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openssh-geoip.rules
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openssh-geoip.rules
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# Sagan openssh-geoip.rules
# Copyright (c) 2009-2013, Quadrant Information Security <www.quadrantsec.com>
# All rights reserved.
#
# Please submit any custom rules or ideas to [email protected] or the sagan-sigs mailing list
#
#*************************************************************
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
# following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions and the following
# disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other materials provided with the distribution.
# * Neither the name of the nor the names of its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#*************************************************************
#
# Not getting the source IP addresses that you'd expect? Then you probably
# have OpenSSH's "UseDNS" set to "Yes" in your sshd_config file. You'll
# need to set that to "No" so Sagan can "find" the source IP addresses and
# port information.
# 10.1.7.2|authpriv|info|info|56|2013-12-02|14:21:19|sshd| Accepted password for bob from 10.1.16.1 port 51860 ssh2
alert tcp $EXTERNAL_NET any -> $HOME_NET $SSH_PORT (msg:"[OPENSSH-GEOIP] Authentication success via password from outside HOME_COUNTRY"; content: "Accepted password"; classtype: successful-user; reference: url,wiki.quadrantsec.com/bin/view/Main/5001874; normalize: openssh; program: sshd; country_code: track by_src, isnot $HOME_COUNTRY; sid: 5001874; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $SSH_PORT (msg:"[OPENSSH-GEOIP] Authentication success via publickey from outside HOME_COUNTRY"; content: "Accepted publickey"; classtype: successful-user; reference: url,wiki.quadrantsec.com/bin/view/Main/5001875; normalize: openssh; program: sshd; country_code: track by_src, isnot $HOME_COUNTRY; sid: 5001875; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $SSH_PORT (msg:"[OPENSSH-GEOIP] Authentication success via keyboard from outside HOME_COUNTRY"; content: "Accepted keyboard-interactive"; classtype: successful-user; reference: url,wiki.quadrantsec.com/bin/view/Main/5001876; normalize: openssh; program: sshd; country_code: track by_src, isnot $HOME_COUNTRY; sid: 5001876; rev:1;)