26 lines
1.9 KiB
Plaintext
26 lines
1.9 KiB
Plaintext
# Copyright 2001-2019 Sourcefire, Inc. All Rights Reserved.
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#
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# This file contains (i) proprietary rules that were created, tested and certified by
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# Sourcefire, Inc. (the "VRT Certified Rules") that are distributed under the VRT
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# Certified Rules License Agreement (v 2.0), and (ii) rules that were created by
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# Sourcefire and other third parties (the "GPL Rules") that are distributed under the
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# GNU General Public License (GPL), v2.
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#
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# The VRT Certified Rules are owned by Sourcefire, Inc. The GPL Rules were created
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# by Sourcefire and other third parties. The GPL Rules created by Sourcefire are
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# owned by Sourcefire, Inc., and the GPL Rules not created by Sourcefire are owned by
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# their respective creators. Please see http://www.snort.org/snort/snort-team/ for a
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# list of third party owners and their respective copyrights.
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#
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# In order to determine what rules are VRT Certified Rules or GPL Rules, please refer
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# to the VRT Certified Rules License Agreement (v2.0).
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#
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#-----------
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# X11 RULES
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#-----------
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# alert udp $EXTERNAL_NET any -> $HOME_NET 177 (msg:"X11 xdmcp query"; flow:to_server; content:"|00 01 00 03 00 01 00|"; fast_pattern:only; metadata:ruleset community; classtype:attempted-recon; sid:517; rev:7;)
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# alert udp $EXTERNAL_NET any -> $HOME_NET 177 (msg:"X11 xdmcp info query"; flow:to_server; content:"|00 01 00 02 00 01 00|"; fast_pattern:only; metadata:ruleset community; reference:nessus,10891; classtype:attempted-recon; sid:1867; rev:6;)
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# alert tcp $EXTERNAL_NET any -> $HOME_NET 6000 (msg:"X11 MIT Magic Cookie detected"; flow:established; content:"MIT-MAGIC-COOKIE-1"; fast_pattern:only; metadata:ruleset community; classtype:attempted-user; sid:1225; rev:11;)
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# alert tcp $EXTERNAL_NET any -> $HOME_NET 6000 (msg:"X11 xopen"; flow:established; content:"l|00 0B 00 00 00 00 00 00 00 00 00|"; fast_pattern:only; metadata:policy max-detect-ips drop, ruleset community; classtype:unknown; sid:1226; rev:14;)
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