Course 25 - API Python Hacking | Episode 2: Foundations of Windows Internals and API Mechanisms Titelbild

Course 25 - API Python Hacking | Episode 2: Foundations of Windows Internals and API Mechanisms

Course 25 - API Python Hacking | Episode 2: Foundations of Windows Internals and API Mechanisms

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 In this lesson, you’ll learn about:
  • Fundamentals of Windows Processes and Threads
    • A process is a running program with its own virtual memory space
    • Threads are units of execution inside processes, allocated CPU time to perform tasks
    • Access tokens manage privileges and access rights; privileges can be enabled, disabled, or removed but cannot be added to an existing token
  • Key System Programming Terminology
    • Handles: Objects that act as pointers to memory locations or system resources
    • Structures: Memory formats used to store and pass data during API calls
  • Windows API Mechanics
    • How applications interact with the OS via user space → kernel space transitions
    • Anatomy of an API call, including parameters and naming conventions:
      • "A" → Unicode version
      • "W" → ANSI version
      • "EX" → Extended or newer version
  • Core Dynamically Linked Libraries (DLLs)
    • kernel32.dll: Process and memory management
    • user32.dll: Graphical interface and user interaction
    • Researching functions using Windows documentation and tools like Dependency Walker to identify both documented and undocumented API calls
  • Key Outcome
    • Understanding of how Windows manages processes, threads, and privileges, along with the workflow for interacting with the operating system through APIs and DLLs.


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