Buongiorno amici,
quando apro un browser la pagina iniziale è sostituita da "trustedsurf" o altri siti spazzatura.
ho fatto una scansione con malwarebytes, e una con spybot (quest'ulima in modalità provvisoria) ed ho risolto molti problemi.
fatto una nuova scansione con spybot e tutto sembra a posto.
il problema persiste quindi ho fatto girare hijackthis. potete darmi una mano ad interpretare il log ed a risolvere il problema?

Grazie mille!

paru


=============================================================================

Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 21:38:33, on 12/05/2016
Platform: Unknown Windows (WinNT 6.02.1008)
MSIE: Internet Explorer v11.0 (11.00.10586.0020)

FIREFOX: 38.0.1 (x86 en-US)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Kaspersky Lab\Kaspersky Internet Security 16.0.0\avpui.exe
C:\Program Files (x86)\Spybot - Search & Destroy 2\SDTray.exe
C:\Program Files (x86)\Acer\abDocs\abDocsDllLoaderMonitor.exe
C:\Program Files (x86)\Acer\AOP Framework\BackgroundAgent.exe
C:\Program Files\AVAST Software\SecureLine\SecureLine.exe
C:\Program Files (x86)\Acer\Acer Portal\AcerPortal.exe
C:\Program Files (x86)\Skype\Phone\Skype.exe
C:\Users\Eleonora\AppData\Roaming\Spotify\SpotifyWebHelper.exe
C:\Users\Eleonora\AppData\Roaming\Spotify\Spotify.exe
C:\Users\Eleonora\AppData\Roaming\Spotify\SpotifyCrashService.exe
C:\Users\Eleonora\AppData\Roaming\Spotify\Spotify.exe
C:\Users\Eleonora\AppData\Roaming\Spotify\Spotify.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Users\Eleonora\Downloads\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/p/?LinkId=255141
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://go.microsoft.com/fwlink/p/?LinkId=255141
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/p/?LinkId=255141
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/p/?LinkId=255141
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = %11%\blank.htm
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: ScriptInjectionPluginBrowserHelperObject - {C66D064F-82FE-4E1A-B06A-B2490BA48B18} - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Internet Security 16.0.0\IEExt\ie_plugin.dll
O3 - Toolbar: Kaspersky Protection toolbar - {3507FA00-ADA2-4A02-99B9-51AD26CA9120} - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Internet Security 16.0.0\IEExt\ie_plugin.dll
O4 - HKLM\..\Run: [abDocsDllLoader] C:\Program Files (x86)\Acer\abDocs\abDocsDllLoader.exe
O4 - HKLM\..\Run: [SDTray] "C:\Program Files (x86)\Spybot - Search & Destroy 2\SDTray.exe"
O4 - HKCU\..\Run: [OneDrive] "C:\Users\Eleonora\AppData\Local\Microsoft\OneDrive\OneDrive.exe" /background
O4 - HKCU\..\Run: [CCleaner Monitoring] "C:\Program Files\CCleaner\CCleaner64.exe" /MONITOR
O4 - HKCU\..\Run: [SpybotPostWindows10UpgradeReInstall] "C:\Program Files\Common Files\AV\Spybot - Search and Destroy\Test.exe"
O4 - HKCU\..\RunOnce: [Uninstall C:\Users\Eleonora\AppData\Local\Microsoft\OneDrive\17.3.6281.1202_1\amd64] C:\WINDOWS\system32\cmd.exe /q /c rmdir /s /q "C:\Users\Eleonora\AppData\Local\Microsoft\OneDrive\17.3.6281.1202_1\amd64"
O4 - HKUS\S-1-5-19\..\Run: [OneDriveSetup] C:\Windows\SysWOW64\OneDriveSetup.exe /thfirstsetup (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [OneDriveSetup] C:\Windows\SysWOW64\OneDriveSetup.exe /thfirstsetup (User 'SERVIZIO DI RETE')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\Program Files (x86)\Microsoft Office\Root\Office16\EXCEL.EXE/3000
O8 - Extra context menu item: Se&nd to OneNote - res://C:\Program Files (x86)\Microsoft Office\Root\Office16\ONBttnIE.dll/105
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files (x86)\Microsoft Office\root\Office16\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: Se&nd to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files (x86)\Microsoft Office\root\Office16\ONBttnIE.dll
O9 - Extra button: OneNote Lin&ked Notes - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files (x86)\Microsoft Office\root\Office16\ONBttnIELinkedNotes.dll
O9 - Extra 'Tools' menuitem: OneNote Lin&ked Notes - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files (x86)\Microsoft Office\root\Office16\ONBttnIELinkedNotes.dll
O9 - Extra button: Skype Click to Call settings - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O15 - Trusted Zone: *.amazon.it
O18 - Protocol: mso-minsb-roaming.16 - {83C25742-A9F7-49FB-9138-434302C88D07} - C:\Program Files (x86)\Microsoft Office\root\Office16\MSOSB.DLL
O18 - Protocol: mso-minsb.16 - {42089D2D-912D-4018-9087-2B87803E93FB} - C:\Program Files (x86)\Microsoft Office\root\Office16\MSOSB.DLL
O18 - Protocol: osf-roaming.16 - {42089D2D-912D-4018-9087-2B87803E93FB} - C:\Program Files (x86)\Microsoft Office\root\Office16\MSOSB.DLL
O18 - Protocol: osf.16 - {5504BE45-A83B-4808-900A-3A5C36E7F77A} - C:\Program Files (x86)\Microsoft Office\root\Office16\MSOSB.DLL
O18 - Protocol: skypec2c - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O18 - Protocol: tbauth - {14654CA6-5711-491D-B89A-58E571679951} - C:\Windows\SysWOW64\tbauth.dll
O18 - Protocol: windows.tbauth - {14654CA6-5711-491D-B89A-58E571679951} - C:\Windows\SysWOW64\tbauth.dll
O20 - Winlogon Notify: SDWinLogon - SDWinLogon.dll (file missing)
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\WINDOWS\System32\alg.exe (file missing)
O23 - Service: Amazon 1Button App Service - Unknown owner - c:\Program Files (x86)\Amazon\Amazon1ButtonApp\Amazon1ButtonService64.Exe (file missing)
O23 - Service: AtherosSvc - Windows (R) Win 7 DDK provider - C:\Program Files (x86)\Qualcomm Atheros\Bluetooth Suite\adminservice.exe
O23 - Service: Servizio Kaspersky Anti-Virus 16.0.0 (AVP16.0.0) - Kaspersky Lab ZAO - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Internet Security 16.0.0\avp.exe
O23 - Service: CCDMonitorService - Acer Incorporated - C:\Program Files (x86)\Acer\AOP Framework\CCDMonitorService.exe
O23 - Service: Intel(R) Content Protection HECI Service (cphs) - Intel Corporation - C:\WINDOWS\SysWow64\IntelCpHeciSvc.exe
O23 - Service: @%SystemRoot%\system32\DiagSvcs\DiagnosticsHub.StandardCollector.ServiceRes.dll,-1000 (diagnosticshub.standardcollector.service) - Unknown owner - C:\WINDOWS\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe (file missing)
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: ePower Service (ePowerSvc) - Acer Incorporated - C:\Program Files\Acer\Acer Power Management\ePowerSvc.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\WINDOWS\system32\fxssvc.exe (file missing)
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: Intel Bluetooth Service (ibtsiva) - Intel Corporation - C:\Program Files (x86)\Intel\Bluetooth\utilities\ibtsiva.exe
O23 - Service: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\WINDOWS\system32\IEEtwCollector.exe (file missing)
O23 - Service: Intel(R) HD Graphics Control Panel Service (igfxCUIService2.0.0.0) - Unknown owner - C:\WINDOWS\system32\igfxCUIService.exe (file missing)
O23 - Service: Intel(R) Capability Licensing Service TCP IP Interface - Intel(R) Corporation - C:\Program Files\Intel\iCLS Client\SocketHeciServer.exe
O23 - Service: Intel(R) Security Assist - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Security Assist\isa.exe
O23 - Service: Intel(R) Security Assist Helper (isaHelperSvc) - Unknown owner - C:\Program Files (x86)\Intel\Intel(R) Security Assist\isaHelperService.exe
O23 - Service: Intel(R) Dynamic Application Loader Host Interface Service (jhi_service) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL\jhi_service.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Intel(R) Management and Security Application Local Management Service (LMS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\LMS\LMS.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: Quick Access Local Service (QALSvc) - Acer Incorporated - C:\Program Files\Acer\Acer Quick Access\QALSvc.exe
O23 - Service: Quick Access Service (QASvc) - Acer Incorporated - C:\Program Files\Acer\Acer Quick Access\QASvc.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: Spybot-S&D 2 Scanner Service (SDScannerService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDFSSvc.exe
O23 - Service: Spybot-S&D 2 Updating Service (SDUpdateService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDUpdSvc.exe
O23 - Service: Spybot-S&D 2 Security Center Service (SDWSCService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDWSCSvc.exe
O23 - Service: Avast SecureLine (SecureLine) - Unknown owner - C:\Program Files\AVAST Software\SecureLine\VpnSvc.exe
O23 - Service: @%SystemRoot%\system32\SensorDataService.exe,-101 (SensorDataService) - Unknown owner - C:\WINDOWS\System32\SensorDataService.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\TieringEngineService.exe,-702 (TieringEngineService) - Unknown owner - C:\WINDOWS\system32\TieringEngineService.exe (file missing)
O23 - Service: User Experience Improvement Program (UEIPSvc) - acer - C:\Program Files\Acer\User Experience Improvement Program\Framework\UBTService.exe
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: vssbrigde64 - AO Kaspersky Lab - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Internet Security 16.0.0\x64\vssbridge64.exe
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)

--
End of file - 13350 bytes

Trustedsurf.com è un ennesimo browser hijacker che può cambiare le impostazioni del browser e ti dirotta verso altri siti.
Dal log non si vede niente, fai queste altre scansioni che per questi problemi risolvono spesso:

Scarica Adwcleaner sul desktop: http://www.bleepingcomputer.com/download/adwcleaner/
Per il download cliccare su: Download now
Chiudi tutti i browser (è importante IE,Firefox Chrome ecc...)
Clicca sul pulsante "Analisi".
Finita la scansione clicca su "Pulizia"
Conferma con OK le varie finestre che ti compariranno.
Il pc si riavvierà, e uscirà il log con le eliminazioni.
Postalo qui.
ADW crea un backup dei files e delle impostazioni eliminati, si trova in "C:\AdwCleaner\Quarantine" in modo da consentire l'eventuale ripristino di dati erroneamente cancellati.
Per il ripristino, aprire il programma>Strumenti>Gestione quarantena>Ripristino.

Scarica Junkware Removal Tool sul desktop.
http://junkware-removal-tool.it.uptodown.com/download
Il download dovrebbe partire entro 5 secondi
Disattiva temporaneamente l'antivirus per evitare potenziali conflitti.
Doppio click su JRT
Lo strumento si aprirà e avvierà la scansione del sistema.
Devi avere pazienza in quanto questo tool può richiedere del tempo per completare la scansione .
Al termine, un log (JRT.txt) viene salvato sul desktop e si aprirà automaticamente.
Postalo qui.
Fai un ripristino dei browser che usi, controlla fra i componenti aggiuntivi se ci sono voci sconosciute e le rimuovi, controlla anche fra i vari motori di ricerca se ne vedi di sconossiuti li ri muovi, io lascio solo Gogle. Ciao

Tutto ok, se hai controllato i browser e i motori di ricerca direi che sei a posto. Ciao