Hot Null Byte How-Tos

How To: Make a DIY Battery-Powered USB Charger

With portable devices being a necessity in modern everyday life, they may be subject to overuse, improper charging, or normal wear and tear. For those people who carry around their smartphone or iPod with them all of the time, how many times have you been out and about just to have your portable device die on you?

How To: Use Cygwin to Run Linux Apps on Windows

You'll see a lot of Linux action going down here at Null Byte. We use Linux for hacking-related stuff because it provides a more relaxed programming environment, making it easy to write exploits and tools. Linux has many features Windows is lacking, such as full control over the OS right down to the Kernel and massive availability of mature, open source (read: free & tweakable) tools & projects.

How To: The 15 Most Popular Talks from DEFCON's Hacking Conferences

Every summer for the last 26 years, hoards of hackers have descended on the Las Vegas Strip for DEFCON, the biggest hacker conference in the US. There's a wealth of talks every season (DEFCON 27 has at least 95 scheduled), and there have been some essential topics to learn from in past discussions. We've dug through the last ten years and found the 15 most popular talks you should watch.

Hacking macOS: How to Remotely Eavesdrop in Real Time Using Anyone's MacBook Microphone

Google, Amazon, and Facebook are always listening. But what's worse? Hackers are listening, too. Windows PCs are particularly vulnerable, but with a few simple commands, a remote attacker can even take over the microphone on someone's Mac computer, streaming audio and listening to private conversations in real time without the victim's knowledge, abusing an overlooked security consideration.

How To: Slip a Backdoor into PHP Websites with Weevely

Backdoors are convenient to leave behind once you've already found a way into a server, and they can come in handy for a variety of reasons. They're good for developers who want a quick way into machines they're working on, or for systems administrators who want similar access. Of course, backdoors are also a hacker's best friend, and can be added in a variety of ways. One good tool for doing this is Weevely, which uses a snippet of PHP code.

How To: Theme Your Kali Linux

I am back this time showing you guys how to theme your kali linux. Being true kali is good for pentesting but when it comes to looks it is lifeless , maybe the kali rolling could be an exception but even that makes you feel bored after a long time . So in this tutorial I am gonaShoe you how to theme up your kali

Networking Foundations: Subnetting Based on Host Requirements

Hello everyone! I hope you are having a great day so far. Today, instead of caring about networks we are going to talk about subnetting based on host requirements as promised in my first article about subnetting. Just like in the previous articles we will jump right into the examples because that's the best way to learn.

Zanti: Introduction

I've been doing tutorials on Rasberry Pi and I would like to thank everyone that have both read the tutorials and gave me feedback on how well I'm doing. But now I've decided to take a small break and start a mini series that I'm hoping to be at least five tutorials. This doesn't mean I'm gonna stop posting Raspberry Pi tutorials, but since I'm learning so much at the same time I've decided to share some of that knowledge. Hence this tutorial. Please sit back, relax and read on.

How To: Hack WPA/WPA2-Enterprise Part 2

In the second part of this tutorial, we are going to crack the hashes that we've captured previously. I'm going to explain how to do it with the powerful John the Ripper. It comes with Kali by default, so no need to install!

Basics of Ruby: Part Two (Loops)

In the last Ruby article, we talked about how to store information in three different kinds of storages: variable, array, and a hash. After we get the data, we have many ways of using them, but, for right now,

How to Hack Databases: Cracking SQL Server Passwords & Owning the Server

Welcome back, my rookie hackers! A short while back, I began a new series on database hacking, and now it's time to continue and extend your education in that field. As you know, the database contains all of the most valuable info for the hacker, including personally identifiable information, credit card numbers, intellectual property, etc. So, it's the ultimate goal of cybercrime and the APT hacker.

Hack Like a Pro: How to Hijack Software Updates to Install a Rootkit for Backdoor Access

Welcome back, my neophyte hackers! There are innumerable ways to hack a system. We must not overlook any of the possibilities if we want to "own" the system. As systems become more and more secure, we need to be vigilant in our search for weaknesses. In this hack, we'll look at abusing the trust that a user innately has for software updates to install our own listener/rootkit on their system.

How To: Get Free Wi-Fi from Hotels & More

Often times when staying at a hotel or anywhere for that matter, you'll whip out your laptop and check the local area for Wi-Fi. I know you've all been in my shoes when you find an unsecured network that appears to be public Wi-Fi belonging to the hotel or airport, and you connect to it. You connect fast and perfectly, only to find that when you open your browser, it says you don't have an account, and are filtered from accessing the web. This is because the owners of the network want to keep...

How To: Mine Bitcoin and Make Money

Bitcoin is a new currency built off "Satoshi Nakamoto's" (alias) 2008 Bitcoin white-paper. Bitcoin provides its users with a way to make peer-to-peer (P2P) transactions without having to use a bank as a mediator. There is no middle man, no corporation backing it, and no one has access to your money, except you. It's decentralized from government, run by the people, for the people.

How To: Use an ESP8266 Beacon Spammer to Track Smartphone Users

Smartphones and laptops are constantly sending Wi-Fi radio signals, and many of these signals can be used to track us. In this guide, we'll program a cheap IoT device in Arduino to create hundreds of fake networks with common names; This will cause nearby devices to reveal their real trackable MAC address, and it can even let an attacker take over the phone's data connection with no warning.