/etc/l7-protocols/protocols/applejuice.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 | # Apple Juice - P2P filesharing - http://www.applejuicenet.de
# Pattern attributes: great veryfast fast
# Protocol groups: p2p
# Wiki: http://www.protocolinfo.org/wiki/AppleJuice
# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE
#
# This pattern has been tested with the Linux version (version
# 0,29,142,229). It matches search reqests and file transfers.
applejuice
# this pattern extracted from ipp2p, by Eicke Friedrich.
^ajprot\x0d\x0a
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