/etc/sagan-rules/squid.rules is in sagan-rules 10212010-r1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | # Sagan squid.rules
# Copyright (c) 2009-2010, Softwink, Inc.
# All rights reserved.
#
# Please submit any custom rules or ideas to sagan-submit@softwink.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.
#
#*************************************************************
#
# In order for these rules to function with Squid, you'll need:
# "access_log syslog" in your squid.conf .
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] TCP_DENIED"; content: "TCP_DENIED"; classtype: suspicious-traffic; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000043; sid: 5000043; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] TCP_DENIED unsupported-request-method"; content: "TCP_DENIED"; content: "unsupported-request-method"; classtype: suspicious-traffic; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000044; sid: 5000044; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] TCP_DENIED invalid-request"; content: "TCP_DENIED"; content: "invalid-request"; classtype: suspicious-traffic; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000045; sid: 5000045; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] @CGIDIRScgiwrap attempt"; content: "@CGIDIRScgiwrap"; classtype: web-application-activity; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000046; sid: 5000046; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] Directory traversal attempt"; content: "../.."; classtype: web-application-attack; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000047; sid: 5000047; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg: "[SQUID] XSS attempt"; content: "<script>"; nocase; content: "alert"; nocase; content: "document.cookie"; nocase; content: "</script>"; classtype: suspicious-traffic; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000048; sid: 5000048; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] 'passwd' access attempt"; content: "passwd"; classtype: web-application-attack; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000049; sid: 5000049; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] Directory traversal attempt"; content: "///"; classtype: web-application-attack; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000050; sid: 5000050; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 3128 (msg:"[SQUID] MSG Messenger access"; content: "x-msn-messenger"; classtype: policy-violation; program: squid; reference: url,wiki.softwink.com/bin/view/Main/5000387; sid: 5000387; rev:1;)
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