/etc/snort/rules/dns.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 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | # Copyright 2001-2005 Sourcefire, Inc. All Rights Reserved
#
# This file may contain proprietary rules that were created, tested and
# certified by Sourcefire, Inc. (the "VRT Certified Rules") as well as
# rules that were created by Sourcefire and other third parties and
# distributed under the GNU General Public License (the "GPL Rules"). The
# VRT Certified Rules contained in this file are the property of
# Sourcefire, Inc. Copyright 2005 Sourcefire, Inc. All Rights Reserved.
# The GPL Rules created by Sourcefire, Inc. are the property of
# Sourcefire, Inc. Copyright 2002-2005 Sourcefire, Inc. All Rights
# Reserved. All other GPL Rules are owned and copyrighted by their
# respective owners (please see www.snort.org/contributors for a list of
# owners and their respective copyrights). In order to determine what
# rules are VRT Certified Rules or GPL Rules, please refer to the VRT
# Certified Rules License Agreement.
#
#
# $Id: dns.rules,v 1.38.2.3.2.3 2005/05/31 17:13:02 mwatchinski Exp $
#----------
# DNS RULES
#----------
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS zone transfer TCP"; flow:to_server,established; content:"|00 00 FC|"; offset:15; reference:arachnids,212; reference:cve,1999-0532; reference:nessus,10595; classtype:attempted-recon; sid:255; rev:13;)
alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS zone transfer UDP"; content:"|00 00 FC|"; offset:14; reference:arachnids,212; reference:cve,1999-0532; reference:nessus,10595; classtype:attempted-recon; sid:1948; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS named authors attempt"; flow:to_server,established; content:"|07|authors"; offset:12; nocase; content:"|04|bind|00|"; offset:12; nocase; reference:arachnids,480; reference:nessus,10728; classtype:attempted-recon; sid:1435; rev:7;)
alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS named authors attempt"; content:"|07|authors"; offset:12; nocase; content:"|04|bind|00|"; offset:12; nocase; reference:arachnids,480; reference:nessus,10728; classtype:attempted-recon; sid:256; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS named version attempt"; flow:to_server,established; content:"|07|version"; offset:12; nocase; content:"|04|bind|00|"; offset:12; nocase; reference:arachnids,278; reference:nessus,10028; classtype:attempted-recon; sid:257; rev:9;)
alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS named version attempt"; content:"|07|version"; offset:12; nocase; content:"|04|bind|00|"; offset:12; nocase; reference:arachnids,278; reference:nessus,10028; classtype:attempted-recon; sid:1616; rev:7;)
alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"DNS SPOOF query response PTR with TTL of 1 min. and no authority"; content:"|85 80 00 01 00 01 00 00 00 00|"; content:"|C0 0C 00 0C 00 01 00 00 00|<|00 0F|"; classtype:bad-unknown; sid:253; rev:4;)
alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"DNS SPOOF query response with TTL of 1 min. and no authority"; content:"|81 80 00 01 00 01 00 00 00 00|"; content:"|C0 0C 00 01 00 01 00 00 00|<|00 04|"; classtype:bad-unknown; sid:254; rev:4;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT named 8.2->8.2.1"; flow:to_server,established; content:"../../../"; reference:bugtraq,788; reference:cve,1999-0833; classtype:attempted-admin; sid:258; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT named tsig overflow attempt"; flow:to_server,established; content:"|AB CD 09 80 00 00 00 01 00 00 00 00 00 00 01 00 01| |02|a"; reference:arachnids,482; reference:bugtraq,2302; reference:cve,2001-0010; classtype:attempted-admin; sid:303; rev:11;)
alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT named tsig overflow attempt"; content:"|80 00 07 00 00 00 00 00 01|?|00 01 02|"; reference:bugtraq,2303; reference:cve,2001-0010; classtype:attempted-admin; sid:314; rev:9;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT named overflow ADM"; flow:to_server,established; content:"thisissometempspaceforthesockinaddrinyeahyeahiknowthisislamebutanywaywhocareshorizongotitworkingsoalliscool"; reference:bugtraq,788; reference:cve,1999-0833; classtype:attempted-admin; sid:259; rev:7;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT named overflow ADMROCKS"; flow:to_server,established; content:"ADMROCKS"; reference:bugtraq,788; reference:cve,1999-0833; reference:url,www.cert.org/advisories/CA-1999-14.html; classtype:attempted-admin; sid:260; rev:9;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT named overflow attempt"; flow:to_server,established; content:"|CD 80 E8 D7 FF FF FF|/bin/sh"; reference:url,www.cert.org/advisories/CA-1998-05.html; classtype:attempted-admin; sid:261; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT x86 Linux overflow attempt"; flow:to_server,established; content:"1|C0 B0|?1|DB B3 FF|1|C9 CD 80|1|C0|"; classtype:attempted-admin; sid:262; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT x86 Linux overflow attempt"; flow:to_server,established; content:"1|C0 B0 02 CD 80 85 C0|uL|EB|L^|B0|"; classtype:attempted-admin; sid:264; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT x86 Linux overflow attempt ADMv2"; flow:to_server,established; content:"|89 F7 29 C7 89 F3 89 F9 89 F2 AC|<|FE|"; classtype:attempted-admin; sid:265; rev:7;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT x86 FreeBSD overflow attempt"; flow:to_server,established; content:"|EB|n^|C6 06 9A|1|C9 89|N|01 C6|F|05|"; classtype:attempted-admin; sid:266; rev:6;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS EXPLOIT sparc overflow attempt"; flow:to_server,established; content:"|90 1A C0 0F 90 02| |08 92 02| |0F D0 23 BF F8|"; classtype:attempted-admin; sid:267; rev:5;)
# alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS TCP inverse query"; flow:to_server,established; byte_test:1,<,16,2; byte_test:1,&,8,2; reference:bugtraq,2302; reference:cve,2001-0010; classtype:attempted-recon; sid:2922; rev:1;)
# alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS UDP inverse query"; byte_test:1,<,16,2; byte_test:1,&,8,2; reference:bugtraq,2302; reference:cve,2001-0010; classtype:attempted-recon; sid:2921; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS TCP inverse query overflow"; flow:to_server,established; byte_test:1,<,16,4; byte_test:1,&,8,4; isdataat:400; reference:bugtraq,134; reference:cve,1999-0009; classtype:attempted-admin; sid:3153; rev:2;)
alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"DNS UDP inverse query overflow"; byte_test:1,<,16,2; byte_test:1,&,8,2; isdataat:400; reference:bugtraq,134; reference:cve,1999-0009; classtype:attempted-admin; sid:3154; rev:2;)
|