---
title: "Neville Iregi (@m0ng00s3) | Hashnode"
description: "I write about cyber security content revolving around what I learn in reverse engineering and low-level programming, web security, cloud and network security..."
url: "https://hashnode.com/@m0ng00s3"
---

@m0ng00s3

# Neville Iregi

@m0ng00s3 · Nairobi, Kenya · Joined March 2026

### [Inside an ELF File: How Linux Executables Are Built and How to Read Them](https://m0ng00s3-blog.hashnode.dev/inside-an-elf-file-how-linux-executables-are-built-and-how-to-read-them?utm_source=hashnode&utm_medium=feed)

Every time you run a program on Linux, the kernel has to answer a few questions before a single instruction executes. Where is the code? Which parts of the file go into memory, and with what permissio

13 min read · [m0ng00s3-blog.hashnode.dev](https://m0ng00s3-blog.hashnode.dev/inside-an-elf-file-how-linux-executables-are-built-and-how-to-read-them?utm_source=hashnode&utm_medium=feed)

[Oct 26](https://hashnode.com/posts/inside-an-elf-file-how-linux-executables-are-built-and-how-to-read-them/6adfd2ed1b1e14e52563832d)

### [Exploring Windows Internals: A Guide for Security Engineering](https://m0ng00s3-blog.hashnode.dev/exploring-windows-internals-a-guide-for-security-engineering?utm_source=hashnode&utm_medium=feed)

Windows, as you might already know, is quite prevalent. With the low-level programming already gained in C/C++ and reverse engineering intro I have learned about so far, I had to also look into how Wi

42 min read · [m0ng00s3-blog.hashnode.dev](https://m0ng00s3-blog.hashnode.dev/exploring-windows-internals-a-guide-for-security-engineering?utm_source=hashnode&utm_medium=feed)

[Sep 24](https://hashnode.com/posts/exploring-windows-internals-a-guide-for-security-engineering/6ab55490eb468b3189e2fd69)

### [Finding out what Operating Systems are and do.](https://m0ng00s3-blog.hashnode.dev/finding-out-what-operating-systems-are-and-do?utm_source=hashnode&utm_medium=feed)

Brief intro on what an OS is and how it works along with its relevance in malware analysis

9 min read · [m0ng00s3-blog.hashnode.dev](https://m0ng00s3-blog.hashnode.dev/finding-out-what-operating-systems-are-and-do?utm_source=hashnode&utm_medium=feed)

[Aug 13](https://hashnode.com/posts/finding-out-what-operating-systems-are-and-do/6a7e09016cbf747fd751a9af)

### [Solving a simple Crackme](https://m0ng00s3-blog.hashnode.dev/solving-a-simple-crackme?utm_source=hashnode&utm_medium=feed)

An article on how to solve a simple crackme(Cracking challenge) by creating a program that generates random valid passwords in C for the program 101-crackme using tools such as objdump.

11 min read · [m0ng00s3-blog.hashnode.dev](https://m0ng00s3-blog.hashnode.dev/solving-a-simple-crackme?utm_source=hashnode&utm_medium=feed)

[Jun 13](https://hashnode.com/posts/solving-a-simple-crackme/6a2d58017626198f258df8c3)

### [Hack The Box: Vaccine](https://m0ng00s3-blog.hashnode.dev/hack-the-box-vaccine?utm_source=hashnode&utm_medium=feed)

A Linux machine that emphasizes enumeration, password cracking, abusing binaries

11 min read · [m0ng00s3-blog.hashnode.dev](https://m0ng00s3-blog.hashnode.dev/hack-the-box-vaccine?utm_source=hashnode&utm_medium=feed)

[May 25](https://hashnode.com/posts/hack-the-box-vaccine/6a1450d87d85e6a1afdc6d06)