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L3nSec

Knowledge of certain topics about Programming and Information Security in general

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Author: L3n

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.

HackTheBox · Pentesting

Optimum – HackTheBox Walkthrough

August 15, 2020 L3nLeave a comment

This is a pretty easy retired HackTheBox machine that you should try out! It has a straight forward exploitation path.

Programming

Dependency Injection – IoC

June 7, 2020January 20, 2021 L3nLeave a comment

In this post, I explain a technique used to implement Inversion of Control, namely Dependency Injection.

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.

Pentesting · Vulnhub

Temple of DOOM – Vulnhub Walkthrough

July 14, 2018January 20, 2021 L3nLeave a comment

This is a somewhat easy/a bit intermediate machine perfect to practice a certain OWASP Top 10 vulnerability. Try it out yourself!
Machine link: https://www.vulnhub.com/entry/temple-of-doom-1,243/

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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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