a me sembra un po' moscio

Per quanto riguarda ip 192.168.43.1 non so a cosa corrisponde e come faccio a saperlo, ho solo notato che appena scollego la connessione internet del PC usando lo smartphone come modem e vado nel prompt dei comandi quell'indirizzo passa da stabilito a disconnesso....inoltre uso kaspersky in versione trial quindi completa. Faccio le operazioni richieste..e vediamo che succede. PS: perlatro ho provato a eliminare con Hijack this ma non lo elimina....ti aggiorno.

Ok grazie....ho fatto tutte le operazioni richieste delle quali allego log e dopo ripetuto con hijack this ma quell'indirizzo IP resta sempre...a presto allora.
Malwarebytes non ha trovato nulla. Di seguito i log di JRT e RKILL.

[Junkware Removal Tool (JRT) by Malwarebytes
Version: 8.1.4 (07.09.2017)
Operating System: Windows 10 Pro x64
Ran by PC (Administrator) on 02/01/2019 at 16:04:31,89
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

File System: 0

Registry: 4

Successfully deleted: HKCU\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\\{C500C267-63BF-451F-8797-4D720C9A2ED9} (Registry Value)
Successfully deleted: HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EC1E29BB-F56A-45D8-B023-D3EF710FA0E0} (Registry Key)
Successfully deleted: HKLM\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EC1E29BB-F56A-45D8-B023-D3EF710FA0E0} (Registry Key)
Successfully deleted: HKLM\Software\Wow6432Node\Microsoft\Internet Explorer\Toolbar\\{C500C267-63BF-451F-8797-4D720C9A2ED9



Rkill 2.9.1 by Lawrence Abrams (Grinler)
http://www.bleepingcomputer.com/
Copyright 2008-2019 BleepingComputer.com
More Information about Rkill can be found at this link:
http://www.bleepingcomputer.com/forums/topic308364.html

Program started at: 01/02/2019 04:06:25 PM in x64 mode.
Windows Version: Windows 10 Pro

Checking for Windows services to stop:

* No malware services found to stop.

Checking for processes to terminate:

* C:\Users\PC\AppData\Local\Temp\Rar$EXa944.20186\SU10Guard.exe (PID: 1716) [T-HEUR]

1 proccess terminated!

Checking Registry for malware related settings:

* No issues found in the Registry.

Resetting .EXE, .COM, & .BAT associations in the Windows Registry.

Performing miscellaneous checks:

* Windows Defender Disabled

[HKLM\SOFTWARE\Microsoft\Windows Defender]
"DisableAntiSpyware" = dword:00000001

Searching for Missing Digital Signatures:

* No issues found.

Checking HOSTS File:

* No issues found.

Program finished at: 01/02/2019 04:07:22 PM
Execution time: 0 hours(s), 0 minute(s), and 56 seconds(s)

La versione trial non è completa ha delle limitazioni e la puoi usare solo per un tempo limitato, se vuoi proseguire devi acquistare la licenza.
Per questo ti avevo consigliato Defender, gratuito e già compreso in win.10, io lo uso da anni anche per le transazioni bancarie senza problemi, comunque è solo un consiglio, non intendo influenzare le tue decisioni.

Ho fatto le operazioni richieste sono andato in connessioni di rete e ho trovato queste reti: Ethernet (cavo di rete scollegato: Realtek PCle GBE Family controller) , Ethernet 2 (cavo rete scollegato: Kaspersky Security data escort adapter) oltre alla connessione di rete bluetooth e Wi-Fi (Huawei P9 lite) cioè il mio cellulare. Ho cambiato, non sapendo, a entrambe le reti ethernet (Ethernet e Ethernet 2) i Server DNS preferito scrivi 8.8.8.8 e Server DNS alternativo scrivi 8.8.4.4.

Poi mi sono collegato in internet e ho ricontrollato i codici immessi. Nella connesione Ethernet 2 sono stati mantenuti mentre nella rete Ethernet invace che mantenere 8.8.8.8. me l'ha cambiato in 8.8.8.0. Ho ripetuto di nuovo l'operazione ma me lo cambia in automatico. Non so se è normale. Poi ho fatto scansione con hijack this è la stringa O17 - DHCP DNS 1: 192.168.43.1 non compare più. Allego log.
Logfile of HiJackThis Fork by Alex Dragokas v.2.9.0.11

Platform: x64 Windows 10 (Pro), 10.0.10240.16405, Service Pack: 0
Time: 03.01.2019 - 20:15 (UTC+01:00)
Language: OS: Italian (0x410). Display: Italian (0x410). Non-Unicode: Italian (0x410)
Elevated: Yes
Ran by: PC (group: Administrator) on DESKTOP-MMQ8DTR, FirstRun: no

Firefox: 64.0.0.6914
Edge: 11.0.10240.16397
Internet Explorer: 11.0.10240.16384
Default: C:\Windows\system32\LaunchWinApp.exe "%1" (Microsoft Edge)

Boot mode: Normal

Running processes:
Number | Path
1 C:\Program Files (x86)\Adobe\Acrobat 11.0\Acrobat\acrotray.exe
1 C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
1 C:\Program Files (x86)\Glary Utilities 5\Integrator.exe
1 C:\Program Files (x86)\Kaspersky Lab\Kaspersky Free 19.0.0\avp.exe
1 C:\Program Files (x86)\Kaspersky Lab\Kaspersky Free 19.0.0\avpui.exe
1 C:\Program Files (x86)\Kaspersky Lab\Kaspersky Secure Connection 3.0\ksde.exe
1 C:\Program Files (x86)\Kaspersky Lab\Kaspersky Secure Connection 3.0\ksdeui.exe
1 C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe
1 C:\Users\PC\Desktop\HiJackThis\HiJackThis.exe
1 C:\Windows\SysWOW64\wbem\WmiPrvSE.exe
1 C:\Windows\System32\NetworkUXBroker.exe
1 C:\Windows\System32\RuntimeBroker.exe
1 C:\Windows\System32\SearchFilterHost.exe
1 C:\Windows\System32\SearchIndexer.exe
2 C:\Windows\System32\SearchProtocolHost.exe
1 C:\Windows\System32\SystemSettingsBroker.exe
1 C:\Windows\System32\audiodg.exe
2 C:\Windows\System32\csrss.exe
1 C:\Windows\System32\dasHost.exe
1 C:\Windows\System32\dllhost.exe
1 C:\Windows\System32\dwm.exe
1 C:\Windows\System32\igfxCUIService.exe
1 C:\Windows\System32\igfxEM.exe
1 C:\Windows\System32\igfxHK.exe
1 C:\Windows\System32\igfxTray.exe
1 C:\Windows\System32\lsass.exe
1 C:\Windows\System32\services.exe
1 C:\Windows\System32\sihost.exe
1 C:\Windows\System32\smss.exe
1 C:\Windows\System32\spoolsv.exe
13 C:\Windows\System32\svchost.exe
1 C:\Windows\System32\taskhostw.exe
1 C:\Windows\System32\wbem\WmiPrvSE.exe
1 C:\Windows\System32\wininit.exe
1 C:\Windows\System32\winlogon.exe
1 C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
1 C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
1 C:\Windows\explorer.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main: [Start Page] = http://www.google.it/
O2 - HKLM\..\BHO: ScriptInjectionPluginBrowserHelperObject - {EC1E29BB-F56A-45D8-B023-D3EF710FA0E0} - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Free 19.0.0\x64\IEExt\ie_plugin.dll
O2-32 - HKLM\..\BHO: Adobe Acrobat Create PDF Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll
O2-32 - HKLM\..\BHO: SmartSelect - {F4971EE7-DAA0-4053-9964-665D8EE6A077} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll
O3 - HKLM\..\Toolbar: Kaspersky Protection Toolbar - {C500C267-63BF-451F-8797-4D720C9A2ED9} - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Free 19.0.0\x64\IEExt\ie_plugin.dll
O3-32 - HKLM\..\Toolbar: Adobe Acrobat Create PDF Toolbar - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\WCIEActiveX\AcroIEFavClient.dll
O4 - HKCU\..\Run: [GUDelayStartup] = C:\Program Files (x86)\Glary Utilities 5\StartupManager.exe -delayrun
O4 - HKLM\..\Run: [AdobeAAMUpdater-1.0] = C:\Program Files (x86)\Common Files\Adobe\OOBE\PDApp\UWA\UpdaterStartupUtility.exe
O4 - HKLM\..\Session Manager: [BootExecute] = C:\Windows\system32\autochk.exe *
O4-32 - HKLM\..\Run: [Acrobat Assistant 8.0] = C:\Program Files (x86)\Adobe\Acrobat 11.0\Acrobat\Acrotray.exe
O4-32 - HKLM\..\Run: [Adobe ARM] = C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{76f89671-e403-431a-9599-027607fc171e}: [NameServer] = 8.8.4.4 (Well-known DNS: Google)
O17 - HKLM\System\CCS\Services\Tcpip\..\{76f89671-e403-431a-9599-027607fc171e}: [NameServer] = 8.8.8.8 (Well-known DNS: Google)
O17 - HKLM\System\CCS\Services\Tcpip\..\{d3533953-7e36-4682-b4ac-22029495a44f}: [NameServer] = 8.8.4.4 (Well-known DNS: Google)
O17 - HKLM\System\CCS\Services\Tcpip\..\{d3533953-7e36-4682-b4ac-22029495a44f}: [NameServer] = 8.8.8.0
O23 - Service R2: Adobe Acrobat Update Service - (AdobeARMservice) - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service R2: Intel(R) HD Graphics Control Panel Service - (igfxCUIService1.0.0.0) - C:\Windows\system32\igfxCUIService.exe
O23 - Service R2: Kaspersky Anti-Virus Service 19.0.0 - (AVP19.0.0) - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Free 19.0.0\avp.exe -r
O23 - Service R2: Kaspersky Secure Connection Service 3.0.0 - (KSDE3.0.0) - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Secure Connection 3.0\ksde.exe -r
O23 - Service R2: Servizio A portata di clic di Microsoft Office - (ClickToRunSvc) - C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe /service
O23 - Service S3: Intel(R) Content Protection HECI Service - (cphs) - C:\Windows\SysWow64\IntelCpHeciSvc.exe
O23 - Service S3: Mozilla Maintenance Service - (MozillaMaintenance) - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service S3: Office 64 Source Engine - (ose64) - C:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE
O23 - Service S3: klvssbridge64_19.0.0 - C:\Program Files (x86)\Kaspersky Lab\Kaspersky Free 19.0.0\x64\vssbridge64.exe


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End of file - Time spent: 22,9 sec. - 11640 bytes, CRC32: FFFFFFFF. Sign: 㚎짛