Maintenance, Fine-tuning a deployment, 115

8Maintenance

This section describes the activities used to maintain and fine-tune a Host Intrusion Prevention deployment and includes the following topics:

Fine-tuning a deployment

Policy maintenance and tasks

Running server tasks

Setting up notifications for events

Running reports

Updating

Fine-tuning a deployment

After you have deployed clients with default settings, you can fine-tune and tighten security for optimum protection. Fine-tuning a deployment involves:

Analyzing IPS events.

Creating exception rules and trusted application rules.

Working with client exception rules.

Creating and applying new policies.

Analyzing IPS events

An IPS event is triggered when a security violation, as defined by a signature, is detected. It appears on the IPS Events tab with a severity level of High, Medium, Low, or Information, which maps to a reaction.

When single operation triggers two events, the event with the stronger reaction is taken.

115

Page 115

Image 115

McAfee 6.1 manual Maintenance, Fine-tuning a deployment, Analyzing IPS events, 115

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 What’s new in this release New featuresChanges from the previous release Audience Using this guide Example ConventionsThis guide uses the following conventions Bold Condensed Standard documentation Getting product information Professional Services Customer ServiceContact information Basic Concepts IPS featureSignature rules Exception rules Behavioral rulesEvents Reactions Firewall rules Firewall featureClient firewall rules General feature Application Blocking featureClient application blocking rules Policy enforcement Policy managementPolicies and policy categories Policy ownership Policy inheritance and assignmentPolicy assignment locking Adaptive and Learn mode Preset protectionDeployment and management Reports Tuning „ Deploy Host Intrusion Prevention clients Using ePolicy Orchestrator EPolicy Orchestrator console EPolicy Orchestrator console Assign Policies Policy management Generating notifications Installing the Host Intrusion Prevention serverHost Intrusion Prevention operations Assigning owners to policies 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 Signature Rules Help in the user interfaceIPS Events/Signatures IPS Exception Rules Overview IPS Policies Benefits of Host IPS Host and network IPS signature rules Behavioral rules Preset IPS policiesBenefits of Network IPS Quick access Configuring the IPS Options policyTo configure the IPS Options policy Select the needed options Click ApplyTo create a new IPS Options policy IPS Options dialog box appears 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 To assign IPS Rules policies Configuring the IPS Rules policyTo create a new IPS Rules policy IPS Rules policy details To create an exception Creating exception rules You can view and edit details of an existing exception Editing exception rulesTo edit an exception rule Moving exception rules to another policy To disable/enable an exceptionEnabling and disabling exception rules Deleting exception rules Custom host signatures SignaturesTypes of signatures Host signatures IPS Rules-Signatures tab Viewing signatures To modify the view of signatures To modify default signaturesModifying host and network signatures Creating custom 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 To edit a custom signature Editing custom signaturesDeleting custom signatures To use Standard Method To use Expert Method 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 Deleting Application Protection Rules IPS EventsEditing Application Protection Rules Enabling and disabling Application Protection Rules To view IPS events Viewing events Filtering events Configuring the event viewTo change the event view To hide an event Marking eventsTo mark an event as read To mark an event as unread Hidden Marking similar eventsTo mark similar events „ Agent „ Signatures „ User „ Process „ Severity Level Creating event-based exceptions and trusted applications Viewing event detailsTo view event details To create an event-based trusted application To create an event-based exception Searching for related exceptions IPS Client RulesTo search for a related exception To migrate client rules to an IPS Rules policy Regular View To aggregate client rules Aggregated ViewClick 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 Stateful packet filtering State tableStateful packet inspection Ordering the firewall rule list How firewall rules work Stateful filtering process How stateful filtering works Stateful protocol tracking How stateful packet inspection worksProtocol Description of handling TCP Firewall rule groups and connection-aware groups Overview Stateful filtering Firewall Learn and Adaptive modes Quarantine policies and rules Migrating custom 6.0 firewall rules to 6.1 rules Preset Firewall policiesTo migrate rules Learn Configuring the Firewall Options policyTo configure the Firewall Options policy Select For these settings Off McAfee Default „ Select New Policy Create New Policy dialog box appears Creating new Firewall Rules policies Configuring the Firewall Rules policyTo create a Firewall Rules policy Include Local Subnet Automatically selected Server High Select this For this protection Policy Server Medium Add Policy or Duplicate Policy Viewing and editing firewall rulesDo any of the following To view and edit a firewall rule Creating a new firewall rule or firewall group Select the appropriate settings Click OKTo create a firewall rule Type a name for this group in the Name field To create a new rule groupFirewall Rule Group dialog box appears To create a connection-aware group To add predefined rules Deleting a firewall rule or groupTo delete a firewall rule or group To view all firewall client rules Viewing 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 To configure the Quarantine Options policy Configuring the Quarantine Options policySelect New Policy To create a Quarantine Rules policy Configuring the Quarantine Rules policyQuarantine Rules policy provides access for Creating new Quarantine Rules policies To view and edit a quarantine rule Viewing and editing quarantine rulesClick Properties To delete a quarantine rule or group Creating a new quarantine rule or groupDeleting a quarantine rule or group To create a quarantine rule Application creation Application Blocking Policies Application Blocking feature contains two policy categories Preset Application Blocking policiesApplication hooking Select this policy For these settings Off McAfee Default Configuring the Application Blocking Options policyTo apply an Application Blocking Options policy Application Blocking Options Creating new Application Blocking Rules policies Configuring the Application Blocking Rules policyTo create an Application Blocking Rules policy To view and edit an application blocking rule Viewing and editing Application Blocking Rules 100 Creating new Application Blocking RulesTo create a new application blocking rule Application Rule dialog box appears To view all client application rules Deleting an application blocking ruleViewing application client rules To delete an application blocking rule 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 Regular User Configuring Enforce PoliciesConfiguring the Client UI policy To change the policy setting Disconnected User Administrator UserTo configure a Client UI policy Creating and applying a Client UI policy 107 Setting passwords Click the Advanced Options tab in the Client UI policy To create an administrator password108 Tray icon control To create a time-based passwordTo provide tray icon control of Windows UI To configure trusted network options Configuring the Trusted Networks policy110 Include Local Subnet Select To do this AddEdit Remove Trusted Application tab appears Configuring the Trusted Applications policyCreating and applying Trusted Applications policies To create a new policy To create a trusted application Creating trusted applications Deleting trusted applications To disable/enable a trusted applicationEditing trusted applications Enabling and disabling trusted applications 115 MaintenanceFine-tuning a deployment Analyzing IPS events For details on working with client rules, see Creating exception rules and trusted application rulesWorking with client exception rules Creating and applying new policies Policy inheritance and assignment Policy maintenance and tasksTo view and reset broken inheritance below a specific node Policies tab Click Copy policy assignments To copy and paste policy assignments of a node To view all policies that have been created To view nodes where a policy is assignedPolicy Catalog Viewing policy information To view assignments where policy enforcement is disabled To view the settings and owner of a policyEditing policy information To edit a policy Property Translator Running server tasksDirectory Gateway Event Archiver How notifications work Setting up notifications for eventsCreating rules 124 Host Intrusion Prevention notifications Pre-defined reports Running reportsReport repository IPS Events Summary by Signature Report content controlHost Intrusion Prevention reports Summary information and details Network Intrusion Summary by Source IP IPS Event Summary by TargetSignature Filters on platform and signature type Top 10 Attacked Nodes for IPSTop 10 Triggered Signatures Blocked Application Summary Top 10 Blocked Applications Failed Quarantine UpdatesInitial View Drill Down Host Name From the Task type list, select Repository Pull Checking in the update packageTo add update packages automatically Updating Updating clients To add update packages manuallyTo run an update task To have a client request an update Windows client Host Intrusion Prevention Client Client console System tray icon133 To customize client options Setting optionsUnlocking the client interface To unlock the Host Intrusion Prevention interface Select For this Error ReportingTroubleshooting Show tray icon Error Reporting To set Firewall logging options To set IPS logging optionsSecurity Violations Intrusion alerts Alerts137 Has the Treat rule match as an intrusion option selected To respond to a firewall Learn Mode alertFirewall alerts 138 Application Blocking alerts Spoof Detected alerts Quarantine alerts„ The IP address that the traffic pretends to come from 140 IP Spoof Detected Alert dialog box 141 142 IPS Policy tabIPS Policy options To customize IPS Policy options 143 IPS Policy exception rulesException rules list To edit the exception rules 144 Firewall Policy tabFirewall Policy options To customize Firewall Policy options Firewall rules list Firewall Policy Rules145 146 Application Policy tabApplication Policy options To customize Application Policy options Application rules list Application Policy rules147 Column What it shows Blocked Hosts tabBlocked Hosts list 148 149 To edit the Blocked Hosts listUntil removed 150 Application Protection tabApplication Protection list This list shows all monitored processes on the client 151 Activity Log tabActivity Log options To customize Activity Log options McAfee Host Intrusion Prevention Options Activity Log list152 Select Create Sniffer Capture... Policy enforcement with the Solaris client TroubleshootingClient installation issues Solaris client File/Directory Name Description Client operations issuesRun this command To do this 154 To restart a Solaris client To stop a Solaris client155 Policy enforcement with the Linux client Linux client File Name Description Verifying the client is running 158 Troubleshooting tool 159 Run the command hipts agent offTo stop a Linux client To restart a Linux client 160 Frequently Asked QuestionsWhat is a policy? What is the McAfee Default policy? 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? 164 Writing Custom SignaturesRule Structure Basic structure of a rule is the following 165 Mandatory common sectionsSection Name Value Description Name/domain user name Use of Include and Exclude Section value variables Optional common sectionsUse of the dependencies section Windows IIS Web Server Use of wildcardsUse of environment variables Use of predefined variables Solaris Apache and iPlanet MS SQL Database Server169 170 This topic describes how to write Windows custom signaturesWindows Custom Signatures Class Files 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 181 This topic describes how to write Solaris custom signaturesSolaris Custom Signatures Class UNIXfile Directive File Source File permission New permission Relevant X directives per section Class UNIXapache Advanced Details183 Solaris Custom Signatures 185 Linux Custom Signatures 186 Summary of parameters and directivesList of parameters according to type List of directives according to type 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