Ho seguito in parte le indicazioni di Fax71ita (che ringrazio).
1) fatta scansione con malwarebytes ed eliminato quello che ha trovato;
2) eseguita scansione con adwcleane ed eliminato tutto.
A questo punto visto che il problema non si è più ripresentato mi sono fermato qui.
Allego comunque il log di HijackThis e ringrazio per l'interessamento.
Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 07:35:37, on 15/04/2015
Platform: Unknown Windows (WinNT 6.02.1008)
MSIE: Internet Explorer v11.0 (11.00.9600.17416)
FIREFOX: 37.0.1 (x86 it)
Boot mode: Normal
Running processes:
C:\Program Files (x86)\ATI Technologies\HydraVision\HydraDM.exe
C:\Program Files (x86)\CyberLink\PowerDVD10\PDVD10Serv.exe
C:\Program Files (x86)\Adobe\Acrobat 9.0\Acrobat\acrotray.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\Mozilla Thunderbird\thunderbird.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jucheck.exe
C:\Users\Utente\Desktop\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
www.google.comR1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
www.google.comR1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
www.google.comR0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://news.google.it/R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
www.google.comR1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
www.google.comR1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
www.google.comR0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
www.google.comR0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe,
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.8.0_40\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre1.8.0_40\bin\jp2ssv.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [WebStorage] C:\Program Files (x86)\ASUS\WebStorage\2.0.3.226\ASUSWSLoader.exe
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\amd64\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [RemoteControl10] "C:\Program Files (x86)\CyberLink\PowerDVD10\PDVD10Serv.exe"
O4 - HKLM\..\Run: [KeePass 2 PreLoad] "C:\Program Files (x86)\KeePass Password Safe 2\KeePass.exe" --preload
O4 - HKLM\..\Run: [Adobe Acrobat Speed Launcher] "C:\Program Files (x86)\Adobe\Acrobat 9.0\Acrobat\Acrobat_sl.exe"
O4 - HKLM\..\Run: [Acrobat Assistant 8.0] "C:\Program Files (x86)\Adobe\Acrobat 9.0\Acrobat\Acrotray.exe"
O4 - HKLM\..\Run: [bit4id store register] RUNDLL32.EXE "C:\WINDOWS\system32\bit4cnsp.dll",RegisterMyPhysicalStore
O4 - HKLM\..\Run: [SSLEmptyCache] C:\WINDOWS\system32\SSLEmptyCache.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [HydraVisionDesktopManager] "C:\Program Files (x86)\ATI Technologies\HydraVision\HydraDM.exe"
O4 - HKCU\..\Run: [EPSON Stylus DX5000 Series] C:\WINDOWS\system32\spool\DRIVERS\x64\3\E_IATIBVE.EXE /FU "C:\Users\Utente\AppData\Local\Temp\E_SEC45.tmp" /EF "HKCU"
O4 - HKCU\..\Run: [GUDelayStartup] "C:\Program Files (x86)\Glary Utilities 5\StartupManager.exe" -delayrun
O8 - Extra context menu item: Aggiungi a PDF esistente - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Aggiungi destinazione link a PDF esistente - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Converti destinazione link in Adobe PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Converti in Adobe PDF - res://C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~2\MICROS~1\Office12\EXCEL.EXE/3000
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~1\Office12\ONBttnIE.dll
O9 - Extra button: Skype Click to Call settings - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~1\Office12\REFIEBAR.DLL
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O17 - HKLM\System\CCS\Services\Tcpip\..\{BB7B3181-CC20-40D9-AE31-2492A17CB806}: NameServer = 81.88.224.129,81.88.224.130
O18 - Protocol: skypec2c - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files (x86)\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\WINDOWS\System32\alg.exe (file missing)
O23 - Service: AMD External Events Utility - Unknown owner - C:\WINDOWS\system32\atiesrxx.exe (file missing)
O23 - Service: AMD FUEL Service - Advanced Micro Devices, Inc. - C:\Program Files\ATI Technologies\ATI.ACE\Fuel\Fuel.Service.exe
O23 - Service: ASUS Com Service (asComSvc) - Unknown owner - C:\Program Files (x86)\ASUS\AXSP\1.00.19\atkexComSvc.exe
O23 - Service: Asus WebStorage Windows Service - ASUS Cloud Corporation - C:\Program Files (x86)\ASUS\WebStorage\2.0.3.226\AsusWSWinService.exe
O23 - Service: Device Handle Service - Unknown owner - C:\Windows\SysWOW64\AsHookDevice.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: FABS - Helping agent for MAGIX media database (Fabs) - MAGIX AG - C:\Program Files (x86)\Common Files\MAGIX Services\Database\bin\FABS.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\WINDOWS\system32\fxssvc.exe (file missing)
O23 - Service: Firebird Server - MAGIX Instance (FirebirdServerMAGIXInstance) - MAGIX® - C:\Program Files (x86)\Common Files\MAGIX Services\Database\bin\fbserver.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files (x86)\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Servizio Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\WINDOWS\system32\IEEtwCollector.exe (file missing)
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: LiveUpdate (LiveUpdateSvc) - IObit - C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
O23 - Service: McAfee Firewall Core Service (mfefire) - McAfee, Inc. - C:\Program Files\Common Files\McAfee\SystemCore\\mfefire.exe
O23 - Service: McAfee Validation Trust Protection Service (mfevtp) - Unknown owner - C:\Windows\system32\mfevtps.exe (file missing)
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\WINDOWS\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Cyberlink RichVideo64 Service(CRVS) (RichVideo64) - Unknown owner - C:\Program Files\CyberLink\Shared files\RichVideo64.exe
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\WINDOWS\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files (x86)\Skype\Updater\Updater.exe
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\WINDOWS\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\WINDOWS\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\WINDOWS\system32\sppsvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\WINDOWS\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\WINDOWS\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\WINDOWS\system32\vssvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\WINDOWS\system32\wbengine.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender\MpAsDesc.dll,-320 (WdNisSvc) - Unknown owner - C:\Program Files (x86)\Windows Defender\NisSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender\MpAsDesc.dll,-310 (WinDefend) - Unknown owner - C:\Program Files (x86)\Windows Defender\MsMpEng.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\WINDOWS\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)
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End of file - 11159 bytes