Linux EDR Telemetry Project: Insights and Results

2025-02-11

The Linux EDR Telemetry Project has finally released its results, showcasing how well Endpoint Detection and Response (EDR) solutions handle Linux visibility. This project, which involved months of testing and collaboration, provides valuable insights into the effectiveness of various EDR tools in monitoring Linux environments.

Key Findings

The project evaluated multiple EDR solutions, focusing on their ability to provide visibility into Linux systems. The results highlight the strengths and weaknesses of each tool, offering a comprehensive comparison that can help organizations choose the right solution for their needs.

Practical Commands and Codes

To leverage the insights from this project, here are some practical Linux commands and techniques that can enhance your monitoring and security posture:

1. Auditd for System Monitoring

Auditd is a powerful tool for monitoring system calls and file access. Install and configure it using:

sudo apt-get install auditd
sudo systemctl enable auditd
sudo systemctl start auditd

Example rule to monitor file access:

sudo auditctl -w /etc/passwd -p rwxa -k passwd_access

2. Syslog for Log Management

Syslog is essential for centralized logging. Configure it to send logs to a remote server:

sudo nano /etc/rsyslog.conf

Add the following line to forward logs:

<em>.</em> @<remote-server-ip>:514

Restart the service:

sudo systemctl restart rsyslog

3. Linux Process Monitoring

Use `ps` and `top` to monitor running processes:

ps aux | grep <process-name>
top

4. File Integrity Monitoring with AIDE

AIDE (Advanced Intrusion Detection Environment) helps detect changes in files:

sudo apt-get install aide
sudo aideinit
sudo mv /var/lib/aide/aide.db.new /var/lib/aide/aide.db
sudo aide.wrapper --check

5. Network Monitoring with tcpdump

Capture network traffic for analysis:

sudo tcpdump -i eth0 -w capture.pcap

What Undercode Say

The Linux EDR Telemetry Project underscores the importance of robust monitoring and visibility in Linux environments. As Linux continues to grow in enterprise environments, ensuring effective security monitoring is critical. The project’s findings reveal that while some EDR solutions excel in Linux visibility, others lag behind. This highlights the need for organizations to carefully evaluate their EDR tools and consider supplementing them with native Linux monitoring solutions.

To further enhance your Linux security posture, consider implementing the following additional practices:

  • Enable SELinux or AppArmor for mandatory access control:
    sudo setenforce 1 # For SELinux
    sudo aa-enforce /path/to/profile # For AppArmor
    

  • Use Fail2Ban to protect against brute-force attacks:

    sudo apt-get install fail2ban
    sudo systemctl enable fail2ban
    sudo systemctl start fail2ban
    

  • Regularly Update and Patch Systems:

    sudo apt-get update && sudo apt-get upgrade -y
    

  • Monitor User Activity with `last` and who:

    last
    who
    

  • Implement Two-Factor Authentication (2FA) for SSH:

    sudo apt-get install libpam-google-authenticator
    google-authenticator
    

For more detailed insights, refer to the full blog and results:
Linux EDR Telemetry Project Blog
Linux Results
Scores

By combining the findings of this project with practical Linux commands and tools, organizations can significantly improve their ability to monitor and secure Linux systems.

References:

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