SMB
This protocol triggers when it detects Server Message Blocks (also known as Common Internet File System, CIFS). It operates as an application-layer network protocol mainly used to provide shared access to files and services between nodes on a network. Most usage of SMB involves computers running Microsoft Windows Operating Systems.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+