X-Git-Url: http://ftp.carnet.hr/carnet-debian/scm?p=ossec-hids.git;a=blobdiff_plain;f=etc%2Frules%2Fmsauth_rules.xml;fp=etc%2Frules%2Fmsauth_rules.xml;h=432c3847278aa50313c84c3d53571dd5c5b3c6d9;hp=a82246519e876654c3e996c8c8f8e415186b5e9b;hb=a62b46c229549212d536867b7e5e24d7576ebe8b;hpb=d623b82886b9b5fbba3fa27c3bfac51f3f8af108

diff --git a/etc/rules/msauth_rules.xml b/etc/rules/msauth_rules.xml
index a822465..432c384 100755
--- a/etc/rules/msauth_rules.xml
+++ b/etc/rules/msauth_rules.xml
@@ -1,4 +1,4 @@
-<!-- @(#) $Id: msauth_rules.xml,v 1.35 2009/11/06 15:30:30 dcid Exp $
+<!-- @(#) $Id$
   -  Example of Microsoft Windows (2000, XP, 2003) rules for OSSEC.
   -
   -  Copyright (C) 2009 Trend Micro Inc.
@@ -6,7 +6,7 @@
   -
   -  This program is a free software; you can redistribute it
   -  and/or modify it under the terms of the GNU General Public
-  -  License (version 3) as published by the FSF - Free Software
+  -  License (version 2) as published by the FSF - Free Software
   -  Foundation.
   -
   -  License details: http://www.ossec.net/en/licensing.html
@@ -81,7 +81,7 @@
 
   <rule id="18110" level="8">
     <if_sid>18104</if_sid>
-    <id>^624|^626|^645|^4720|^4722</id>
+    <id>^624|^626|^645|^4720|^4722|^4741</id>
     <description>User account enabled or created.</description>
     <group>adduser,account_changed,</group>
   </rule>
@@ -107,18 +107,22 @@
     <group>policy_changed,</group>
   </rule>
 
-  <rule id="18114" level="8">
+  <rule id="18114" level="5">
     <if_sid>18104</if_sid>
-    <id>^63|^641|^664|^658|^659|^660|^662|^668|^4907</id>
-    <description>Group account changed.</description>
-    <group>adduser,account_changed,</group>
+    <id>^632$|^4728$|^633$|^4729$|^636$|^4732$|^637$|^4733$|^639$|^4735$|</id>
+    <id>^641$|^4737$|^637$|^4733$|^659$|^4755$|^660$|^4766$|^668$|^4764$|</id>
+    <id>^649$|^4745$|^650$|^4746$|^651$|^4747$|^654$|^4750$|^655$|^4751$|</id>
+    <id>^656$|^4752$|^659$|^4755$|^660$|^4756$|^661$|^4757$|^664$|^4760$|</id>
+    <id>^665$|^4761$|^666$|^4762$</id>
+    <description>Group Account Changed</description>
+    <group>group_changed,win_group_changed,</group>
   </rule>
   
   <rule id="18115" level="8">
     <if_sid>18104</if_sid>
     <id>^640</id>
     <description>General account database changed.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com259.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com259.html</info>
     <group>adduser,account_changed,</group>
   </rule>
   
@@ -179,9 +183,10 @@
   </rule>
   
   <rule id="18128" level="8">
-    <if_sid>18104</if_sid>
-    <id>^65|^66</id>
+    <!-- if_sid>18104</if_sid -->
+    <id>^65xxx</id>
     <description>Group account added/changed/deleted.</description>
+    <info>This rule has been deprecated</info>
     <group>account_changed,</group>
   </rule>
 
@@ -198,7 +203,7 @@
     <if_sid>18106</if_sid>
     <id>^529</id>
     <description>Logon Failure - Unknown user or bad password.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com190.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com190.html</info>
     <group>win_authentication_failed,</group>
   </rule>
 
@@ -207,7 +212,7 @@
     <id>^530</id>
     <description>Logon Failure - Account logon time restriction </description>
     <description>violation.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com191.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com191.html</info>
     <group>win_authentication_failed,login_denied,</group>
   </rule>
 
@@ -215,7 +220,7 @@
     <if_sid>18106</if_sid>
     <id>^531</id>
     <description>Logon Failure - Account currently disabled.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com192.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com192.html</info>
     <group>win_authentication_failed,login_denied,</group>
   </rule>
 
@@ -223,7 +228,7 @@
     <if_sid>18106</if_sid>
     <id>^532</id>
     <description>Logon Failure - Specified account expired.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com193.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com193.html</info>
     <group>win_authentication_failed,login_denied,</group>
   </rule>
 
@@ -232,7 +237,7 @@
     <id>^533</id>
     <description>Logon Failure - User not allowed to login at </description>
     <description>this computer.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com194.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com194.html</info>
     <group>win_authentication_failed,login_denied,</group>
   </rule>
 
@@ -240,7 +245,7 @@
     <if_sid>18106</if_sid>
     <id>^534</id>
     <description>Logon Failure - User not granted logon type.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com195.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com195.html</info>
     <group>win_authentication_failed,</group>
   </rule>
   
@@ -248,7 +253,7 @@
     <if_sid>18106</if_sid>
     <id>^535</id>
     <description>Logon Failure - Account's password expired.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com196.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com196.html</info>
     <group>win_authentication_failed,</group>
   </rule>
 
@@ -292,7 +297,7 @@
     <if_sid>18104</if_sid>
     <id>^671|^4767</id>
     <description>User account unlocked.</description>
-    <info>http://www.ultimatewindowssecurity.com/events/com291.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/events/com291.html</info>
     <group>account_changed,</group>
   </rule>
 
@@ -316,7 +321,7 @@
     <id>^7040</id>
     <group>policy_changed,</group>
     <description>Service startup type was changed.</description>
-    <info>This does not appear to be logged on Windows 2000.</info>
+    <info type="text">This does not appear to be logged on Windows 2000.</info>
   </rule>
 
   <rule id="18146" level="5">
@@ -345,6 +350,462 @@
     <description>Windows User Logoff.</description>
   </rule>
 
+<!-- Granular group rules -->
+
+  <rule id="18200" level="5">
+    <if_sid>18104</if_sid>
+    <id>^631$|^4727$|^635$|^4731$|^658$|^4754$|^648$|^4744$|^653$|^4749$|</id>
+    <id>^663$|^4759$</id>
+    <description>Group Account Created</description>
+    <group>group_created,win_group_created,</group>
+  </rule>
+  
+  <rule id="18201" level="5">
+    <if_sid>18104</if_sid>
+    <id>^634$|^4730$|^638$|^4734$|^662$|^4758$|^652$|^4748$|^657$|^4753$|</id>
+    <id>^667$|^4763$</id>
+    <description>Group Account Deleted</description>
+    <group>group_deleted,win_group_deleted,</group>
+  </rule>
+
+  <rule id="18202" level="5">
+    <if_sid>18200</if_sid>
+    <id>^631$|^4727$</id>
+    <description>Security Enabled Global Group Created</description>
+    <group>group_created,win_group_created,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=631</info>
+  </rule>
+  
+  <rule id="18203" level="5">
+    <if_sid>18114</if_sid>
+    <id>^632$|^4728$</id>
+    <description>Security Enabled Global Group Member Added</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=632</info>
+  </rule>
+  
+  <rule id="18204" level="5">
+    <if_sid>18114</if_sid>
+    <id>^633$|^4729$</id>
+    <description>Security Enabled Global Group Member Removed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=633</info>
+  </rule>
+
+  <rule id="18205" level="5">
+    <if_sid>18201</if_sid>
+    <id>^634$|^4730$</id>
+    <description>Security Enabled Global Group Deleted</description>
+    <group>group_deleted,win_group_deleted,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=634</info>
+  </rule>
+
+  <rule id="18206" level="5">
+    <if_sid>18200</if_sid>
+    <id>^635$|^4731$</id>
+    <description>Security Enabled Local Group Created</description>
+    <group>group_created,win_group_created,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=635</info>
+  </rule>
+  
+  <rule id="18207" level="5">
+    <if_sid>18114</if_sid>
+    <id>^636$|^4732$</id>
+    <description>Security Enabled Local Group Member Added</description>
+   <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=636</info>
+  </rule>
+  
+  <rule id="18208" level="5">
+    <if_sid>18114</if_sid>
+    <id>^637$|^4733$</id>
+    <description>Security Enabled Local Group Member Removed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=637</info>
+  </rule>
+  
+  <rule id="18209" level="5">
+    <if_sid>18201</if_sid>
+    <id>^638$|^4734$</id>
+    <description>Security Enabled Local Group Deleted</description>
+    <group>group_deleted,win_group_deleted,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=638</info>
+  </rule>
+  
+  <rule id="18210" level="5">
+    <if_sid>18114</if_sid>
+    <id>^639$|^4735$</id>
+    <description>Security Enabled Local Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=639</info>
+  </rule>
+  
+  <rule id="18211" level="5">
+    <if_sid>18114</if_sid>
+    <id>^641$|^4737$</id>
+    <description>Security Enabled Global Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=641</info>
+  </rule>
+  
+  <rule id="18212" level="5">
+    <if_sid>18200</if_sid>
+    <id>^658$|^4754$</id>
+    <description>Security Enabled Universal Group Created</description>
+    <group>group_created,win_group_created,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=658</info>
+  </rule>
+  
+  <rule id="18213" level="5">
+    <if_sid>18114</if_sid>
+    <id>^659$|^4755$</id>
+    <description>Security Enabled Universal Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=659</info>
+  </rule>
+  
+  <rule id="18214" level="5">
+    <if_sid>18114</if_sid>
+    <id>^660$|^4756$</id>
+    <description>Security Enabled Universal Group Member Added</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=660</info>
+  </rule>
+  
+  <rule id="18215" level="5">
+    <if_sid>18114</if_sid>
+    <id>^661$|^4757$</id>
+    <description>Security Enabled Universal Group Member Removed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=661</info>
+  </rule>
+  
+  <rule id="18216" level="5">
+    <if_sid>18201</if_sid>
+    <id>^662$|^4758$</id>
+    <description>Security Enabled Universal Group Deleted</description>
+    <group>group_deleted,win_group_deleted,</group>
+    <info>http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=662</info>
+  </rule>
+
+  <rule id="18217" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+\p*S-1-5-32-544\p*</regex>
+    <description>Administrators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18218" level="5">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-1-0}</regex>
+    <description>Everyone Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18219" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-9}</regex>
+    <description>Enterprise Domain Controllers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18220" level="5">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-11}</regex>
+    <description>Authenticated Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18221" level="5">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-13}</regex>
+    <description>Terminal Server Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18222" level="12">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-512}</regex>
+    <description>Domain Admins Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18223" level="5">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-513}</regex>
+    <description>Domain Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+    <rule id="18224" level="0">
+      <if_sid>18223,18203</if_sid>
+      <match>Target Account Name: None</match>
+      <description>Local User Group NONE</description>
+      <info>Bogus group user added to upon creation</info>
+    </rule>
+
+  <rule id="18225" level="12">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-514}</regex>
+    <description>Domain Guests Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18226" level="5">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-515}</regex>
+    <description>Domain Computers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18227" level="12">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-516}</regex>
+    <description>Domain Controllers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18228" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-517}</regex>
+    <description>Cert Publishers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18229" level="12">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\.+-518}</regex>
+    <description>Schema Admins Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18230" level="12">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-519}</regex>
+    <description>Enterprise Admins Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18231" level="10">
+    <if_sid>18203,18204</if_sid>
+    <regex> ID:\s+%{S-1-5-21\S+-520}</regex>
+    <description>Group Policy Creator Owners Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18232" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex>\w* ID:\s+%{S-1-5-21\S+-553}</regex>
+    <description>RAS and IAS Servers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18233" level="5">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-545}</regex>
+    <description>Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18234" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-546}</regex>
+    <description>Guests Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18235" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-547}</regex>
+    <description>Power Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18236" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-548}</regex>
+    <description>Account Operators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18237" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-549}</regex>
+    <description>Server Operators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18238" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex>\w* ID:\s+%{S-1-5-32-550}</regex>
+    <description>Print Operators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18239" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-551}</regex>
+    <description>Backup Operators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18240" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-552}</regex>
+    <description>Replicators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18241" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-554}</regex>
+    <description>Pre-Windows 2000 Compatible Access Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18242" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-555}</regex>
+    <description>Remote Desktop Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18243" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-556}</regex>
+    <description>Network Configuration Operators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18244" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-557}</regex>
+    <description>Incoming Forest Trust Builders Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18245" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-558}</regex>
+    <description>Performance Monitor Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18246" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-559}</regex>
+    <description>Performance Log Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18247" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-560}</regex>
+    <description>Windows Authorization Access Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18248" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-561}</regex>
+    <description>Terminal Server License Servers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18249" level="8">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-562}</regex>
+    <description>Distributed COM Users Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18250" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-\s*21\.+\s*-498}</regex>
+    <description>Enterprise Read-only Domain Controllers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18251" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-\s*21\.+\s*-529}</regex>
+    <description>Read-only Domain Controllers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18252" level="12">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-569}</regex>
+    <description>Cryptographic Operators Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18253" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-\s*21\.+\s*-571}</regex>
+    <description>Allowed RODC Password Replication Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18254" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-\s*21\.+\s*-572}</regex>
+    <description>Denied RODC Password Replication Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18255" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-573}</regex>
+    <description>Event Log Readers Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
+
+  <rule id="18256" level="10">
+    <if_sid>18207,18208</if_sid>
+    <regex> ID:\s+%{S-1-5-32-574}</regex>
+    <description>Certificate Service DCOM Access Group Changed</description>
+    <group>group_changed,win_group_changed,</group>
+    <info>http://support.microsoft.com/kb/243330</info>
+  </rule>
 
   <!-- Ignore Login events, type 5, from Advapi for:
     -  LOCAL SERVICE and NETWORK SERVICE.
@@ -363,7 +824,7 @@
     <match>Failure Code: 0x1F</match>
     <description>Windows DC integrity check on decrypted </description>
     <description>field failed.</description>
-    <info>http://www.ultimatewindowssecurity.com/kerberrors.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/kerberrors.html</info>
     <group>win_authentication_failed,attacks,</group>
   </rule>
   
@@ -371,7 +832,7 @@
     <if_sid>18139</if_sid>
     <match>Failure Code: 0x22</match>
     <description>Windows DC - Possible replay attack.</description>
-    <info>http://www.ultimatewindowssecurity.com/kerberrors.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/kerberrors.html</info>
     <group>win_authentication_failed,attacks,</group>
   </rule>
 
@@ -379,7 +840,7 @@
     <if_sid>18139</if_sid>
     <match>Failure Code: 0x25</match>
     <description>Windows DC - Clock skew too great.</description>
-    <info>http://www.ultimatewindowssecurity.com/kerberrors.html</info>
+    <info type="link">http://www.ultimatewindowssecurity.com/kerberrors.html</info>
     <group>win_authentication_failed,attacks,</group>
   </rule>