Ports 139 & 445 are Windows ports. Port 139 NetBIOS. NetBIOS Session (TCP), Windows File and Printer Sharing . This is one of the most dangerous port on the Internet. All "File and Printer Sharing" on a Windows machine runs over this port. About 10% of all users on the Internet leave their hard disks exposed on this port. Port 445 SMB

Apr 23, 2020 Metasploit SMB – Exploitation of Port 445 | MACHN1k Oct 29, 2012 SMB sharing not accessible when TCP port 445 listening in May 24, 2017 What is NetBIOS? Characteristics of NetBIOS - Stemjar

Service Name and Transport Protocol Port Number Registry

How To Hack PC: OPEN PORT 139 , 138 , 137 , 136 ,135 AND Feb 08, 2009

Apr 23, 2020

Service overview and network port requirements for Windows