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L3nSec

Knowledge of certain topics about Programming and Information Security in general

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Category: Reverse Engineering

This shows the steps I take to RE a certain binary or just concepts.

Bug Bounty · Mobile · Pentesting · Reverse Engineering

How to Decompile an Android APK (from Play Store)

October 9, 2020November 22, 2020 L3nLeave a comment

In this post, I explain how to get an APK from your phone/emulator and use JADX to pseudo decompile it.

Drivers · Programming · Reverse Engineering

How to Write an Antivirus from Scratch

February 6, 2019January 9, 2021 L3nLeave a comment

In this post I discuss some ideas I've had and captured from my little experience in this hard topic.

Game Hacking · Reverse Engineering

Internal vs External Game Hacks

May 23, 2018August 7, 2018 L3n2 Comments

If you're into game hacking then you probably have already heard the terms "Internal" and "External" hacks.

In this post I will go over the differences of each with code examples and which to opt for when hacking.

Game Hacking · Programming · Reverse Engineering

What are Multi-Level Pointers

April 29, 2018January 20, 2021 L3n1 Comment

Whether you're a programmer or a game hacker, you have probably dealt with those before, maybe even had a hard time understanding them.
Even if you have already used them in game hacking there's a high chance you don't know what they are at the high-level (C/C++ level)!

Exploitation · Pentesting · Reverse Engineering · Vulnhub

Brainpan: 1 – OSCP-Like Vulnhub Walkthrough

March 25, 2018January 20, 2021 L3n2 Comments

Yet another OSCP-Like Vulnhub machine, this one is recommended if you're looking to challenge your exploitation skills. Try it out by yourself first!
Machine link: https://www.vulnhub.com/entry/brainpan-1,51/

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About Me

Hey there! My name is David Gomes, I’m currently an InfoSec enthusiast working as a Developer.

Categories

  • Bug Bounty (1)
  • Drivers (1)
  • Exploitation (1)
  • Game Hacking (2)
  • HackTheBox (1)
  • Mobile (1)
  • Pentesting (5)
  • Programming (5)
  • Reverse Engineering (6)
  • Vulnhub (3)

Posts

  • October 2020 (1)
  • August 2020 (1)
  • June 2020 (1)
  • February 2019 (1)
  • July 2018 (1)
  • May 2018 (1)
  • April 2018 (1)
  • March 2018 (1)
  • February 2018 (1)
  • July 2017 (3)

Recent Posts

  • How to Decompile an Android APK (from Play Store) October 9, 2020
  • Optimum – HackTheBox Walkthrough August 15, 2020
  • Dependency Injection – IoC June 7, 2020
  • How to Write an Antivirus from Scratch February 6, 2019
  • Temple of DOOM – Vulnhub Walkthrough July 14, 2018
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