Dumping the NetBIOS Name Table with Nbtstat and Nbtscan
Another great built-in tool is nbtstat, which calls up the NetBIOS Name Table from a
remote system. The Name Table contains a great deal of information, as shown in the
following example:
remote system. The Name Table contains a great deal of information, as shown in the
following example:
C:\>nbtstat -A 192.168.202.33
Local Area Connection:
Node IpAddress: [192.168.234.244] Scope Id: []
NetBIOS Remote Machine Name Table
Name Type Status
---------------------------------------------
CAESARS <00> UNIQUE Registered
VEGAS2 <00> GROUP Registered
VEGAS2 <1C> GROUP Registered
CAESARS <20> UNIQUE Registered
VEGAS2 <1B> UNIQUE Registered
VEGAS2 <1E> GROUP Registered
VEGAS2 <1D> UNIQUE Registered
..__MSBROWSE__.<01> GROUP Registered
MAC Address = 00-01-03-27-93-8F
As illustrated, nbtstat extracts the system name (CAESARS), the domain or workgroup
it’s in (VEGAS2), and the Media Access Control (MAC) address.
These entities can beidentified by their NetBIOS suffixes (the two-digit hexadecimal number to the right of the name), Older versions of Windows would cough up information about any logged-on users in nbtstat output.
By default on newer versions of Windows, the Messenger service is disabled, thus nbtstat output no longer contains this information.
These entities can beidentified by their NetBIOS suffixes (the two-digit hexadecimal number to the right of the name), Older versions of Windows would cough up information about any logged-on users in nbtstat output.
By default on newer versions of Windows, the Messenger service is disabled, thus nbtstat output no longer contains this information.
logged-on users would normally have an entry in the NetBIOS Name Table for the
Messenger service (see the row beginning with <username>).
Since this service is off by default in newer versions of Windows, the NetBIOS Name Table cannot be used to identify valid account names on the server.
Since this service is off by default in newer versions of Windows, the NetBIOS Name Table cannot be used to identify valid account names on the server.
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