Doc Reference: https://docs.versa-networks.com/Next_Gen_Firewall/SD_Security/Configuration_from_Director/Configure_File_Filtering_(NGFW)



Steps to configure a custom file hash to be blocked, using FTP for example: 


1) Create a file-filter profile using the below snippet as a reference:


Get the sha256sum or sha384sum of a file and add it to the Deny list as shown below.



2) Attach the User defined File Filtering profile to the interested security access policy:




Viewing the profile in Action: