This section dives into the techniques and mechanisms of code injection, a common tactic used by malware to manipulate processes. It starts with an introduction to the concept of code injection and its relevance in cybersecurity. Lessons cover the classification of various injection methods, including their characteristics and use cases. The section provides an in-depth exploration of process injection techniques, such as CreateRemoteThread, which allows injecting code into remote processes, and Process Hollowing, a method for replacing legitimate code with malicious payloads. These techniques are broken down into practical steps, with examples and tools to help students identify, analyze, and counteract such methods. By the end, students gain valuable skills to detect and understand code injection, a critical component of advanced malware analysis.