Impossibilità a fare qualunque download e casini vari...

[sfera]

Onorevoli Colleghi Forumisti, :-)


Portatile con Windows Seven, mai avuto problemi.
Ieri prima si rallenta la navigazione, poi si blocca del tutto.
Mi compaiono messaggi di errore di Flash Player.
Scansiono con Avast, con Malwarebyte, con AntiSpyware, pulisco con CCleaner, pare tutto a posto e non si evidenziano virus o trojan.
Allora disinstallo sia Flash Player che il browser Firefox, con l'intento di aggiornarli riscaricando le nuove versioni.
Ma il computer, usando Explorer l'unico altro browser che ho, mi impedisce qualunque download, anche dello stesso Explorer, con vari messaggi di errore.
Mi impedisce anche di accedere a Facebook, nel senso che compare il messaggio di impossibilità a collegarsi, oppure se mi fa entrare non mi visualizza poi i messaggi e le notifiche. Probabilmente a causa della mancanza di flash player, penso...
Lancio Hijack This e compare questo avviso:

For some reason your system denied write access to Hosts file. If any hijacked domains are in this file, Hijack This may NOT be able to fixx this. Eccetera....


(segue al prossimo post)

[sfera]

Questo è il log di HiJackThis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 01:23:51, on 31/12/2013
Platform: Unknown Windows (WinNT 6.01.3505 SP1)
MSIE: Internet Explorer v9.00 (9.00.8112.16490)
Boot mode: Normal
Running processes:
C:\Program Files (x86)\NortonInstaller\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NIS\A5E82D02\17.0.0.136\InstStub.exe
C:\Program Files (x86)\Common Files\LightScribe\LightScribeControlPanel.exe
C:\Program Files (x86)\Hewlett-Packard\HP Advisor\HPAdvisor.exe
C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch Buttons\QLBCtrl.exe
C:\Program Files (x86)\Hp\HP Software Update\hpwuschd2.exe
C:\Program Files (x86)\Alice ti aiuta\McciTrayApp.exe
C:\Program Files (x86)\Common Files\Nikon\Monitor\NkMonitor.exe
C:\Program Files (x86)\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Alwil Software\Avast5\AvastUI.exe
C:\Program Files (x86)\Hewlett-Packard\Shared\hpqToaster.exe
C:\Windows\SysWow64\Macromed\Flash\FlashUtil10c.ex e
C:\Program Files (x86)\Trend Micro\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://g.uk.msn.com/HPCON/6
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://g.uk.msn.com/HPCON/6
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://g.uk.msn.com/HPCON/6
R0 - 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: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Zonealarm Helper Object - {2A841F7A-A014-4DA5-B6D9-8B913DFB7A8C} - C:\Program Files (x86)\Check Point Software Technologies LTD\zonealarm\1.8.3.16\bh\zonealarm.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Symantec NCO BHO - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - C:\Program Files (x86)\Norton Internet Security\Engine\17.0.0.136\coIEPlg.dll
O2 - BHO: Symantec Intrusion Prevention - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Program Files (x86)\Norton Internet Security\Engine\17.0.0.136\IPSBHO.DLL
O2 - BHO: ZoneAlarm Do Not Track - {6E45F3E8-2683-4824-A6BE-08108022FB36} - C:\Program Files (x86)\DoNotTrackPlus\IE\DNTPAddon.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre7\bin\ssv.dll
O2 - BHO: ZoneAlarm Toolbar Registrar - {8A4A36C2-0535-4D2C-BD3D-496CB7EED6E3} - C:\Program Files\CheckPoint\ZAForceField\WOW64\TrustChecker\b in\TrustCheckerIEPlugin.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre7\bin\jp2ssv.dll
O2 - BHO: HP Network Check Helper - {E76FD755-C1BA-4DCB-9F13-99BD91223ADE} - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckP lugin.dll
O3 - Toolbar: Norton Toolbar - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - C:\Program Files (x86)\Norton Internet Security\Engine\17.0.0.136\coIEPlg.dll
O3 - Toolbar: ZoneAlarm Toolbar - {EE2AC4E5-B0B0-4EC6-88A9-BCA1A32AB107} - C:\Program Files\CheckPoint\ZAForceField\WOW64\TrustChecker\b in\TrustCheckerIEPlugin.dll
O3 - Toolbar: ZoneAlarm Security Toolbar - {438FAE3E-BDEF-44D3-AB8B-0C7C8350DF59} - C:\Program Files (x86)\Check Point Software Technologies LTD\zonealarm\1.8.3.16\zonealarmTlbr.dll
O4 - HKLM\..\Run: [QlbCtrl.exe] C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch Buttons\QlbCtrl.exe /Start
O4 - HKLM\..\Run: [NortonOnlineBackupReminder] "C:\Program Files (x86)\Symantec\Norton Online Backup\Activation\NobuActivation.exe" UNATTENDED
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Easybits Recovery] C:\Program Files (x86)\EasyBits For Kids\ezRecover.exe
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files (x86)\Hp\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [WirelessAssistant] C:\Program Files (x86)\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
O4 - HKLM\..\Run: [AliceRV_McciTrayApp] C:\Program Files (x86)\Alice ti aiuta\McciTrayApp.exe
O4 - HKLM\..\Run: [avast5] "C:\Program Files\Alwil Software\Avast5\avastUI.exe" /nogui
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [Nikon Transfer Monitor] C:\Program Files (x86)\Common Files\Nikon\Monitor\NkMonitor.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files (x86)\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [AvastUI.exe] "C:\Program Files\Alwil Software\Avast5\AvastUI.exe" /nogui
O4 - HKLM\..\Run: [Magic Desktop for HP notification] "C:\ProgramData\Easybits Magic Desktop for HP\mdhpSUN.exe"
O4 - HKLM\..\RunOnce: [20131224] C:\Program Files\Alwil Software\Avast5\setup\emupdate\495af1cb-cc63-41dc-9cd6-d592d01f13c2.exe /check
O4 - HKLM\..\RunOnce: [Malwarebytes Anti-Malware] C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent
O4 - HKCU\..\Run: [LightScribe Control Panel] C:\Program Files (x86)\Common Files\LightScribe\LightScribeControlPanel.exe -hidden
O4 - HKCU\..\Run: [HPADVISOR] C:\Program Files (x86)\Hewlett-Packard\HP Advisor\HPAdvisor.exe view=DOCKVIEW
O4 - HKCU\..\Run: [SUPERAntiSpyware] C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.exe
O4 - HKCU\..\Run: [Facebook Update] "C:\Users\Alfredo\AppData\Local\Facebook\Update\Fa cebookUpdate.exe" /c /nocrashserver
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\RunOnce: [SPReview] "C:\Windows\System32\SPReview\SPReview.exe" /sp:1 /errorfwlink:"http://go.microsoft.com/fwlink/?LinkID=122915" /build:7601 (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\RunOnce: [SPReview] "C:\Windows\System32\SPReview\SPReview.exe" /sp:1 /errorfwlink:"http://go.microsoft.com/fwlink/?LinkID=122915" /build:7601 (User 'Default user')
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files (x86)\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~2\MICROS~4\Office12\EXCEL.EXE/3000
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: @C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckP lugin.dll,-103 - {25510184-5A38-4A99-B273-DCA8EEF6CD08} - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\NCLauncherFromI E.exe
O9 - Extra 'Tools' menuitem: @C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckP lugin.dll,-102 - {25510184-5A38-4A99-B273-DCA8EEF6CD08} - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\NCLauncherFromI E.exe
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~4\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~4\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~4\Office12\REFIEBAR.DLL

[sfera]

O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O13 - Gopher Prefix:
O23 - Service: SAS Core Service (!SASCORE) - SUPERAntiSpyware.com - C:\Program Files\SUPERAntiSpyware\SASCORE64.EXE
O23 - Service: Andrea ST Filters Service (AESTFilters) - Andrea Electronics Corporation - C:\Windows\System32\DriverStore\FileRepository\stw rt64.inf_amd64_neutral_b87ff64c8b56b7db\AESTSr64.e xe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: Com4QLBEx - Hewlett-Packard Development Company, L.P. - C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch Buttons\Com4QLBEx.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: GameConsoleService - WildTangent, Inc. - C:\Program Files (x86)\HP Games\HP Game Console\GameConsoleService.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: HP Support Assistant Service - Hewlett-Packard Company - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\hpsa_service.exe
O23 - Service: HP Software Framework Service (hpqwmiex) - Hewlett-Packard Company - C:\Program Files (x86)\Hewlett-Packard\Shared\hpqWmiEx.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files (x86)\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: ZoneAlarm Toolbar IswSvc (IswSvc) - Check Point Software Technologies - C:\Program Files\CheckPoint\ZAForceField\IswSvc.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files (x86)\Common Files\LightScribe\LSSrvc.exe
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: Norton Internet Security (NIS) - Symantec Corporation - C:\Program Files (x86)\Norton Internet Security\Engine\17.0.0.136\ccSvcHst.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files (x86)\CyberLink\Shared files\RichVideo.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: @%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: Audio Service (STacSV) - IDT, Inc. - C:\Windows\System32\DriverStore\FileRepository\stw rt64.inf_amd64_neutral_b87ff64c8b56b7db\STacSV64.e xe
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: TrueVector Internet Monitor (vsmon) - Check Point Software Technologies LTD - C:\Windows\SysWOW64\ZoneLabs\vsmon.exe
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.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)
--
End of file - 14130 bytes

Questo è quanto: attendo qualche anima buona di questo forum o mi taglio le vene? :-)
Grazie!!!

[sfera]

Solo per dire, se può essere utile a qualcuno, che ho risolto il problema semplicemente disinstallando Avast. Lo avevo aggiornato all'ultima edizione, ma -non so perchè- mi impediva qualunque download. Appena rimosso il problema non si è più ripresentato. Poi, mi pare negativo il fatto che Avast free edition non abbia un pulsante on/off, cioè la possibilità di disattivare il software senza doverlo per forza disinstallare. Grazie.

[SkinBonno]

giusto per informazione, avast (come gli altri av) ha la possibilità di essere disabilitato temporaneamente, basta cliccare con il destro sull'icona nella traybar --> controllo protezioni avast --> disabilita per X tempo

il tuo problema molto probabilmente era dovuto al web scanner (non so come si chiami nello specifico per avast), bastava disattivare tale protezione senza dover ricorrere alla disinstallazione del software.