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Post-ExploitationData Exfiltration

Covert Channels

35 min
lab
+80 XP

Learning Objectives

  • Understand the fundamentals of covert channels
  • Apply covert channels techniques in real scenarios
  • Document findings and develop practical skills

Covert Channels

This lesson covers covert channels, an important topic in the Data Exfiltration module.

Understanding the Topic

Core principles forms the foundation of this topic. In real-world scenarios, attackers leverage this knowledge to identify weaknesses that defenders often overlook. Understanding how covert channels works at a fundamental level is essential before attempting any practical exercises.

Building on that foundation, common attack vectors becomes critically important. Security professionals encounter this daily, and recognizing the patterns helps you work more efficiently during assessments.

Defense considerations represents another key consideration. Many beginners overlook this aspect, but experienced practitioners know it can make the difference between success and failure in real engagements.

Finally, industry best practices provides the practical context. Knowing when and how to apply these techniques separates theoretical knowledge from actionable skills.

Tools and Environment

For covert channels, professionals rely on Various security tools available in the sandbox. The sandbox terminal on the right provides access to these tools. Familiarize yourself with their basic usage, then answer the questions below to complete this lesson.

Answer the Questions0 / 4 completed

📚 KnowledgeQuestion 1

What covert channels exist?

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⌨️ Hands-OnQuestion 2

What command sends ICMP Echo requests?

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📚 KnowledgeQuestion 3

How do DLP systems detect exfil?

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⌨️ Hands-OnQuestion 4

What prevents DLP from reading exfiltrated data?

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Interactive Sandbox

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