NullSector

Uncover the Unknown.

Elite security write-ups, zero-day research, and modern software engineering deep dives. For those who build, break, and secure.

Active Directory Real-World
Hard

Active Directory Kerberoasting Deep Dive

An elite breakdown of Kerberos authentication flaws, Service Principal Name (SPN) extraction, and offline ticket cracking techniques used by advanced persistent threats.

Oct 24, 2026 12 min read
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Web Security HackTheBox
Insane

SQL Injection to RCE via File Upload

Chaining a blind boolean-based SQL injection with an insecure file upload mechanism to achieve unauthenticated Remote Code Execution on a hardened target.

Sep 15, 2026 18 min read
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Architecture Real-World
Medium

Building an Asynchronous Fast-API Gateway

Architecting a highly concurrent, secure, and resilient API gateway using FastAPI, Redis token bucket rate limiting, and structured JSON logging.

Aug 02, 2026 8 min read
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Reverse Engineering Real-World
Insane

Bypassing EDR: Direct Syscalls & Unhooking

An exploration of modern Endpoint Detection and Response (EDR) evasion techniques, focusing on NTDLL unhooking and the implementation of direct system calls in C++.

Jul 19, 2026 22 min read
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