/etc/snort/rules/community-dos.rules is in snort-rules-default 2.9.7.0-5build1.
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 | # Copyright 2005 Sourcefire, Inc. All Rights Reserved.
# These rules are licensed under the GNU General Public License.
# Please see the file LICENSE in this directory for more details.
# $Id: community-dos.rules,v 1.7 2007/02/22 20:44:35 akirk Exp $
#Rule submitted by rmkml
alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"COMMUNITY DOS Tcpdump rsvp attack"; ip_proto:46; content:"|00 08 14 01 03 00 00 00|"; reference:cve,2005-1280; reference:cve,2005-1281; reference:bugtraq,13391; classtype:attempted-dos; sid:100000134; rev:1;)
alert udp $EXTERNAL_NET any -> $HOME_NET 1069 (msg:"COMMUNITY DOS Ethereal slimp overflow attempt"; content:"|6C C3 B2 A1 02 00 04 00 00 00 00 00 00 00 00 00 FF FF 00 00 01 00 00 00 56 57 F7|"; reference:cve,2005-3243; reference:url,www.ethereal.com/docs/release-notes/ethereal-0.10.13.html; classtype:attempted-dos; sid:100000175; rev:1;)
alert tcp $EXTERNAL_NET any <> $HOME_NET 5005 (msg:"COMMUNITY DOS Trend Micro ServerProtect EarthAgent attempt"; flow:stateless; content:"|21 43 65 87|"; reference:cve,2005-1928; reference:url,www.idefense.com/application/poi/display?id=356&type=vulnerabilities; classtype:attempted-dos; sid:100000215; rev:2;)
#Rules submitted by the Verisign MSS Operations Team
alert tcp $EXTERNAL_NET any -> $HOME_NET 6667:7000 (msg:"COMMUNITY DOS EnergyMech parse_notice vulnerability - inbound"; flow:to_server,established; content:"NOTICE|20|"; content:!"|5c|"; within:11; reference:bugtraq,18664; classtype:attempted-dos; sid:100000686; rev:2;)
alert tcp $HOME_NET 6667:7000 -> $EXTERNAL_NET any (msg:"COMMUNITY DOS EnergyMech parse_notice vulnerability - outbound"; flow:to_server,established; content:"NOTICE|20|"; content:!"|5c|"; within:11; reference:bugtraq,18664; classtype:attempted-dos; sid:100000687; rev:2;)
#Rule submitted by Dan Protich
alert udp $EXTERNAL_NET !53 <> $HOME_NET !53 (msg:"COMMUNITY DOS Single-Byte UDP Flood"; content:"0"; dsize:1; classtype:attempted-dos; threshold: type threshold, track by_dst, count 200, seconds 60; sid:100000923; rev:1;)
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