1. Netbios Enumeration (Port 137)

used for file and printer sharing. port 137. Netbios name 16 characters. 15 chars define name and 16th character type of service. Port 137 is utilized by the NetBIOS Name service.

Port 139 is used by SMB dialects that communicate over NetBIOS.

Port 137 is utilized by the NetBIOS Name service.

1. Perform Netbios enumeration with windows command line

check the name

nbtstat -a 192.168.18.110

check the contents of Netbios cache

nbtstat -c

enumerate shares without creating share

net use

2. Netbios enumerator

Windows application

3. Netbios enumeration with NSE scripts

nmap -sV -v --script nbstat.nse 192.168.18.110

nmap -sU -p 137 --script nbstat.nse 192.168.18.110