Ho reinstallato da una decina di giorni Flash Player... sapendo che mi avrebbe rallentato il PC... in compenso ora non si blocca.
Ho soltanto un piccolo problema che il clic del mouse non è reattivo, devo cliccare una seconda e terza volta... ma non sempre.
Mi controllate il log di Hijackthis?
Allego anche quello di Adwcleaner...
Grazie fin da ora!

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 8.54.35, on 06/04/2013
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:\WINDOWS\System32\svchost.exe
C:\Programmi\AVAST Software\Avast\AvastSvc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\AVAST Software\Avast\avastUI.exe
C:\Programmi\File comuni\Java\Java Update\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Alice ti aiuta\bin\mpbtn.exe
C:\Programmi\Java\jre7\bin\jqs.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
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: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Programmi\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre7\bin\ssv.dll
O2 - BHO: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Programmi\AVAST Software\Avast\aswWebRepIE.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre7\bin\jp2ssv.dll
O3 - Toolbar: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Programmi\AVAST Software\Avast\aswWebRepIE.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [avast] "C:\Programmi\AVAST Software\Avast\avastUI.exe" /nogui
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
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-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Global Startup: Alice ti aiuta.lnk = C:\Programmi\Alice ti aiuta\bin\matcli.exe
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.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
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{73B0F7D9-2017-4350-A18A-37961673CA19}: NameServer = 85.37.17.47 85.38.28.82
O17 - HKLM\System\CS1\Services\Tcpip\..\{73B0F7D9-2017-4350-A18A-37961673CA19}: NameServer = 85.37.17.47 85.38.28.82
O17 - HKLM\System\CS3\Services\Tcpip\..\{73B0F7D9-2017-4350-A18A-37961673CA19}: NameServer = 85.37.17.47 85.38.28.82
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Programmi\Microsoft Office\Office12\GrooveSystemServices.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: avast! Antivirus - AVAST Software - C:\Programmi\AVAST Software\Avast\AvastSvc.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Oracle Corporation - C:\Programmi\Java\jre7\bin\jqs.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

--
End of file - 5686 bytes





# AdwCleaner v2.109 - Logfile creato il 06/04/2013 alle 09:03:00
# Aggiornamento 26/01/2013 by Xplode
# Sistema Operativo : Microsoft Windows XP Service Pack 3 (32 bits)
# Utente : Administrator - COMPUTER
# Modalità Avvio : Modalità Normale
# Eseguito da : C:\Documents and Settings\Administrator\Documenti\Download\adwcleaner.exe
# Opzioni [Elimina]


***** [Servizi] *****


***** [File / Cartelle] *****


***** [Registro] *****


***** [Browser Internet] *****

-\\ Internet Explorer v8.0.6001.18702

[OK] Registro Pulito.

-\\ Mozilla Firefox v19.0.2 (it)

File : C:\Documents and Settings\Administrator\Dati applicazioni\Mozilla\Firefox\Profiles\uq31bikp.default\prefs.js

C:\Documents and Settings\Administrator\Dati applicazioni\Mozilla\Firefox\Profiles\uq31bikp.default\user.js ... Eliminato !

Eliminata : user_pref("extensions.BabylonToolbar.admin", false);
Eliminata : user_pref("extensions.BabylonToolbar.aflt", "babsst");
Eliminata : user_pref("extensions.BabylonToolbar.appId", "{BDB69379-802F-4eaf-B541-F8DE92DD98DB}");
Eliminata : user_pref("extensions.BabylonToolbar.dfltLng", "en");
Eliminata : user_pref("extensions.BabylonToolbar.excTlbr", false);
Eliminata : user_pref("extensions.BabylonToolbar.id", "308370f60000000000000017c255c1f6");
Eliminata : user_pref("extensions.BabylonToolbar.instlDay", "15669");
Eliminata : user_pref("extensions.BabylonToolbar.instlRef", "sst");
Eliminata : user_pref("extensions.BabylonToolbar.prdct", "BabylonToolbar");
Eliminata : user_pref("extensions.BabylonToolbar.prtnrId", "babylon");
Eliminata : user_pref("extensions.BabylonToolbar.tlbrId", "irhnew");
Eliminata : user_pref("extensions.BabylonToolbar.tlbrSrchUrl", "hxxp://search.babylon.com/?babsrc=TB_def&mntrId=[...]
Eliminata : user_pref("extensions.BabylonToolbar.vrsn", "1.8.3.8");
Eliminata : user_pref("extensions.BabylonToolbar.vrsni", "1.8.3.8");
Eliminata : user_pref("extensions.BabylonToolbar_i.smplGrp", "none");
Eliminata : user_pref("extensions.BabylonToolbar_i.vrsnTs", "1.8.3.817:20:51");

-\\ Google Chrome v [Impossibile rilevare la versione]

File : C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\User Data\Default\Preferences

[OK] File Pulito.

*************************

AdwCleaner[S1].txt - [2441 octets] - [26/01/2013 15:59:52]
AdwCleaner[S2].txt - [388 octets] - [06/04/2013 08:59:38]
AdwCleaner[S3].txt - [2427 octets] - [06/04/2013 09:03:00]

########## EOF - C:\AdwCleaner[S3].txt - [2487 octets] ##########

Tutto a posto, il problema del mouse non dipende da infezioni, vai nel pannello di controllo e vedi le impostazioni del mouse, prova anche in Sistema>Hardware>Gestione periferiche, clic col destro sulla voce mouse> Proprietà controlla che i driver siano aggiornati e poi vedi se c'è qualche punto ? giallo.