new upstream release (3.3.0); modify package compatibility for Stretch

[ossec-hids.git] / debian / ossec-hids / var / ossec / rules / ids_rules.xml

diff --git a/debian/ossec-hids/var/ossec/rules/ids_rules.xml b/debian/ossec-hids/var/ossec/rules/ids_rules.xml
new file mode 100644 (file)
index 0000000..7fe4993
--- /dev/null
+++ b/debian/ossec-hids/var/ossec/rules/ids_rules.xml
@@ -0,0 +1,104 @@
+<!-- @(#) $Id: ./etc/rules/ids_rules.xml, 2011/09/08 dcid Exp $
+
+  -  Official IDS rules for OSSEC.
+  -
+  -  Copyright (C) 2009 Trend Micro Inc.
+  -  All rights reserved.
+  -
+  -  This program is a free software; you can redistribute it
+  -  and/or modify it under the terms of the GNU General Public
+  -  License (version 2) as published by the FSF - Free Software
+  -  Foundation.
+  -
+  -  License details: http://www.ossec.net/en/licensing.html
+  -->
+
+
+<var name="IDS_FREQ">8</var>      
+
+<group name="ids,">
+  <rule id="20100" level="8">
+    <category>ids</category>
+    <if_fts></if_fts>
+    <description>First time this IDS alert is generated.</description>
+    <group>fts,</group>
+  </rule>
+
+  <rule id="20101" level="6">
+    <category>ids</category>
+    <check_if_ignored>srcip, id</check_if_ignored>
+    <description>IDS event.</description>
+  </rule>
+
+  <!-- This rule ignores some Ids that cause too much
+    -  false positives. Snort specific.
+    -->
+  <rule id="20102" level="0">
+    <if_sid>20100, 20101</if_sid>
+    <decoded_as>snort</decoded_as>
+    <!-- 1:1852 -> robots.txt access
+       - 1:368 - ICMP ping.
+       - 1:384 - ICMP ping.
+       - 1:366 - ICMP ping.
+       - 1:399 - ICMP host unreachable
+       - 1:402 - ICMP port unreachable
+       - 1:408 - ICMP reply
+       - 1:480 - ICMP ping speedera.
+       - 1:1365 - RM commant attempt (too many false positives)
+       - 1:2925 - web bug 0x0 gif attempt
+       -->
+    <id>^1:1852:|^1:368:|^1:384:|^1:366:|^1:402:|^1:408:|^1:1365:|</id>
+    <id>^1:480:|^1:399:|^1:2925:</id>
+    <description>Ignored snort ids.</description>
+  </rule>
+
+  <!-- Ignored Dragon ids -->
+  <rule id="20103" level="0">
+    <if_sid>20100, 20101</if_sid>
+    <decoded_as>dragon-nids</decoded_as>
+    <!-- EOL -> end of line
+       - SOF -> start of file
+       - HEARTBEAT -> Heartbeat
+       - DYNAMIC-TCP -> ?
+       - DYNAMIC-UDP -> ?
+       -->
+    <id>^EOL$|^SOF$|^HEARTBEAT$|^DYNAMIC-TCP$|^DYNAMIC-UDP$</id>
+    <description>Ignored snort ids.</description>
+  </rule>
+
+  <rule id="20152" level="10" frequency="$IDS_FREQ" timeframe="120" ignore="90">
+    <if_matched_sid>20101</if_matched_sid>
+    <same_id />
+    <check_if_ignored>id</check_if_ignored>
+    <description>Multiple IDS alerts for same id.</description>
+  </rule>  
+
+  <rule id="20151" level="10" frequency="$IDS_FREQ" timeframe="120" ignore="90">
+    <if_matched_sid>20101</if_matched_sid>
+    <same_source_ip />
+    <check_if_ignored>srcip, id</check_if_ignored>
+    <description>Multiple IDS events from same source ip.</description>
+  </rule>
+  
+  
+  <!-- This rule is to detect bad configured IDSs alerting on
+     - the same thing all the time. We will skip those events
+     - since they became just noise.
+     -->
+  <rule id="20161" level="11" frequency="3" timeframe="3800">
+    <if_matched_sid>20151</if_matched_sid>
+    <same_source_ip />
+    <same_id />
+    <ignore>srcip, id</ignore>
+    <description>Multiple IDS events from same source ip </description>
+    <description>(ignoring now this srcip and id).</description>
+  </rule>
+
+  <rule id="20162" level="11" frequency="3" timeframe="3800">
+    <if_matched_sid>20152</if_matched_sid>
+    <same_id />
+    <ignore>id</ignore>
+    <description>Multiple IDS alerts for same id </description>
+    <description>(ignoring now this id).</description>
+  </rule>    
+</group>