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Remediation Suggestions is a feature of Cortex XDR that provides you with recommended actions to remediate the root cause and impact of an incident. Remediation Suggestions are based on the analysis of the causality chain, the behavior of the malicious files or processes, and the best practices for incident response. Remediation Suggestions can help you to quickly and effectively contain and resolve an incident, as well as prevent future recurrence.

To activate Remediation Suggestions, you need to follow these steps:

In the Cortex XDR management console, go to Incidents and select an incident that you want to remediate.

Click Causality View to see the graphical representation of the causality chain of the incident.

Click Actions and select Remediation Suggestions. This will open a new window that shows the suggested actions for each node in the causality chain.

Review the suggested actions and select the ones that you want to apply. You can also edit or delete the suggested actions, or add your own custom actions.

Click Apply to execute the selected actions on the affected endpoints. You can also schedule the actions to run at a later time or date.

 Live terminal uses Python 3 with standard Python libraries to run Python commands and scripts on the endpoint. Live terminal does not support Python 2 or any custom or external Python libraries. Live terminal uses the Python interpreter embedded in the Cortex XDR agent, which is based on Python 3.7.4. The standard Python libraries are the modules that are included with the Python installation and provide a wide range of functionalities, such as operating system interfaces, network programming, data processing, and more. You can use the Python commands and scripts to perform advanced tasks or automation on the endpoint, such as querying system information, modifying files or registry keys, or running other applications. References:

Run Python Commands and Scripts

Python Standard Library

The Broker VM is a virtual machine that you can deploy in your network to provide various services and functionalities to the Cortex XDR agents. One of the services that the Broker VM offers is the Local Agent Settings applet, which allows you to configure the agent proxy, agent installer, and content caching settings for the agents. The Local Agent Settings applet can support a maximum number of 10,000 agents per Broker VM. If you have more than 10,000 agents in your network, you need to deploy additional Broker VMs and distribute the load among them. References:

Broker VM Overview: This document provides an overview of the Broker VM and its features, requirements, and deployment options.

Configure the Broker VM: This document explains how to install, set up, and configure the Broker VM in an ESXi environment.

Manage Broker VM from the Cortex XDR Management Console: This document describes how to activate and manage the Broker VM applets from the Cortex XDR management console.

 The output shows the top 10 hosts with the most malware in the last 30 days, based on the Cortex XDR data. The output is sorted by the number of incidents, with the host with the most incidents at the top. The output also shows the number of alerts, the number of endpoints, and the percentage of endpoints for each host. The output is generated by using the ACC (Application Command Center) feature of Cortex XDR, which provides a graphical representation of the network activity and threat landscape. The ACC allows you to view and analyze various widgets, such as the Top 10 hosts with the most malware, the Top 10 applications by bandwidth, the Top 10 threats by count, and more .

The kind of malware that uses encryption, data theft, denial of service, and possibly harassment to take advantage of a victim is ransomware. Ransomware is a type of malware that encrypts the victim’s files or blocks access to their system, and then demands a ransom for the decryption key or the restoration of access. Ransomware can also threaten to expose or delete the victim’s data if the ransom is not paid. Ransomware can cause significant damage and disruption to individuals, businesses, and organizations, and can be difficult to remove or recover from. Some examples of ransomware are CryptoLocker, WannaCry, Ryuk, and REvil.

The Agent Installer and Content Caching applet of the Broker VM is used to download and cache the Cortex XDR agent installation packages and content updates from Palo Alto Networks servers. This applet also acts as a proxy server for the Cortex XDR agents to communicate with the Cortex Data Lake and the Cortex XDR management console. To ensure secure communication between the Broker VM and the Cortex XDR agents, you are required to install a strong cipher SHA256-based SSL certificate on the Broker VM. The SSL certificate must have a common name or subject alternative name that matches the Broker VM FQDN or IP address. The SSL certificate must also be trusted by the Cortex XDR agents, either by using a certificate signed by a public CA or by manually installing the certificate on the endpoints. References:

Agent Installer and Content Caching

Install an SSL Certificate on the Broker VM

 Live terminal session is a feature of Cortex XDR that allows you to remotely access and control endpoints from the Cortex XDR console. With live terminal session, you can execute various actions on the endpoints, such as:

Manage Processes: You can view, start, or kill processes on the endpoint, and monitor their CPU and memory usage.

Manage Files: You can view, create, delete, or move files and folders on the endpoint, and upload or download files to or from the endpoint.

Run Operating System Commands: You can run commands on the endpoint using the native command-line interface of the operating system, such as cmd.exe for Windows, bash for Linux, or zsh for macOS.

Run Python Commands and Scripts: You can run Python commands and scripts on the endpoint using the Python interpreter embedded in the Cortex XDR agent. You can use the Python commands and scripts to perform advanced tasks or automation on the endpoint.