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Affichage des articles du 2018

HackINI 2018 : Some Writeups

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Hello, HackINI (stands for Hack Initiation) is an event that is held once a year at the higher national school of computer science at Algiers, in a whole day, a CTF competition and workshops on various information security subdomains are held in parallel, this year, it was held on February 10th. The challenges of the CTF competition are mostly easy-medium, this post will contain some writeups on some of the tasks. Locked (Reverse Engineering):  We are given a program that prompts us for a combination of keypresses. When we select a wrong combination of keys and press check, it displays "Wrong password" , and if we do it three times, the program exits Let's start reversing! first, let's identify the file, we could use Detect it Easy, or any other file identifier Looks like it's a .NET program, let's decompile it to check its code (I'll use dnSpy, a free .NET decompiler). Hmm, this function is called when we press the Chec...

NFSMW2012 Cheats : Flying Opponents

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Hello Everyone, This is a gamehacking tutorial targeting Need for Speed Most Wanted 2012. In this tutorial, I will register a hotkey that when pressed, will raise all the opponents by 20m to the sky (and by opponents I mean both cops and race opponents), lets start :D We'll start by searching for the z coordinate of our car (a value that indicates its height), we must keep in mind that the z axis might be inverted (ie. when our height increases, z might increase or decrease) -This value has two possible types : Float and Double (because it's a real number) - There are two possible cases :     -> Getting more height increases z     -> It decreases z So there will be a total of 4 cases, we can use different tabs to speed up the process, but we'll start with the most likely (Float type, because FPU arithmetic is faster on single floats, game programmers like to use it for coordinates and values that are involved in lots of calculations)...