/etc/l7-protocols/extra/audiogalaxy.pat is in l7-protocols 20090528-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | # Audiogalaxy - (defunct) Peer to Peer filesharing
# Pattern attributes: ok fast fast
# Protocol groups: p2p obsolete
# Wiki: http://protocolinfo.org/wiki/Audiogalaxy
# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE
#
# http://www.movspclr.co.uk/info/agprotocol.html
#
# This pattern is untested.
#
# To get or provide more information about this protocol and/or pattern:
# http://www.protocolinfo.org/wiki/Audiogalaxy
# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
audiogalaxy
# (magic cookie that starts conversations)|(magic cookie that starts
# 0.606W/0.608W client/server conversations and a string that should always
# appear in login messages)
^(\x45\x5f\xd0\xd5|\x45\x5f.*0.60(6|8)W)
|