'mysql' rule:
# (C) Copyright 2001-2004, Martin Roesch, Brian Caswell, et al.
# All rights reserved.
# $Id: snortruleinfo.cgi_mysql.html,v 1.1.1.1 2005/11/22 10:15:17 root Exp $
#----------
# MYSQL RULES
#----------
#
# These signatures detect unusual and potentially malicious mysql traffic.
#
# These signatures are not enabled by default as they may generate false
# positive alarms on networks that do mysql development.
#

alert tcp $EXTERNAL_NET any -> $SQL_SERVERS 3306 (msg:"MYSQL root login attempt"; flow:to_server,established; content:"|0A 00 00 01 85 04 00 00 80|root|00|"; classtype:protocol-command-decode; sid:1775; rev:2;)
alert tcp $EXTERNAL_NET any -> $SQL_SERVERS 3306 (msg:"MYSQL show databases attempt"; flow:to_server,established; content:"|0F 00 00 00 03|show databases"; classtype:protocol-command-decode; sid:1776; rev:2;)