# Sagan asterisk.rules
# Copyright (c) 2009-2020. Quadrant Information Security <www.quadrantsec.com>
# All rights reserved.
#
# Please submit any custom rules or ideas to sagan-submit@quadrantsec.com 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.
#
#*************************************************************

#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Warning message"; content: "WARN"; classtype: program-error; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5000176; sid:5000176; rev:2;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Warning message"; content: "ERROR"; classtype: program-error; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5000177; sid:5000177; rev:2;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Notice message"; content: "NOTICE"; classtype: program-error; program: asterisk; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000178; sid:5000178; rev:3;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Login session failed [0/5]"; content: "Wrong password"; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5000179; threshold:suppress, track by_src, count 5, seconds 900; sid:5000179; rev:4;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Login session failed [invalid user] [0/5]"; content: "Username/auth name mismatch"; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5000180; threshold:suppress, track by_src, count 5, seconds 900; sid:5000180; rev:4;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Login session failed [invalid extension] [0/5]"; content: "No matching peer found"; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5000181; threshold:suppress, track by_src, count 5, seconds 900; sid:5000181; rev:4;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Invalid to address"; content: "Invalid to address"; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5001065; sid: 5001065; rev:2;)

alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Brute force login session failed [5/5]"; content: "Wrong password"; xbits: set, brute_force ,track ip_src, expire 21600; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5002942; after: track by_src, count 5, seconds 300; threshold:suppress, track by_src, count 5, seconds 900; sid:5002942; rev:3;)  
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Brute force login session failed [invalid user] [5/5]"; content: "Username/auth name mismatch"; xbits: set, brute_force ,track ip_src, expire 21600; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5002943; after: track by_src, count 5, seconds 300; threshold:suppress, track by_src, count 5, seconds 900; sid:5002943; rev:3;)  
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ASTERISK] Brute force login session failed [invalid extension] [5/5]"; content: "No matching peer found"; xbits: set, brute_force ,track ip_src, expire 21600; classtype: unsuccessful-user; program: asterisk; reference: url,wiki.quadrantsec.com/bin/view/Main/5002944; after: track by_src, count 5, seconds 300; threshold:suppress, track by_src, count 5, seconds 900; sid:5002944; rev:3;)