Intrusion Defense Firewall 1.2 User's Guide - Trend Micro? Online ...

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Contexts Use this screen to configure the settings Deep Security will use to determine whether a protected computer has Internet connectivity or not. Some Deep Security Rules can be applied conditionally depending on the computer's network connectivity conditions. This is known as "Location Awareness". The Internet connectivity condition options for a particular rule can be configured on the Options tab of the rule's Properties screen. The Internet Connectivity Test can also be used when implementing Interface Isolation. (See System > System Settings > Interface Isolation.) Internet Connectivity Test URL for testing Internet Connectivity Status: The URL to which an HTTP request will be sent to test Internet Connectivity. (You must include "http://".) Regular Expression for returned content used to confirm Internet Connectivity Status: A regular expression which will be applied to the returned content to confirm that HTTP communication was successful. Test Interval: The time interval between connectivity tests. © Copyright 2010 Trend Micro Inc. www.trendmicro.com All rights reserved. - 64 -
Analysis The Analysis screen allows users to enable and configure traffic analysis settings on all or selected Computers. Detection Enabled: Turn traffic analysis on or off. Computers/Networks on which to perform traffic analysis: Choose from the drop-down list the IPs to protect. Choose from existing IP Lists. (You can use the Components > IP Lists screen to create an IP List specifically for this purpose.) Do not analyze traffic coming from : Select from a set of IP Lists which Computers and networks to ignore. (As above, you can use the Components > IP Lists screen to create an IP List specifically for this purpose.) For each type of attack, the Client Plug-in can be instructed to send the information to the IDF Server Plug-in where an alert will be triggered. You can configure the Server Plug-in to send an email notification when the alerts are triggered. (See System > System Settings > Notifications. The Alerts are: "Network or Port Scan Detected", "Computer OS Fingerprint Probe Detected", "TCP Null Scan Detected", "TCP FIN Scan Detected", and "TCP Xmas Scan Detected.") Select Notify IDF Server Immediately for this option. Once an attack has been detected, you can instruct the client plug-ins to block traffic from the source IPs for a period of time. Use the Block Traffic drop-down lists to set the number of minutes. Computer OS Fingerprint Probe: The Client Plug-ins will recognize and react to active TCP stack OS fingerprinting attempts. Network or Port Scan: The Client Plug-ins will recognize and react to port scans. TCP Null Scan: The Client Plug-ins will refuse packets with no flags set. TCP SYNFIN Scan: The Client Plug-ins will refuse packets with only the SYN and FIN flags set. TCP Xmas Scan: The Client Plug-ins will refuse packets with only the SYN, URG, and PSH flags set. "Computer OS Fingerprint Probe" and "Network or Port Scans" differ from the other three types of reconnaissance in that they cannot be recognized by a single packet. The Client Plug-in reports a Computer or port scan if it detects that a remote IP is visiting an abnormal ratio of IPs to ports. Normally a client plug-in computer will only see traffic destined for itself, so a port scan is by far the most common variation that will be detected. If a computer however is acting as a router or bridge it could see traffic for a number of other computers, making it possible for the client plug-in to detect a Computer scan (ex. scanning a whole subnet for computers with port 80 open). Detecting these scans can take several seconds since the client plug-in needs to be able to track failed connections and decide that there are an abnormal number of failed connections coming from a single Computer in a relatively short period of time. The statistical analysis method used in Computer/port scan detection is derived from the "TAPS" algorithm proposed in the paper "Connectionless Port Scan Detection on the Backbone" published by Sprint/Nextel and presented at the Malware workshop, held in conjunction with IPCCC, Phoenix, AZ, USA in April, 2006. For the "Notify IDF Server Immediately" option to work, the Client Plug-ins must be configured for Client Plug-in initiated or bi-directional communication. (See System > System Settings > Computers.) If enabled, the Client Plug-in will initiate a heartbeat to the IDF Server Plug-in immediately upon detecting the attack or probe. © Copyright 2010 Trend Micro Inc. www.trendmicro.com All rights reserved. - 65 -
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Intrusion Defense Firewall 1.2 for
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Table Of Contents Introduction ....
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Introduction © Copyright 2010 Tren
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DPI (Deep Packet Inspection) Rules
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Server Plug-in Interface © Copyrig
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Task Pane Clicking an element in th
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Shortcut Menus Many of the IDF Serv
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Click Add/Remove Widgets... at the
Page 17 and 18: Reports IDF Server Plug-in produces
Page 19 and 20: Note that if you apply other settin
Page 21 and 22: The Computer's status will be displ
Page 23 and 24: Computer Details The Computer's Det
Page 25 and 26: Alerts Alerts are displayed the sam
Page 27 and 28: Security Profiles Security Profiles
Page 29 and 30: Firewall (Events, Rules, and Statef
Page 31 and 32: Firewall The information box will t
Page 33 and 34: Interface: The MAC address of the i
Page 35 and 36: Firewall Rules Firewall Rules exami
Page 37 and 38: Options Alert Select whether or not
Page 39 and 40: TCP The Firewall Rule engine, by de
Page 41 and 42: The ICMP (pseudo-)stateful mechanis
Page 43 and 44: DPI Events By default, the IDF Serv
Page 45 and 46: DPI Rules Whereas Firewall Rules an
Page 47 and 48: you which rule on which Computer(s)
Page 49 and 50: Components IP Lists Reusable lists
Page 51 and 52: MAC Lists Use the MAC Lists section
Page 53 and 54: Contexts Contexts are a powerful wa
Page 55 and 56: Schedules Schedules are used by var
Page 57 and 58: System Events The System Event log
Page 59 and 60: System Settings The System > System
Page 61 and 62: example, your network has no DNS an
Page 63 and 64: Firewall and DPI Network Engine Mod
Page 65 and 66: ESTABLISHED Timeout: How long to st
Page 67: Interface Isolation Interface Isola
Page 71 and 72: Notifications Alert Notification (f
Page 73 and 74: System Alert Configuration View Ale
Page 75 and 76: Backup Perform regular database bac
Page 77 and 78: Updates Security Updates Security U
Page 79 and 80: How To... Customize the Dashboard H
Page 81 and 82: Configure Alerts There are just ove
Page 83 and 84: 3. In the "Direction of IDF Server
Page 85 and 86: Set Up Email Alerts IDF Server Plug
Page 87 and 88: 3. Start the " Intrusion Defense Fi
Page 89 and 90: Configure Logging By default, IDF S
Page 91 and 92: Configure Port Scan Settings The ID
Page 93 and 94: click it to view its Details window
Page 95 and 96: Interface Information IP Informatio
Page 97 and 98: System Event Log Format System Even
Page 99 and 100: Backup and Restore IDF Intrusion De
Page 101 and 102: CALL sqlcmd -S localhost\IDF -E -v
Page 103 and 104: Upgrade the Server Plug-in The Offi
Page 105 and 106: Manually Uninstall a Client Plug-in
Page 107 and 108: #Wed Jun 11 16:19:19 EDT 2008 datab
Page 109 and 110: Migrate a Single Managed Computer t
Page 111 and 112: counter3s counter3ports counter3ips
Page 113 and 114: Reference © Copyright 2010 Trend M
Page 115 and 116: managed Computer and the wizard wou
Page 117 and 118: The Inherit checkbox determines whe
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4. In the Properties window, click
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8. The final step in the Firewall s
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Click OK when you're done. Apply th
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Firewall IP Activity (Prevented) Fi
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The FORCE ALLOW rule can be placed
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1. First enable stateful inspection
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Tap Mode IPv6 Packet Max Incoming C
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3602 Windows Service Error 3603 Fil
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Creating and Applying New Firewall
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Creating Custom DPI Rules Trend Mic
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Memory Allocation Error Out Of Orde
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Firewall Events CE Flags Event Note
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Inheritance and Overrides Settings
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In the Properties window for this F
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Required Ports A number of ports mu
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Firewall Rule Sequence Packets arri
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191 Alert Changed 192 Alert Ended 1
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473 DPI Rule Exported 474 DPI Rule
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726 Get Client Plug-in Events Faile
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Privacy Policy Trend Micro, Inc. is
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