Hot Null Byte How-Tos

How To: Introduction to Botnets and RATs : Part 1

Hello everyone. I'm Calypsus and i've been around for a while learning from various tutorials, expanding my knowledge and this is one of the best platforms for newbies to sharpen the skills. Today i decided to register myself and contribute to this wonderful community. Since this is my first post, any kind of feedback is appreciated.

How To: Execute Remote Commands on a Disconnected Victim

Do you ever thought that you can't control an Internet disconnected system? I saw a funny video in Chema Alonso's youtube channel (A well-known hacker of my country and creator of Fingerprinting Organizations with Collected Archives among other security tools), and decided to post something similar.

How To: Virtual Machine Basics

If you have never heard of a Virtual Machine (VM) before you might think it to be some new kind of gamers virtual reality system, and that would be incorrect. A virtual machine is a Virtually a real computer that exists inside of your own computer. You can run Kali inside of a Windows environment via your VM. Not quite the same as an actor portraying an actor on TV. A virtual machine will have it's own IP address and you have the ability to network to it from your Real (Host) computer and bac...

How to Train Your Python: Part 10, Making Our Own Functions

Welcome back! In the last iteration of how to train your python, we covered error detection and handling. Today we'll be diverging from this and discussing functions. More specifically, we'll be creating our own functions. First we'll need to understand exactly what a function is, then we'll get on to making our own! So, let's get started!

How To: Parallel Programming with OpenMP: A Quick Introduction

As many of you know, processor's clock frequency improvement got stuck in about 2003, causing the origin of multicore CPU (and other technologies). In this article I'll introduce you on how to run code simultaneously in various processors (I suppose that all of you have a multicore CPU). When you write code without any parallel directive, it only executes in one CPU at the same time (see it below). OpenMP make simple to work with various cores (if not with all of them) , without so much heada...

How to Train Your Python: Part 9, Basics of Error Detection and Handling

Welcome back! In the last iteration of how to train your python, we covered loops, today we'll be covering something that I wish I had learned about much earlier in my scripting career, errors. We all run into them, and they can be frustrating, but there is also a silver lining to them. Today, we'll be discussing why some errors are unavoidable, and what we can do when we run into them. Also, this article will be more of a concept and less of writing actual code, but the information is equall...

How To: Cover Your Tracks After Hacking a Wifi

Greetings null-bytians. Say you have been able to penetrate your neighbour's AP, and of course you had spoofed your MAC address. Now you go on and test to see with excitement if the password really works and the MAC is still spoofed. You login successfully and you browse the web forgetting to check what your current MAC is. Well, if you may do an ifconfig command, you will see that your permanent MAC is being used. Oh!! and guess what, ... your real MAC has been logged. Even though there is t...

How To: Perl for the Aspiring Hacker - Part 1 - Variables

Before I start a series on remote exploitation, I think we should learn the basics of Perl. Perl, Ruby, C, C++, Cython and more are languages that some penetration testers just need to learn. Perl is a great language for multiple things, sadly, like many other scripting languages, it is limited by the environment in which it is designed to work in.

How-to Ruby : Simple SSH Bruteforcer

Hello fellow training hackers. I do not know if many of you are familiar with ruby, but since it is a useful scripting language, that hasn't been covered too much here on Null Byte, I thought why not do some How-tos about it now and then.

How To: Inside Bitcoin - Part 1 - Bitcoin and Anonymity

Over the past decade the Internet community has been witness to the rise of many new forms of online interaction. These new technologies have given rise to anonymous networks (like TOR), black markets within the deep web network (like the Silk Road), and even forms of digital currency, or more accurately crypto-currencies, such as Bitcoin. All of these technological advancements have contributed to securing users around the world and protecting their privacy. Therefore it is no surprise that ...