NetBIOS over Tcp/IP - Do I want this enabled?

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  1. Posts : 6,906
    windows 10
       #11

    In essance what it does is act as local DNS for the current subnet so it resolves names of local pcs to there IP
      My Computer


  2. Posts : 5,075
    21H1 64 Bit Home
       #12

    I've never understood what it does but i've always disabled it on a home machine:

    How to enable or disable NetBIOS over TCP/IP on Windows 10

    So just a quick test. I enabled then disabled and got the following. Firefox was running.

    ** Thursday 15/04/2021 23:22:44 **
    Launched firefox.exe[8328] « firefox.exe[6092]
    Low-level Drivers and Services
    Registry Key hkey_local_machine\system\ControlSet001\services
    Subkey {032153C4-0064-48E1-81BE-09BE3BF1A3FE} has been added
    Subkey {141D8699-1722-4E4E-A962-53AD7FD0D479} has been added
    Subkey {16C02FAC-7DC3-43ED-8C54-EBCDEA18BACD} has been added
    Subkey {1F8329D7-7C24-4D65-9CD2-776A6A21AF99} has been added
    Subkey {2BD715B7-6B36-4609-B9A6-62ABF59F76DF} has been added
    Subkey {351025C1-A793-440B-BD28-573F18286A79} has been added
    Subkey {55DC9F97-8F7B-4CB3-AB88-00264EC04A33} has been added
    Subkey {78B795F6-310D-4909-B8D8-F84F114BA91D} has been added
    Subkey {7C95693A-A84F-467E-9D2A-9C98F1EAB8E8} has been added
    Subkey {8B72E822-07E5-4F69-B58C-0EB9425B1B6E} has been added
    Subkey {9417F948-0F81-4CE1-943F-2E2B1F410F68} has been added
    Subkey {D876EAFB-B6CA-45E8-89EB-7724E3587E39} has been added
    Subkey {DD50001A-8A49-498C-9481-9E32A332D0B1} has been added
    Subkey {DE8204F6-2EB3-4B10-B026-FC4963B57B35} has been added
    =======================================================
    ** Thursday 15/04/2021 23:22:51 **
    Low-level Drivers and Services
    Registry Key hkey_local_machine\system\CurrentControlSet\services
    Subkey {032153C4-0064-48E1-81BE-09BE3BF1A3FE} has been added
    Subkey {141D8699-1722-4E4E-A962-53AD7FD0D479} has been added
    Subkey {16C02FAC-7DC3-43ED-8C54-EBCDEA18BACD} has been added
    Subkey {1F8329D7-7C24-4D65-9CD2-776A6A21AF99} has been added
    Subkey {2BD715B7-6B36-4609-B9A6-62ABF59F76DF} has been added
    Subkey {351025C1-A793-440B-BD28-573F18286A79} has been added
    Subkey {55DC9F97-8F7B-4CB3-AB88-00264EC04A33} has been added
    Subkey {78B795F6-310D-4909-B8D8-F84F114BA91D} has been added
    Subkey {7C95693A-A84F-467E-9D2A-9C98F1EAB8E8} has been added
    Subkey {8B72E822-07E5-4F69-B58C-0EB9425B1B6E} has been added
    Subkey {9417F948-0F81-4CE1-943F-2E2B1F410F68} has been added
    Subkey {D876EAFB-B6CA-45E8-89EB-7724E3587E39} has been added
    Subkey {DD50001A-8A49-498C-9481-9E32A332D0B1} has been added
    Subkey {DE8204F6-2EB3-4B10-B026-FC4963B57B35} has been added
    =======================================================
    ** Thursday 15/04/2021 23:22:55 **
    Low-level Drivers and Services
    Registry Key hkey_local_machine\system\ControlSet001\services\tcpip\parameters
    Value SearchList (S) will be a new value with data

    Value UseDomainNameDevolution (N) will be a new value with data
    1
    Value EnableICMPRedirect (N) will be a new value with data
    1
    Value DeadGWDetectDefault (N) will be a new value with data
    1
    Value DontAddDefaultGatewayDefault (N) will be a new value with data
    0
    =======================================================
    ** Thursday 15/04/2021 23:23:01 **
    Change Accepted
    =======================================================
    ** Thursday 15/04/2021 23:23:01 **
    Low-level Drivers and Services
    Registry Key hkey_local_machine\system\CurrentControlSet\services\tcpip\parameters
    Value SearchList (S) will be a new value with data

    Value UseDomainNameDevolution (N) will be a new value with data
    1
    Value EnableICMPRedirect (N) will be a new value with data
    1
    Value DeadGWDetectDefault (N) will be a new value with data
    1
    Value DontAddDefaultGatewayDefault (N) will be a new value with data
    0
    =======================================================
    ** Thursday 15/04/2021 23:23:03 **
    Change Accepted
      My Computer


  3. Posts : 17,612
    Win 10 Home 10.0.19044.1706 (x64) [21H2]
    Thread Starter
       #13

    My main concern is whether NetBIOS over tcp/ip is a security issue.
    In the past, many reputable tech sites have mentioned this possibility. As I am technically new to Windows 10 (just about a year), I thought I would inquire.
      My Computer


  4. Posts : 5,174
    Windows 11 Home
       #14

    Even Print Spooler service can be used for exploits. So if you do not need something, just disable it.

    Unpatched bug in Windows print spooler lets malware run as admin
      My Computer


 

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