
This course teaches C# from scratch for offensive security work. You build real Windows tools in every module. The course closes with a File Reconnaissance Tool and a bonus reverse TCP shell.
# Why This Course
C# is the standard language for Windows offensive tooling. It compiles to real executables, calls Windows APIs directly, and runs on every modern Windows host without extra dependencies. This course teaches you how to write it.
## How .NET Works
You start with how .NET works. The first module covers MSIL, the CLR, and JIT compilation. You learn what your compiled binary exposes to any analyst with a decompiler. That knowledge shapes how you write code from the start.
## The Language
The bulk of the course is the C# language itself. Data types, string parsing, operators, functions, control flow, collections, classes, file I/O, and exception handling. Each topic builds on the last and connects directly to tooling work.
## Final Project: File Reconnaissance Tool
The course ends with a final project: a File Reconnaissance Tool. The program walks a directory tree, filters files by type, groups findings, and writes a report to disk. You publish the finished tool as a self-contained Windows executable.
## Bonus Lab: Reverse TCP Shell
A bonus lab goes further. You build a reverse TCP shell in C#: a listener and a client connected over loopback, with a live `cmd.exe` session routed through the socket. Every component traces back to language concepts from the course.
## Requirements
No prior programming experience is required. The course runs on Windows Server 2025.
Learn Windows x64/x86 assembly from zero to shellcode-ready. NASM labs, x64dbg, Win32 APIs, position-independent code, PE format, direct syscalls, and stack overflows. The prerequisite course for serious offensive development on Windows. One high-level language required; no prior ASM needed.
This course teaches C# from scratch for offensive security work. You build real Windows tools in every module. The course closes with a File Reconnaissance Tool and a bonus reverse TCP shell.
C# is the standard language for Windows offensive tooling. It compiles to real executables, calls Windows APIs directly, and runs on every modern Windows host without extra dependencies. This course teaches you how to write it.
You start with how .NET works. The first module covers MSIL, the CLR, and JIT compilation. You learn what your compiled binary exposes to any analyst with a decompiler. That knowledge shapes how you write code from the start.
The bulk of the course is the C# language itself. Data types, string parsing, operators, functions, control flow, collections, classes, file I/O, and exception handling. Each topic builds on the last and connects directly to tooling work.
The course ends with a final project: a File Reconnaissance Tool. The program walks a directory tree, filters files by type, groups findings, and writes a report to disk. You publish the finished tool as a self-contained Windows executable.
A bonus lab goes further. You build a reverse TCP shell in C#: a listener and a client connected over loopback, with a live cmd.exe session routed through the socket. Every component traces back to language concepts from the course.
No prior programming experience is required. The course runs on Windows Server 2025.
Assembly Programming for Malware Development
Golang Programming Basics
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