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Master the craft behind the exploit.

Free, lab-tested tutorials on Windows internals, exploit development, red teaming & adversary emulation — every offensive technique built and broken in the lab, then paired with how to detect and defend it.



60+ hands-on tutorials daily new drops lab-tested code that compiles free & open


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Structured paths, not a random blog feed — each runs foundational → advanced.

  1. New here? Follow the path:
  2. 1 Windows Internals
  3. 2 Exploit Development
  4. 3 Red Teaming
  5. 4 Adversary Emulation


Start with our best

A cornerstone deep-dive — see exactly how we teach.

Exploit Development · Editor’s pick

Structured Exception Handler (SEH) Internals on Windows

Tear apart Windows x86 Structured Exception Handler internals — from EXCEPTION_REGISTRATION_RECORD chain layout to a working POP/POP/RET exploit — then see exactly what defenders catch in Sysmon.

Read the deep-dive →


Latest drops

Fresh from the lab.



From the blog

Opinion, analysis, and field notes.

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Why GenXCyber

No filler

Every article is structure → code → detection. If a paragraph doesn't teach something checkable, it's cut.

Offense × defense

Each technique ships with Sysmon event IDs, Sigma rules, and MITRE ATT&CK mappings. Learn to break and to catch.

Built from the internals

We don't hand-wave the kernel. You'll see the structs, the registers, and why the exploit actually works.

Free & open

The whole curriculum is free to read. Subscribe and you'll never miss a drop.



Debraj Basak
Who’s behind GenXCyber

Debraj Basak

Senior Security Researcher @ Trellix · Red Team Architect · Founder of GenXCyber · Creator of the Apex modular C2 framework

5+ years in offensive security — exploit development, adversary emulation, C2 engineering, and Windows-internals research. 200+ MITRE ATT&CK emulations and 17+ EDR-evasion techniques shipped in production. Everything here is written from hands-on field work, not theory.

OSCPCRTOCRTLCRTPCARTPCRTMCPENTLPT MasterCEH v11MCRTA
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