IODINE
Iodine is a solution which provides tunneling through the standard DNS protocol. This plugin classifies only raw UDP mode and some DNS Resource Records (NULL, PRIVATE, CNAME, A, MX, SRV and TXT) in bidirectional mode.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+