Small Python 3 script with two functions for dealing with Juniper SSG Netscreen hashes.
makepass(user, password) allows the user to generate a Juniper Netscreen SSG style hash.
reversetomd5(knownhash) reverses the Netscreen hash to a standard salted MD5 hash.
reversetomd5(knownhash) has been implemented in Hashcat as mode 22 for the purposes of needing to crack a hash.
Thanks to phillips321 for figuring this out.