Contents

TDR & Avira

Deployment Overview

Threat Detection and Response (TDR) is a collection of advanced malware defense tools that correlate threat indicators from Fireboxes and Host Sensors to enable real-time, automated response to stop known, unknown, and evasive threats.

As part of the TDR solution, you install TDR Host Sensors to provide endpoint protection. In some cases, the TDR Host Sensor might have conflicts with the antivirus software installed on your endpoints. To resolve this issue, you can configure exclusions in the antivirus software and in TDR.

This document includes information about the integration of a TDR Host Sensor with a host that runs Avira. It does not describe the procedure to set up Threat Detection and Response. For information about how to set up your TDR account, how to enable TDR on a Firebox, and how to install a Host Sensor, see Quick Start — Set Up Threat Detection and Response.

Integration Summary

To avoid conflicts between the TDR Host Sensor and Avira Antivirus, add these exclusions:

  • Exclusions in TDR for Avira Antivirus — For Windows:
    • C:\ProgramData\Avira\Antivirus\
    • 64-bit Windows — C:\Program Files (x86)\Avira\Antivirus\
    • 32-bit Windows — C:\Program Files\Avira\Antivirus\
  • Exclusions in TDR for Avira Antivirus — For Mac:
    • /Applications/Avira.app/
    • /Library/Application Support/Avira/
    • /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/*.activeSandbox/Root/Applications/Utilities/Avira-Uninstall.app/
    • /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/*.activeSandbox/Root/Applications/Utilities/Avira/
    • /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/*.activeSandbox/Root/Applications/Avira.app/
    • /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/*.activeSandbox/Root/Applications/Utilities/Avira
  • Exclusions in Avira Antivirus for the TDR Host Sensor — For Windows:
    • 64-bit Windows — C:\Program Files (x86)\WatchGuard\Threat Detection and Response\
    • 32-bit Windows — C:\Program Files\WatchGuard\Threat Detection and Response\
  • Exclusions in Avira Antivirus for the TDR Host Sensor — For Mac:
    • /usr/local/watchguard

If the Host Sensor and Avira Antivirus detect and respond to a threat at the same time, this can cause high utilization of system resources such as CPU, memory, and disk I/O.

Configuration Details

To complete this deployment, you must have:

  • An active Threat Detection and Response subscription with Host Sensor licenses
  • Avira Antivirus - Business Edition:
    • Avira Antivirus 1.2.133.21088

The TDR and Fireware versions tested for this deployment included:

  • TDR Host Sensor 5.6.3.8764
  • Firebox with Fireware v12.3 or higher

The Windows test environment for this deployment included:

  • Windows 7, 8.1, 10 Enterprise 64-bit Operating System
  • Memory (RAM) — 8 GB
  • Processor — 2 CPU Cores

The Mac test environment for this deployment included:

  • macOS 10.13
  • Memory (RAM) — 8 GB
  • Processor — Intel Core i5

Configure Exclusions in TDR

In your TDR account, you add exclusions to manually identify paths for files and processes that you do not want Host Sensors to monitor. Before you deploy a Host Sensor on computers that have Avira Antivirus installed, add exclusions for the Avira Antivirus file paths as TDR Exclusions in your TDR account.

In your TDR account, add the TDR exclusions for the paths shown in the Integration Summary.

Unless otherwise noted, configure each TDR exclusion with these options, which are selected by default:

  • Also exclude subfolders
  • Entities to exclude: Files and Processes

To add an exclusion in TDR:

  1. Log in to your TDR account or managed account as a user with Operator privileges.
  2. Select Configuration > Exclusion.
  3. Click Add Exclusion.
    The Add Exclusion dialog box appears.
  4. In the Path text box, type the path to exclude. Folders specified in an exclusion must end with a backslash.
  5. To apply the exception to all hosts, in the Hosts / Groups text box, specify the group All Hosts.
  6. Click Save & Close.

Repeat these steps to add each exclusion.

Configure Exclusions in Avira Antivirus

In Avira Antivirus add the exclusions to identify the paths for files and locations to exclude. To prevent conflicts between the Host Sensor and Avira Antivirus, we recommend you add exclusions in Avira Antivirus for the paths used by the TDR Host Sensor.

To exclude directories used by the TDR Host Sensor, add the exclusions for the paths listed in the Integration Summary.

To add an exclusion in Avira Antivirus for Windows:

  1. Open Avira Antivirus.
  2. From the left corner, select the Settings icon.
  3. From the left panel, select Exceptions.
    The Exception page appears on the right.
  4. In the Files and Folders to be ignored by System Scanner and Real-Time Protection section, click Browse. Select the paths to exclude.
  5. Click OK.

To add an exclusion in Avira Antivirus for macOS:

  1. Select Finder > Go > Utilities and double-click Terminal.
  2. Type the command to open Avira Real-Time Protection configuration file:
    sudo nano /Applications/Avira.app/Contents/config/avguard.conf
  3. Authenticate with your password (with administrative privileges) to continue with the configuration.
  4. Add the path of the folder that should not be monitored by the Avira Real-Time Protection:
    ExcludePath /usr/local/watchguard
  5. To close the configuration, press CTRL+X on your keyboard.
  6. Type Y and press Enter.
  7. Restart your Mac.
    The changes do not take effect until you have restarted your Mac.

The results of this testing might also apply to these products, which were not tested:

  • Avira Antivirus Pro

For information about the integration testing methodology, see TDR Testing Methodology.

In Windows 7, Avira's Web Protection sometimes shuts down when the system updates. This behavior has nothing to do with TDR.

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