Mandatory common sections, 165 | McAfee 6.1 manual

McAfee® Host Intrusion Prevention 6.1 Product Guide	Writing Custom Signatures
	Rule Structure

A

A rule to prevent a request to the web server that has “subject” in the http request query has the following format:

Rule {

Class Isapi Id 4001 level 4

query { Include “*subject*” } method { Include “GET” } time { Include “*” } application { Include “*”} user_name { Include “*” } directives -c -d isapi:request

}

See Windows Custom Signatures for an explanation of the various sections and values.

Mandatory common sections

A rule’s mandatory sections and their values include the items below. For mandatory sections relevant to the class section that is selected, see the class section under Windows, Unix, and Linux Custom Signatures.The keywords Include and Exclude are used for all sections except for Id, level, and directives. Include means that the section works on the value indicated, and Exclude means that the section works on all values except the one indicated.

Section Name	Value	Description

Class	Depends on operating system.	Indicates the class this rule applies to.
		See:
			Windows Custom Signatures
			Solaris Custom Signatures
			Linux Custom Signatures

Id	4000 - 7999	The unique ID number of the signature.
		The numbers are the ones available for
		custom rules.

level	0	The security level of the signature:
	1		0=Disabled
	2		1=White
	3		2=Yellow
	4		3= Orange
			4= Red

time	{Include “*”}	This section has this one value only.

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Image 165

McAfee 6.1 manual Mandatory common sections, 165, Section Name Value Description

Contents

McAfee Host Intrusion Prevention Page McAfee Host Intrusion Prevention Copyright Contents IPS Policies General Policies 103 Frequently Asked Questions 160 Writing Custom Signatures 164 IntroducingPrevention Host Intrusion New features What’s new in this releaseChanges from the previous release Audience Using this guide This guide uses the following conventions ConventionsBold Condensed Example Standard documentation Getting product information Customer Service Professional ServicesContact information IPS feature Basic ConceptsSignature rules Events Behavioral rulesReactions Exception rules Firewall feature Firewall rulesClient firewall rules Application Blocking feature General featureClient application blocking rules Policy management Policy enforcementPolicies and policy categories Policy inheritance and assignment Policy ownershipPolicy assignment locking Preset protection Adaptive and Learn modeDeployment and management Reports Tuning „ Deploy Host Intrusion Prevention clients Using ePolicy Orchestrator EPolicy Orchestrator console EPolicy Orchestrator console Assign Policies Policy management Host Intrusion Prevention operations Installing the Host Intrusion Prevention serverAssigning owners to policies Generating notifications Viewing and working with client data Deploying Host Intrusion Prevention clients Placing clients in Adaptive or Learn mode Policy viewing alerts Configuring policies Active X control security warning Fine-tuning Help navigation procedures Using Help IPS Events/Signatures Help in the user interfaceIPS Exception Rules IPS Signature Rules Overview IPS Policies Benefits of Host IPS Host and network IPS signature rules Preset IPS policies Behavioral rulesBenefits of Network IPS Configuring the IPS Options policy Quick accessTo configure the IPS Options policy To create a new IPS Options policy Click ApplyIPS Options dialog box appears Select the needed options Configuring the IPS Protection policy To create a new IPS Protection policy To configure the IPS Protection policy Select the type of reaction for each severity level IPS Protection dialog box appears Configuring the IPS Rules policy To assign IPS Rules policiesTo create a new IPS Rules policy IPS Rules policy details To create an exception Creating exception rules Editing exception rules You can view and edit details of an existing exceptionTo edit an exception rule Enabling and disabling exception rules To disable/enable an exceptionDeleting exception rules Moving exception rules to another policy Types of signatures SignaturesHost signatures Custom host signatures IPS Rules-Signatures tab Viewing signatures Modifying host and network signatures To modify default signaturesCreating custom signatures To modify the view of signatures To create signatures using the wizard Using the wizard to create signatures To create a signature with the standard mode Using the standard mode to create signatures New Custom Signature-General tab Deleting custom signatures Editing custom signaturesTo use Standard Method To use Expert Method To edit a custom signature 11 Application Protection Rules analysis Application Protection Rules 12 IPS Rules-Application Protection Rules To create an application protection rule 13 New Trusted Application dialog box-General tab Editing Application Protection Rules IPS EventsEnabling and disabling Application Protection Rules Deleting Application Protection Rules To view IPS events Viewing events Configuring the event view Filtering eventsTo change the event view To mark an event as read Marking eventsTo mark an event as unread To hide an event To mark similar events Marking similar events„ Agent „ Signatures „ User „ Process „ Severity Level Hidden Viewing event details Creating event-based exceptions and trusted applicationsTo view event details To create an event-based trusted application To create an event-based exception IPS Client Rules Searching for related exceptionsTo search for a related exception To migrate client rules to an IPS Rules policy Regular View Aggregated View To aggregate client rulesClick the Aggregate View tab on the IPS Client Rules tab To search for exceptions and manage the list of exceptions Search IPS Exception Rules 22 Search IPS Exception Rules tab Firewall Policies HIP 6.1 rules HIP 6.0 rules State table Stateful packet filteringStateful packet inspection Ordering the firewall rule list How firewall rules work Stateful filtering process How stateful filtering works How stateful packet inspection works Stateful protocol trackingProtocol Description of handling TCP Firewall rule groups and connection-aware groups Overview Stateful filtering Firewall Learn and Adaptive modes Quarantine policies and rules Preset Firewall policies Migrating custom 6.0 firewall rules to 6.1 rulesTo migrate rules To configure the Firewall Options policy Configuring the Firewall Options policySelect For these settings Off McAfee Default Learn „ Select New Policy Create New Policy dialog box appears Configuring the Firewall Rules policy Creating new Firewall Rules policiesTo create a Firewall Rules policy Include Local Subnet Automatically selected Server High Select this For this protection Policy Server Medium Do any of the following Viewing and editing firewall rulesTo view and edit a firewall rule Add Policy or Duplicate Policy Select the appropriate settings Click OK Creating a new firewall rule or firewall groupTo create a firewall rule Firewall Rule Group dialog box appears To create a new rule groupTo create a connection-aware group Type a name for this group in the Name field Deleting a firewall rule or group To add predefined rulesTo delete a firewall rule or group Viewing firewall client rules To view all firewall client rulesTo modify the view, do any of the following To view details of an aggregated firewall rule To view aggregated firewall client rules Configuring the Quarantine Options policy To configure the Quarantine Options policySelect New Policy Quarantine Rules policy provides access for Configuring the Quarantine Rules policyCreating new Quarantine Rules policies To create a Quarantine Rules policy Viewing and editing quarantine rules To view and edit a quarantine ruleClick Properties Deleting a quarantine rule or group Creating a new quarantine rule or groupTo create a quarantine rule To delete a quarantine rule or group Application creation Application Blocking Policies Preset Application Blocking policies Application Blocking feature contains two policy categoriesApplication hooking Configuring the Application Blocking Options policy Select this policy For these settings Off McAfee DefaultTo apply an Application Blocking Options policy Application Blocking Options Configuring the Application Blocking Rules policy Creating new Application Blocking Rules policiesTo create an Application Blocking Rules policy To view and edit an application blocking rule Viewing and editing Application Blocking Rules To create a new application blocking rule Creating new Application Blocking RulesApplication Rule dialog box appears 100 Viewing application client rules Deleting an application blocking ruleTo delete an application blocking rule To view all client application rules To view details of an aggregated client application rule To view aggregated client application rules General Policies General feature contains four policy categories Preset General policies Configuring the Client UI policy Configuring Enforce PoliciesTo change the policy setting Regular User To configure a Client UI policy Administrator UserCreating and applying a Client UI policy Disconnected User 107 Setting passwords To create an administrator password Click the Advanced Options tab in the Client UI policy108 To create a time-based password Tray icon controlTo provide tray icon control of Windows UI Configuring the Trusted Networks policy To configure trusted network options110 Edit Select To do this AddRemove Include Local Subnet Creating and applying Trusted Applications policies Configuring the Trusted Applications policyTo create a new policy Trusted Application tab appears To create a trusted application Creating trusted applications Editing trusted applications To disable/enable a trusted applicationEnabling and disabling trusted applications Deleting trusted applications Fine-tuning a deployment MaintenanceAnalyzing IPS events 115 Working with client exception rules Creating exception rules and trusted application rulesCreating and applying new policies For details on working with client rules, see To view and reset broken inheritance below a specific node Policy maintenance and tasksPolicies tab Policy inheritance and assignment Click Copy policy assignments To copy and paste policy assignments of a node Policy Catalog To view nodes where a policy is assignedViewing policy information To view all policies that have been created To view the settings and owner of a policy To view assignments where policy enforcement is disabledEditing policy information To edit a policy Directory Gateway Running server tasksEvent Archiver Property Translator Setting up notifications for events How notifications workCreating rules 124 Host Intrusion Prevention notifications Running reports Pre-defined reportsReport repository Host Intrusion Prevention reports Report content controlSummary information and details IPS Events Summary by Signature IPS Event Summary by Target Network Intrusion Summary by Source IPSignature Top 10 Triggered Signatures Top 10 Attacked Nodes for IPSBlocked Application Summary Filters on platform and signature type Failed Quarantine Updates Top 10 Blocked ApplicationsInitial View Drill Down Host Name To add update packages automatically Checking in the update packageUpdating From the Task type list, select Repository Pull To run an update task To add update packages manuallyTo have a client request an update Updating clients Windows client Host Intrusion Prevention Client System tray icon Client console133 Unlocking the client interface Setting optionsTo unlock the Host Intrusion Prevention interface To customize client options Troubleshooting Error ReportingShow tray icon Error Reporting Select For this To set IPS logging options To set Firewall logging optionsSecurity Violations Alerts Intrusion alerts137 Firewall alerts To respond to a firewall Learn Mode alert138 Has the Treat rule match as an intrusion option selected Application Blocking alerts Quarantine alerts Spoof Detected alerts„ The IP address that the traffic pretends to come from 140 IP Spoof Detected Alert dialog box 141 IPS Policy options IPS Policy tabTo customize IPS Policy options 142 Exception rules list IPS Policy exception rulesTo edit the exception rules 143 Firewall Policy options Firewall Policy tabTo customize Firewall Policy options 144 Firewall Policy Rules Firewall rules list145 Application Policy options Application Policy tabTo customize Application Policy options 146 Application Policy rules Application rules list147 Blocked Hosts list Blocked Hosts tab148 Column What it shows To edit the Blocked Hosts list 149Until removed Application Protection list Application Protection tabThis list shows all monitored processes on the client 150 Activity Log options Activity Log tabTo customize Activity Log options 151 152 Activity Log listSelect Create Sniffer Capture... McAfee Host Intrusion Prevention Options Client installation issues TroubleshootingSolaris client Policy enforcement with the Solaris client Run this command To do this Client operations issues154 File/Directory Name Description To stop a Solaris client To restart a Solaris client155 Policy enforcement with the Linux client Linux client File Name Description Verifying the client is running 158 Troubleshooting tool To stop a Linux client Run the command hipts agent offTo restart a Linux client 159 What is a policy? Frequently Asked QuestionsWhat is the McAfee Default policy? 160 161 How do I create an exception based on an IPS Event? How do I view IPS events triggered by clients? How do I find existing policies that match a given profile? How do I create custom signatures for an IPS Policy? Rule Structure Writing Custom SignaturesBasic structure of a rule is the following 164 Mandatory common sections 165Section Name Value Description Name/domain user name Use of Include and Exclude Optional common sections Section value variablesUse of the dependencies section Use of environment variables Use of wildcardsUse of predefined variables Windows IIS Web Server MS SQL Database Server Solaris Apache and iPlanet169 Windows Custom Signatures This topic describes how to write Windows custom signaturesClass Files 170 171 GUI name Explanation Advanced Details Class Isapi Machine where the client is installed in the manner host Windows Custom Signatures Class Registry 177 Section Values Meaning/remarks Class Services GUI Name Explanation Possible Values Windows Custom Signatures Solaris Custom Signatures This topic describes how to write Solaris custom signaturesClass UNIXfile 181 Directive File Source File permission New permission Relevant X directives per section Advanced Details Class UNIXapache183 Solaris Custom Signatures 185 Linux Custom Signatures List of parameters according to type Summary of parameters and directivesList of directives according to type 186 187 Glossary Blocked host 188 Console tree 189 EPolicy Orchestrator database server 190 See also minimal properties 191 Inactive agent 192 Policy enforcement interval 193 Severity level 194 SYN flood 195 Index Working with clients Signatures, 46 creating, 48 creating custom Firewall policy tab rules List IPS Policy tab Page Mcafee.com