Install the Cortex XDR Agent Manually - Administrator Guide - 7.9 - 7.8 - Cortex XDR - Cortex XDR Agent - Advanced Endpoint Protection - Cortex - Security Operations

Cortex XDR Agent Administrator Guide

Product
Cortex XDR
Cortex XDR Agent
Version
7.8
Creation date
2022-08-31
Last date published
2023-04-30
End_of_Life
EoL
Category
Administrator Guide

To install the Cortex XDR agent manually on a macOS endpoint:

  1. Download the installation package you want to install from Cortex XDR.

  2. Copy the installation package to the endpoint on which you want to install the Cortex XDR agent software.

  3. Unzip the installation package.

  4. (Optional) Configure a Cortex XDR agent specific proxy on the endpoint.

    If you are deploying Cortex XDR in an environment where the agents communicate with Cortex XDR through a proxy, you must assign the proxy IP address and port number during the agent installation on the endpoint.

    Note

    The Cortex XDR agent does not support proxy communication in environments where proxy authentication is required.

    1. Locate the Config.xml file in the unzipped installation folder.

    2. Edit the <proxy_list><proxyserver>:<port></proxy_list> tag.

      • To enforce a proxy specific to the Cortex XDR agent, enter your proxy IP address and port number. You can also configure the proxy by entering the FQDN and port number. When you enter the FQDN, you can use both lowercase and uppercase letters. Avoid using special characters or spaces. You can assign up to five different IP addresses per agent, and the proxy for communication is selected randomly with equal probability.

        <proxy_list>My.Network.Name:808,10.196.20.244:8080</proxy_list>

      • To install an agent communicating through the Palo Alto Networks Broker Service, enter only the broker VM IP address and port number 8888.

    3. If needed, you can later change the proxy settings from the Cortex XDR management console.

  5. (Optional) Disable Live Terminal, script execution, and file retrieval on the endpoint

    You can permanently disable the option for Cortex XDR to perform all, or a combination, of the following actions on endpoints running a Cortex XDR agent: initiate a Live Terminal remote session on the endpoint execute Python scripts on the endpoint, and retrieve files from the endpoint to Cortex XDR. Disabling any of these payloads in the Config.xml file is an irreversible action, so if you later want to enable the action on the endpoint, you must uninstall your Cortex XDR agent and install a new agent with the corresponding values in the Config.xml file.

    1. Locate the Config.xml file in the unzipped installation folder.

    2. Enter the value 1 for this tag, as follows: <restrict_invasive_response_actions>1</restrict_invasive_response_actions>.

      • To disable a specific action, update only the value of the relevant tag:

        <restrict_live_terminal>1</restrict_live_terminal> <restrict_script_execution>1</restrict_script_execution> <restrict_file_retrieval>1</restrict_file_retrieval>

  6. (Optional) Add tags to the endpoint tag list.

    1. Locate the Config.xml file in the unzipped installation folder.

    2. Add<endpoint_tags>tag1,tag2,tag3</endpoint_tags> to the file and save.

  7. Install the Cortex XDR agent software.

    1. Locate the Config.xml file in the unzipped installation folder.

      CortexMacOs_Install01.png
    2. Click Continue to proceed with the installation.

    3. If prompted to confirm the destination, click Continue.

    4. Click Install to begin the installation.

      CortexMacOs_Install02.png
    5. Enter the User Name and Password of the administrator with access to install software on the endpoint, and then click Install Software.

    6. Wait for the Cortex XDR agent installation to complete.

      CortexMacOs_Install03.png

      Tip

      The Cortex XDR agent logs any installation errors to /var/log/install.log. If installation fails for any reason, you can view this log to better understand the cause of the installation failure.

  8. (macOS 10.15 and later versions) Approve Cortex XDR System Extensions.

    1. When you are installing the Cortex XDR agent 7.2.1 or a later release on an endpoint running macOS 10.15.4 or later, this warning displays twice: first for the Security Extension and then for the Network Extension. However, in both warnings, the operating system displays System Extension Blocked.

      CortexMacOs_Install04.png

      Select Open Security Preferences.

      CortexMacOs_Install05.png
    2. Go to System Preferences → Security & Privacy → General, and click Details.

    3. Select both Cortex XDR System Extensions and click OK to allow them. Ignore the message informing that The system needs to be restarted before it can be used since this step is not required.

      CortexMacOs_Install06.png

      Note

      (macOS 10.15 only) In this macOS release, instead of the actual application name Cortex XDR, you will see Placeholder Developer.

      CortexMacOs_Install06_macOS10.15.png
    4. (macOS 10.15.4 and later and a Cortex XDR agent 7.2.1 and later) Approve Cortex XDR Web Content Filter.

      CortexMacOs_Install07.png

      Click Allow to enable the Cortex XDR agent to monitor network events.

      Warning

      If you dismiss this notification, the Cortex XDR agent does not monitor the network traffic on the endpoint, and cannot report network events back to Cortex XDR. Consequently, BIOC and BIOC to Behavioral Threat Protection (BTP) rules you have for network events will not work, and you will not be able to query about network events in the Query builder. For Cortex XDR agent 7.3 and later, network isolation will not work as well.

  9. (macOS 10.15 and later versions) Grant full disk access.

    Due to changes in the security settings of macOS 10.15, you must allow the Cortex XDR agent full disk access on your endpoint to enable full protection. If you do not authorize the agent full disk access on your endpoint, the agent provides only partial protection of files in the /Applications directory. The first time the agent detects an attempt to run an executable file located in another protected location on the endpoint as part of the anti-malware flow, macOS will deny the Cortex XDR agent access and prompts the user to grant full disk access.

    CortexMacOs_Install09.png

    To grant the Cortex XDR agent full disk access locally on the endpoint:

    1. Go to System Preferences → Security & Privacy tab, and select Full Disk Access.

    2. To make changes, click lock icon on the bottom left, enter your credentials, and Unlock.

    3. Navigate to Macintosh HD → Library → Application Support → PaloAltoNetworks → Traps → bin.

    4. Select pmd and drag it to the list.

    5. Navigate to Macintosh HD → Applications → Cortex XDR.app (Show Package Contents) → Contents → Library → SystemExtensions.

    6. Select com.paloaltonetworks.traps.securityextension.systemextension and drag it to the list.

      CortexMacOs_Install10.png
    7. When you’re done, click to save your changes and stop editing.

  10. (macOS 10.15 and later versions) Approve Cortex XDR agent notifications.

    1. After you install the Cortex XDR agent on the endpoint, the operating system will prompt a system notification requesting permissions to show Cortex XDR agent notifications.

      CortexMacOs_Install12.png
    2. Click Options, and then click Allow.

      CortexMacOs_Install13.png
    3. If the system notification is no longer visible, you can approve permissions in System Preferences → Notifications. Select Cortex XDR agent and click Allow Notifications.

      CortexMacOs_Install14.png
  11. Verify the Cortex XDR agent connection and protection status.

    1. To open the Cortex XDR agent console, click the agent icon in the menu bar, and select Open Console.

    2. Click Check In Now to initiate a connection with your Cortex XDR tenant. If successful, the Protection Status field updates to display Enabled, the Connection field updates to display your Cortex XDR tenant, and the Last Check In field updates to display the last check in date and time.

      CortexMacOs_Install11.png

      Warning

      If the Cortex XDR agent does not connect to Cortex XDR, verify your internet connection and check the Cortex XDR Agent for Mac Requirements. If the agent still does not connect, contact Palo Alto Networks support.