Deny all PSIPHON traffic

Hi Everyone,

We are having challenges on blocking the PSIPHON traffic. We tried to follow the instructions from this topic https://forums.juniper.net/t5/SRX-Services-Gateway/How-to-block-the-psiphon-application-in-juniper-srx/td-p/468433  but to no avail, the Juniper SRX security policy is bypassed everytime a PSIPHON initiates a connection.

We are using the following units:

1. Model: srx345 | Junos: 15.1X49-D180.2 | JUNOS Software Release [15.1X49-D180.2]
2. Model: srx320 |  Junos: 19.1R1.6 | JUNOS Software Release [19.1R1.6]

Hope we could got more and valuable answers from anyone on this group.