAgent4) - SEIKO EPSON CORPORATION - C:\WINDOWS\system32\SAgent4.exe
O23 - Service: TeamViewer 7 (TeamViewer7) - TeamViewer GmbH - C:\Programmi\TeamViewer\Version7\TeamViewer_Service.exe

--
End of file - 8673 bytes

Il log è a posto, riguardo a Chrome ho notato che c'erano troppe voci del browser, comunque visto che hai risolto tanto meglio. Ciao

Conosco le tue preferenze ma io mi trovo bene. Firefox lo ho sempre apprezzato poco anche quando usavo I.E.
Sia I.E. che FFX sono installati in tutti i miei computer ma li uso poco. E' una questione di feeling.
Reinstallazione già eseguita come puoi leggere sopra.
Ciao Alberto.

http://www.tgsoft.it/italy/last_malware.asp?id=12158



Nota il particolare in rosso della chiave di Ciocca:

Si riferisce a proprio a Web Search

fatto