<<USE COURIER REGULAR 10 FONT IF YOU WOULD LIKE TO PRINT THIS DOCUMENT>>

  Trend Micro Incorporated                               August 12, 2020
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                  Trend Micro(TM) IM Security 1.6.5 - GM
                     for English - Windows - 64 Bits
                      Critical Patch - Build 2103
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


     
     Contents
     ==========================================================

     1.  Overview of This Critical Patch Release

         1.1 Issues

         1.2 Files Included in This Release

     2.  Documentation Set

     3.  System Requirements

     4.  Installation

         4.1 Installing

         4.2 Uninstalling

     5.  Post-installation Configuration

     6.  Known Issues

     7.  Release History

     8.  Contact Information

     9.  About Trend Micro

     10. License Agreement

     ==========================================================

1. Overview of This Critical Patch Release
========================================================================

   1.1 Issues
   =====================================================================
   This critical patch resolves the following issues: 

    
   Issue 1:      A directory traversal vulnerability may occur while
                 IM Security downloads engine files or pattern files 
                 from the local ActiveUpdate (AU) server.
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Solution 1:   This critical patch updates Trend Micro Active Update
                 modules to fix this known issue.


   1.2 Files Included in This Release
   =====================================================================

   A. Files for Current Issue 
   ---------------------------------------------------
      Filename                         Build No.
      ------------------------------------------------
      [IM Security\ActiveUpdate]
      Build64.exe                      2.86.0.1113
      cert5.db                         n/a
      ciuas64.dll                      1.0.0.2075
      ciussi64.dll                     2.0.0.2074
      expapply64.dll                   8.4.2.0
      expbuild64.dll                   8.4.2.0
      icrcauapi.dll                    2.5.0.1115
      liblwtpciu64.dll                 1.0.0.1005
      patch64.exe                      2.86.0.1113
      patchw64.dll                     12.22.0.0
      pbld64.dll                       12.20.0.0
      psmc64.dll                       8.4.2.0
      TmUpdate64.dll                   2.86.0.1113
      x500.db                          n/a
    
   B. File for Previous Issues 
   ---------------------------------------------------
      Not applicable.
 

2. Documentation Set
========================================================================
   To download or view electronic versions of the documentation set for 
   this product, go to http://docs.trendmicro.com

   In addition to this Readme file, the documentation set for this 
   product includes the following:

   - Online Help: The Online Help contains an overview of features
     and key concepts, and information on configuring and
     maintaining product.
     
     To access the Online Help, go to http://docs.trendmicro.com

   - Installation Guide (IG): The Installation Guide contains
     information on requirements and procedures for installing and
     deploying product. 
     
   - Administrator's Guide (AG): The Administrator's Guide contains
     an overview of features and key concepts, and information on
     configuring and maintaining product.

   - Getting Started Guide (GSG): The Getting Started Guide
     contains product overview, installation planning, installation
     and configuration instructions, and basic information intended
     to get product 'up and running'. 

   - Support Portal: The Support Portal contains information on
     troubleshooting and resolving known issues.

     To access the Support Portal, go to https://success.trendmicro.com


3. System Requirements
========================================================================
   1. Trend Micro IM Security 1.6.5 – GM - English - Windows - x64


4. Installation
========================================================================
   This section explains key steps for installing the critical patch.

   4.1 Installing
   =====================================================================
    
   To install:
    
   1. Copy the self-extracting file
      "imsecurity_165_win_en_criticalpatch1_b2103.zip" to a local 
      folder.

   2. Run the "imsecurity_165_win_en_criticalpatch1_b2103.exe" file.

   3. In the setup screen, click "Install" and follow the on-screen
      instructions to complete the installation.
    
   The "Installation successful!" message appears after the system
   completes the installation.
    
   The following services restart automatically:
   * Trend Micro IM Security Server
   * Trend Micro IM Security System Attendant

   4.2 Uninstalling
   =====================================================================
   To roll back to the previous build:
   
   1. Open the Registry Editor.

   2. Click "Start > Run".

   3. Type "REGEDIT" and press "Enter".

   4. Take note of the "Backup Dir" value in the registry key:
      "\HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\IM
      Security\Hotfix\IM Security 1.6.5 Critical Patch 1\" 
      A typical value would be: "C:\Program
      Files\Trend Micro\IM Security\HotFix\B-2103".

   5. Run "Uninstall.bat" in the backup folder to start the
      rollback. The "Remove installation successful" message appears
      after the rollback completes.

   6. Click "OK". 

   NOTE: Register online with Trend Micro within 30 days of
   installation to continue downloading new pattern files and product
   updates from the Trend Micro website. Register during installation
   or online at: http://olr.trendmicro.com/ 
    
   The "Uninstallation success!" message appears after 
   the system completes the uninstallation.


5. Post-Installation Configuration
========================================================================
   No post-installation steps are required.

   NOTE: Trend Micro recommends that you update your scan engine and
   virus pattern files immediately after installing the product.


6. Known Issues
========================================================================
   There are no known issues for this critical patch release.

    
7. Release History
========================================================================
   For more information about updates to this product, go to:

   http://www.trendmicro.com/download


8. Contact Information  
========================================================================
   A license to Trend Micro software usually includes the right to
   product updates, pattern file updates, and basic technical support
   for one (1) year from the date of purchase only. After the first
   year, you must renew Maintenance on an annual basis at Trend Micro's
   then-current Maintenance fees.

   Contact Trend Micro via fax, phone, and email, or visit our website
   to download evaluation copies of Trend Micro products.

   https://www.trendmicro.com/en_us/contact.html

   NOTE: This information is subject to change without notice.
         

9. About Trend Micro  
========================================================================
   Smart, simple, security that fits

   As a global leader in IT security, Trend Micro develops innovative
   security solutions that make the world safe for businesses and
   consumers to exchange digital information.

   Copyright 2020, Trend Micro Incorporated. All rights reserved.

   Trend Micro and the t-ball logo are trademarks of Trend Micro 
   Incorporated and are registered in some jurisdictions. All other 
   marks are the trademarks or registered trademarks of their 
   respective companies.


10. License Agreement  
========================================================================
    View information about your license agreement with Trend Micro at: 
    https://www.trendmicro.com/en_us/about/legal.html

    Third-party licensing agreements can be viewed:
    - By selecting the "About" option in the application user interface
    - By referring to the "Legal" page of the Administrator's Guide 




