File: xinetd.rules

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# Sagan xinetd.rules
# Copyright (c) 2009-2017, 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 syslog $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] Removing service"; content: "removing; classtype: system-event; program: xinetd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000256; sid: 5000256; rev:2;)
#alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] Starting service"; content: "Started working"; classtype: system-event; program: xinetd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000257; sid: 5000257; rev:2;)
alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] Excessive number connections to a service"; content: "deactivating service"; nocase; classtype: attempted-dos; program: xinetd; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000379; sid: 5000379; rev:4;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] Telnet connection from remote host"; content: "START"; content: "telnet"; default_proto: tcp; default_dst_port: $TELNET_PORT; classtype: not-suspicious; program: xinetd; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000247; sid: 5000247; rev:5;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] Telnet connection exit"; content: "EXIT"; content: "telnet"; default_proto: tcp; default_dst_port: $TELNET_PORT; classtype: not-suspicious; program: xinetd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000248; sid: 5000248; rev:3;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] POP3 connection from remote host"; content: "START"; content: "pop-3"; default_proto: tcp; default_dst_port: $POP3_PORT; classtype: not-suspicious; program: xinetd; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000249; sid: 5000249; rev:5;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] POP3 connection exit"; content: "EXIT"; content: "pop-3"; default_proto: tcp; default_dst_port: $TELNET_PORT; classtype: not-suspicious; program: xinetd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000250; sid: 5000250; rev:3;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] IMAP2 connection from remote host"; content: "START"; content: "imap2"; default_proto: tcp; default_dst_port: $IMAP_PORT; classtype: not-suspicious; program: xinetd; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000251; sid: 5000251; rev:3;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] IMAP2 connection exit"; content: "EXIT"; content: "imap2"; default_proto: tcp; default_dst_port: $IMAP_PORT; classtype: not-suspicious; program: xinetd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000252; sid: 5000252; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] POP3S [SSL] connection from remote host"; content: "START"; content: "pop3s"; default_proto: tcp; default_dst_port: 993; classtype: not-suspicious; program: xinetd; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000253; sid: 5000253; rev:4;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] POP3S [SSL] connection exit"; content: "EXIT"; content: "pop3s"; default_proto: tcp; default_dst_port: 993; classtype: not-suspicious; program: xinetd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000254; sid: 5000254; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] POP3S [SSL] User login "; content: "USERID"; content: "pop3s"; default_proto: tcp; default_dst_port: 993; classtype: successful-user; program: xinetd; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000255; sid: 5000255; rev:3;)

# courierpassd rules 10/11/2011 - Champ Clark

alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[XINETD] Courierpassd|Poppassd - Old password is incorrect"; content: "old password"; classtype: unsuccessful-user; program: courierpassd|poppassd; reference: url,wiki.quadrantsec.com/bin/view/Main/5001102; sid: 5001102; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[COURIER] Courierpassd|Poppassd - Changed user password"; content: "changed POP3"; classtype: successful-user; program: courierpassd|poppassd; reference: url,wiki.quadrantsec.com/bin/view/Main/5001103; sid: 5001103; rev:2;)