Application Layer Protocols for C2 and Data Exfiltration

To protect modern networks, security professionals must understand how adversaries abuse standard communication channels to control systems and steal data. This text-only course offers a clear, foundational introduction to application layer protocols used in command and control (C2) and data exfiltration. You will learn the mechanics behind covert communications and how to identify suspicious patterns in network traffic. \n\nWhat you'll learn: \n- Understand the core concepts of command and control (C2) architectures and exfiltration pathways. \n- Analyze how common application layer protocols like HTTP, HTTPS, and DNS are utilized for covert communication. \n- Examine how data is transferred to cloud storage and external endpoints using standard web APIs. \n- Learn key traffic analysis concepts to distinguish normal protocol behavior from malicious activity. \n- Explore modern detection frameworks and basic threat hunting principles to defend network perimeters. \n\nThe course begins with foundational definitions of network protocols before guiding you through conceptual scenarios of protocol abuse and defensive monitoring strategies. This course is designed for beginner security analysts, network administrators, and anyone interested in understanding modern network defense. Start reading today to build your foundational knowledge of protocol security.