Introduction to SOAR: Automating Your Security Operations

Wylie Bayes

• 2 min read

Welcome to the Defensive Cyber (Blue Team) section of the blog! Thus far, we have explored how attackers breach networks, evade detection, and move laterally. Now, we shift our focus to the defenders.

One of the greatest challenges facing modern Security Operations Centers (SOCs) is alert fatigue. Security Information and Event Management (SIEM) platforms, EDRs, and firewalls generate thousands of alerts a day. Human analysts physically cannot triage, investigate, and respond to every single one. The inevitable result is burnout and missed breaches.

The solution to this data deluge is Security Orchestration, Automation, and Response (SOAR). In this post, we will explore what SOAR is and how it transforms reactive SOCs into proactive defense powerhouses.

What is SOAR?

SOAR is a stack of compatible software programs that allow an organization to collect data about security threats from multiple sources and respond to low-level security events without human assistance.

It breaks down into three core components:

1. Orchestration

A modern SOC uses dozens of different tools: Splunk for logs, CrowdStrike for endpoints, Palo Alto for firewalls, and Proofpoint for email. Historically, these tools didn't talk to each other.

Orchestration acts as the connective tissue. Through API integrations, a SOAR platform (like Cortex XSOAR, Splunk SOAR, or Tines) allows all of these disparate security tools to communicate in a centralized hub.

2. Automation

Automation takes the manual, repeatable tasks away from the analysts. Instead of an analyst copying an IP address from the SIEM, opening VirusTotal in a browser, pasting the IP, and recording the result, the SOAR platform does it automatically in milliseconds.

This is achieved through Playbooks—visual, logic-based workflows that define exactly how to handle a specific type of alert.

3. Response

Once the data is gathered and analyzed, the SOAR platform can take action. It can quarantine a machine, suspend an Active Directory user account, or delete a malicious email from an inbox, all before a human analyst even opens the ticket.

A Practical Example: The Phishing Playbook

To understand the power of SOAR, let's look at how a SOC handles a reported phishing email with and without automation.

Without SOAR (The Manual Way):

  1. A user forwards a suspicious email to [email protected].
  2. An analyst opens the ticket (Time: 10 mins later).
  3. The analyst extracts the URLs and file attachments (Time: +5 mins).
  4. The analyst uploads the file to a sandbox and checks the URL on Threat Intelligence platforms (Time: +10 mins).
  5. The results come back malicious. The analyst logs into the email gateway to delete the email from all inboxes (Time: +5 mins).
  6. The analyst logs into the EDR to isolate the user's laptop (Time: +5 mins).
    Total Time to Containment: ~35 Minutes.

With SOAR (The Automated Way):

  1. The user forwards the email. The SOAR platform automatically ingests it.
  2. The SOAR parses the URLs and file hashes automatically via API.
  3. The SOAR queries VirusTotal and CrowdStrike Falcon Intelligence.
  4. The Threat Intel returns a "Malicious" verdict.
  5. The SOAR playbook logic dictates: If malicious, automatically purge from Office 365 and quarantine the endpoint via EDR.
  6. The SOAR executes the containment actions and updates the ticket with all findings, notifying the analyst that the threat is neutralized.
    Total Time to Containment: ~30 Seconds.

The Benefits and Pitfalls of SOAR

The benefits are obvious: drastically reduced Mean Time to Respond (MTTR), eliminated repetitive tasks, and allowing analysts to focus on complex, high-level threat hunting rather than copy-pasting data.

However, deploying SOAR is not a silver bullet.

  • Garbage In, Garbage Out: If your SIEM is feeding noisy, poorly tuned false positives into your SOAR, your SOAR will just automate the chaos, potentially locking legitimate users out of the network automatically.
  • Maintenance Overhead: APIs change. Playbooks break. A SOAR platform requires dedicated automation engineers to constantly maintain and update the integrations.

Conclusion

Automation is no longer a luxury for enterprise security teams; it is a necessity for survival. By orchestrating tools and automating the triage of high-volume, low-complexity alerts, SOAR empowers Blue Teams to fight at machine speed.