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NBTscan is a program for scanning IP networks for NetBIOS name information. It sends NetBIOS status query to each address in supplied range and lists received information in human readable form. For each responded host it lists IP address, NetBIOS computer name, logged-in user name and MAC address (such as Ethernet).

This program is useful for security checks, network discovery and forensics investigations.

Installed size: 62 KB
How to install: sudo apt install nbtscan

  • libc6

Scan networks for NetBIOS name information

root@kali:~# nbtscan --help

NBTscan version 1.7.1.
This is a free software and it comes with absolutely no warranty.
You can use, distribute and modify it under terms of GNU GPL 2+.

nbtscan [-v] [-d] [-e] [-l] [-t timeout] [-b bandwidth] [-r] [-q] [-s separator] [-m retransmits] (-f filename)|(<scan_range>) 
	-v		verbose output. Print all names received
			from each host
	-d		dump packets. Print whole packet contents.
	-e		Format output in /etc/hosts format.
	-l		Format output in lmhosts format.
			Cannot be used with -v, -s or -h options.
	-t timeout	wait timeout milliseconds for response.
			Default 1000.
	-b bandwidth	Output throttling. Slow down output
			so that it uses no more that bandwidth bps.
			Useful on slow links, so that ougoing queries
			don't get dropped.
	-r		use local port 137 for scans. Win95 boxes
			respond to this only.
			You need to be root to use this option on Unix.
	-q		Suppress banners and error messages,
	-s separator	Script-friendly output. Don't print
			column and record headers, separate fields with separator.
	-h		Print human-readable names for services.
			Can only be used with -v option.
	-m retransmits	Number of retransmits. Default 0.
	-f filename	Take IP addresses to scan from file filename.
			-f - makes nbtscan take IP addresses from stdin.
	<scan_range>	what to scan. Can either be single IP
			like or
			range of addresses in one of two forms: or
	nbtscan -r
		Scans the whole C-class network.
		Scans a range from to
	nbtscan -v -s :
		Scans C-class network. Prints results in script-friendly
		format using colon as field separator.
		Produces output like that:
	nbtscan -f iplist
		Scans IP addresses specified in file iplist.

Updated on: 2021-Nov-26