Exabeam Fusion SIEM Zero Trust Alert Integration

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Support Statement

DISCLAIMER

This documentation is provided "as is" without support for 3rd party software. The level of support for this integration guide is best effort without any SLA on response time. No 3rd party product support can be provided by Superna directly. 3rd party components require support contracts. See EULA for more details.

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Overview

Customers using Exabeam Fusion SIEM can leverage a native integration that initiates native ingestion API alerts from Security Edition Zero Trust alerts. Customers can augment the capabilities of Exabeam Fusion SIEM with threat intelligence and Cyber Storage capabilities of Superna Security Edition.

Solution Overview

Superna Defender Zero Trust API receives webhook alerts and parses the key data into HTTPS API payload events that are sent to the SIEM collector endpoint URL. Exabeam Fusion SIEM is a modular architecture that provides real-time visibility of your IT infrastructure, which you can use for threat detection and prioritization.

Advanced Zero Trust Capabilities

• Webhook to native HTTPS collector API alarm integration

What Is Exabeam Fusion SIEM?

Exabeam Fusion SIEM provides security analysts and SOC managers with enhanced visibility across the enterprise to thoroughly understand the scope and context of an attack. Streamlined workflows automatically triage alerts to detect known and unknown threats faster.

Integration Architecture

Solution Configuration in Exabeam Fusion SIEM and Defender Zero Trust

Prerequisites

• Installed Security Edition
• Eyeglass OS appliance version 15.5 — verify with cat /etc/os-release
• License key for the Zero Trust API
• Exabeam Fusion SIEM

Configuration in Exabeam Fusion SIEM

1. Log in to Exabeam Fusion SIEM.

2. Follow the Generic Webhook Cloud Collector guide to generate an API token for authentication.

3. Record the API token and the collector endpoint URL for your instance:

   https://api2.<region>.exabeam.cloud/cloud-collectors/v1/logs/json

Configuration Steps on Eyeglass Virtual Machine

High-Level Steps

1. Create the Python location to run the application on the Eyeglass VM.
2. Create the Python main application script.
3. Create the Linux systemd service and set it to auto-start.
4. Create the Zero Trust configuration in Defender.
5. Update the main script to customize it with the Exabeam Fusion SIEM Python code.
6. Test the script is running as a service.
7. Create a test event in Defender to validate alerts appear as indexed parsed events in Exabeam Fusion SIEM.

Configure the Service Start and Python Integration Files

Log in to the Eyeglass VM via SSH as the admin user:

ssh admin@<your-vm-ip>

Become root:

sudo -s

mkdir -p /opt/superna/cgi-bin

chown -R sca:users /opt/superna/cgi-bin

chmod -R u+rwX,g+rwX /opt/superna/cgi-bin

Switch to the SCA user:

sudo -u sca -s

cd /opt/superna/cgi-bin

Create a Python virtual environment for the integration:

python3 -m venv venv-exabeam

source venv-exabeam/bin/activate

Install required Python packages:

pip install flask boto3 requests logging

deactivate

Create integration script files:

touch exabeam.py

touch exabeam.sh

chmod +x exabeam.py

chmod +x exabeam.sh

Create the exabeam.sh launch script:

nano /opt/superna/cgi-bin/exabeam.sh

Paste the following content into the file:

#!/bin/bash

export PATH="/opt/.pyenv/bin:$PATH"

source /opt/superna/cgi-bin/venv-exabeam/bin/activate

exec python /opt/superna/cgi-bin/exabeam.py

Make the script executable:

chmod +x /opt/superna/cgi-bin/exabeam.sh

Exit back to root:

exit

whoami # confirm you are root

Create the systemd service unit file:

nano /etc/systemd/system/exabeam.service

Paste the following content into the file:

[Unit]
Description=Webhook listener for Zero Trust API translations and integrations
After=network.target

[Service]
Type=simple
User=sca
Group=users
WorkingDirectory=/opt/superna/cgi-bin
ExecStart=/bin/bash /opt/superna/cgi-bin/exabeam.sh
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target

Reload systemd to register the new service:

systemctl daemon-reload

Enable the service to start on boot (do not start it yet):

systemctl enable exabeam

Configure Python Packages and Customize the Integration Code

1. Download the Python template code from the link to download.

2. Open the Python template file in a text editor. Only replace the placeholder values — do not delete any commas.

3. Locate the following section and replace the placeholder values with your Exabeam endpoint URL and API token:

   exabeam_URL = ""
   exabeam_api_token = ""

4. Open the production file on the Eyeglass VM:

   nano /opt/superna/cgi-bin/exabeam.py

5. Open the template file locally in Notepad, select all (Ctrl+A), and copy.

6. Paste the clipboard into the SSH terminal session with the open nano editor.

7. Save the file:

   • Press Ctrl+X
   • Answer Yes to save and exit

8. Start the service and verify it is running:

   systemctl start exabeam
   
   systemctl status -l exabeam

   Verify the service returns "active and running". If the service does not start, do not proceed — double-check the steps above.

Configure Defender Zero Trust Webhooks

1. Configure the Zero Trust endpoint in the Ransomware Defender Zero Trust tab.

   Recommended Configuration

   Send only Critical and Major events, and only webhooks that set lockout or delayed lockout. The goal is to send findings rather than a list of alarms that do not pinpoint a security incident. Customers can customize based on specific requirements.

2. The endpoint URL uses localhost and sends webhooks to the application service listening on port 5000:

   http://localhost:5000/webhook

3. Add the following headers to complete the webhook configuration:

   • Content-Type: application/json
   • content-encoding: gzip

4. Click Save to commit the configuration.

5. Click Save on the main Webhook configuration page.

How to Test the Integration with Exabeam Fusion SIEM

1. Get the IP address of the Eyeglass VM.
2. Download the curl command template and open it with a text editor. Locate the IP address of Eyeglass at the very end of the text and replace it with the IP address of your Eyeglass VM.
3. Copy all the text in the text editor.
4. SSH to the Eyeglass VM as the admin user.
5. Paste the entire CLI command to the SSH prompt to send sample data to the running Zero Trust application. This sends test data directly to the application to be processed and sent to Exabeam Fusion SIEM.

A successfully processed webhook test returns the following text in the SSH terminal:

done sending event to exabeam and check for http 200 and success count in response

To review the process logs from the web application:

sudo -s

journalctl -f -u exabeam

To log to a file and review with nano, showing only the most recent 250 lines:

journalctl -f -n 250 -u exabeam > /tmp/exabeam.log

nano /tmp/exabeam.log

The response code from the Exabeam Fusion SIEM API call should show HTTP 200 status code and successCount 1 to indicate the event was successfully created.

Exabeam Fusion SIEM SecOps Administrators Integration Experience

Once the integration is complete, parsed results are available in the Exabeam Fusion SIEM console after an alert is sent to the collector endpoint URL and parsed.