x11.rules

snort入侵检测规则文件2.4 Snort是众所周知的网络入侵检测工具

# Copyright 2001-2005 Sourcefire, Inc. All Rights Reserved
#
# This file may contain proprietary rules that were created, tested and
# certified by Sourcefire, Inc. (the "VRT Certified Rules") as well as
# rules that were created by Sourcefire and other third parties and
# distributed under the GNU General Public License (the "GPL Rules").  The
# VRT Certified Rules contained in this file are the property of
# Sourcefire, Inc. Copyright 2005 Sourcefire, Inc. All Rights Reserved.
# The GPL Rules created by Sourcefire, Inc. are the property of
# Sourcefire, Inc. Copyright 2002-2005 Sourcefire, Inc. All Rights
# Reserved.  All other GPL Rules are owned and copyrighted by their
# respective owners (please see www.snort.org/contributors for a list of
# owners and their respective copyrights).  In order to determine what
# rules are VRT Certified Rules or GPL Rules, please refer to the VRT
# Certified Rules License Agreement.
#
#
# $Id: x11.rules,v 1.19.2.1.2.1 2005/05/16 22:17:52 mwatchinski Exp $
#----------
# X11 RULES
#----------

alert tcp $EXTERNAL_NET any -> $HOME_NET 6000 (msg:"X11 MIT Magic Cookie detected"; flow:established; content:"MIT-MAGIC-COOKIE-1"; reference:arachnids,396; classtype:attempted-user; sid:1225; rev:4;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 6000 (msg:"X11 xopen"; flow:established; content:"l|00 0B 00 00 00 00 00 00 00 00 00|"; reference:arachnids,395; classtype:unknown; sid:1226; rev:4;)