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Hacker

Threat intelligence analyst, security enthusiast and constant learner.

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Anonymous and the rise of 'hacktivism' as a collective action phenomenon

Abstract This paper seeks to reflect on the role of groups of individuals with remarkable technical skills and a particul...

Operational security techniques in asymmetric conflicts - I (threat modeling)

About asymmetric conflicts According to WikiPedia: Asymmetric warfare (or asymmetric engagement) is war between belliger...

Reverse engineering x64 binaries with Radare2 - 15 (Windows fundamentals; Intro to WinApi and file management)

Today we are going to talk about the windows api, something that will allow us to do similar stuff as what we are doing wi...

Reverse engineering x64 binaries with Radare2 - 14 - I (linux systems programming; theory, syscalls, files and ESIL)

What’s up family, today we are going one step further in reversing. From our fist reversing tutorial untill now, we saw th...

Reverse engineering 32 and 64 bits binaries with Radare2 - 13 (defines, unions and bitmaps)

Today we are gonna get a bit low level. We’ll review important stuff like unions bitmaps and defines, that are commonly us...

Reverse engineering 32 and 64 bits binaries with Radare2 - 12 (linked lists, enums, bitwise operations and r2pipe)

Hello everybody! We are about to end this first part of the course, aren’t you excited? I’m sure you are. Today we will ...

Reverse engineering 32 and 64 bits binaries with Radare2 - 11 (more pointers and dynamic structs)

As pointers and dynamic memory in general are a very relevant topics that play a criticcal role in modern programs they de...

Reverse engineering 32 and 64 bits binaries with Radare2 - 10 (pointers and dynamic memory)

Hello I’m Artik Blue and today you will finally understand C pointers. Let’s start with this code #include <stdio.h>...

Reverse engineering 32 and 64 bits binaries with Radare2 - 9 (files; read, write, seek and some heaps :O)

Heeello! Today I want to talk you about file operations. File read and write operations are very important as most of the...