File: attack.rules

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sagan-rules 1:20170725-1
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# Sagan attack.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 any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Buffer overflow attempt on rpc.statd"; pcre: "/gethostbyname error for \W+/"; classtype: exploit-attempt; program: rpc.statd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000095; sid:5000095; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Buffer overflow attempt on WU-FTPD version prior to 2.6" ; pcre: "/\S+ FTP LOGIN FROM \.+ 0bin0sh/"; classtype: exploit-attempt; program: ftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000096; sid:5000096; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Possible buffer overflow attempt"; content: "?????????????????????"; threshold: type limit, track by_src, count 3, seconds 300; classtype: suspicious-traffic; reference: url,wiki.quadrantsec.com/bin/view/Main/5000097; sid:5000097; rev:3;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] 'Null' user change some information"; content: "changed by"; content: "null";  classtype: exploit-attempt; reference: url,wiki.quadrantsec.com/bin/view/Main/5000098; sid:5000098; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Possible buffer overflow attempt [yppasswd?]" ; content: "@@@@@@@@@@@@@@@@@@@@@@@@@"; classtype: exploit-attempt; reference: url,wiki.quadrantsec.com/bin/view/Main/5000356; sid:5000365; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Heap overflow in the Solaris cachefsd service" ; content: "Segmentation Fault"; content: "core dumped";  program: cachefsd; classtype: exploit-attempt; reference: url,wiki.quadrantsec.com/bin/view/Main/5000366; sid:5000366; rev:2;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Stack overflow attempt with SEGV [Solaris]"; content: "attempt to execute code on stack by"; nocase; classtype: exploit-attempt; reference: url,wiki.quadrantsec.com/bin/view/Main/5000099; sid:5000099; rev:2;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[ATTACK] Possible buffer overflow attempt [NOOP]" ; content: "AAAAAAAAAAAAAAAAAAAAAAAAA"; threshold: type limit, track by_src, count 3, seconds 300;  classtype: suspicious-traffic; reference: url,wiki.quadrantsec.com/bin/view/Main/5000100; sid:5000100; rev:3;)