# Section 02: NetBIOS Enumeration

## NetBIOS

NetBIOS

> NetBIOS (/ˈnɛtbaɪɒs/) is an acronym for Network Basic Input/Output System. It provides services related to the session layer of the OSI model allowing applications on separate computers to communicate over a local area network. As strictly an API, NetBIOS is not a networking protocol.

Nbtstat

> Nbstat is a utility that displays protocol statistics and current TCP/IP connections using NBT (NetBIOS over TCP/IP), which helps troubleshoot NetBIOS name resolution issues.

nmap

> Nmap is a network scanner created by Gordon Lyon. Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. Nmap provides a number of features for probing computer networks, including host discovery and service and operating system detection.

PsExec can be used to interact with NetBIOS.

Links

* <https://en.wikipedia.org/wiki/NetBIOS>
* <https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/nbtstat>
* <https://learn.microsoft.com/en-us/sysinternals/downloads/psexec>