3 Variables

One of the most critical bugs to come out in the last five years was Shellshock, a vulnerability which allows attackers to execute arbitrary code via the Unix Bash shell remotely. This vulnerability has been around for a while now, but due to the ubiquity of Unix machines conn ...more

Now that we have installed the toolkit, set up our prefabs, and prepared Unity for export to HoloLens, we can proceed with the fun stuff involved in building a dynamic user interface. In this section, we will build the system manager. On the most basic level, the system manag ...more

Welcome back, my tenderfoot hackers! As you should know from before, Snort is the most widely deployed intrusion detection system (IDS) in the world, and every hacker and IT security professional should be familiar with it. Hackers need to understand it for evasion, and IT se ...more

Hey guys, in this tutorial, we are going to learn about the heap segment and how to use it for storing data in our programs. We will also go into the details of its use in conjunction with the char pointer and struct data types. The Heap We've already discussed the stack in ...more

Welcome, in this tutorial we shall we looking at creating a safe(r) way to back up your important files. The contents we will be covering are as follows; Creating a partition Updating the /etc/fstab file Mounting a file system with Python Copying the contents of a file system ...more

Apple's grand reveal of iOS 8 at WWDC in San Francisco is still a few days away, but that doesn't mean there isn't any speculation as to what features and enhancements might come packed in the new mobile operating system. With iOS 7's complete UI overhaul not even a year old, ...more

In this article I'll show you how to make a simple IP address notifier. The program will text you your new IP address, in the event that it changes. For those of you with dynamic IPs, this is very useful. I'm constantly frustrated when my IP changes, and it's handy to be notif ...more

In this article, I'll show you how to make a simple Gmail notifier. Python can do various things in terms of notifications; sending commands to an Arduino unit, playing sounds, opening windows, etc. The code below simply plays some music, but the possibilities of notification ...more

If you haven't participated in this week's Math Craft project on the platonic solids, maybe this will inspire you to do so. Michael Hansmeyer is an architect and programmer based out of Switzerland who works with algorithms in architecture. His Platonic Solids project investi ...more

Cocktails and spirits writer Camper English likes playing with ice. His latest experiment is a ticking ice bomb (re: an ice cube filled with food coloring that slowly turns your beverage black as it melts). Camper's brief explanation is enough to get you started: "The first ...more

For some reason, McDonald's hamburgers are mysteriously unsusceptible to Mother Nature's inevitable toll of decomposition. Yep, you pretty much have to dip a McDonald's cheeseburger in acid if you want it to decompose. So we're left with the question: Why? Why does a McDonald' ...more

Choosing which programming language to learn next can seem like a nearly impossible task, regardless of whether you're a novice developer or a seasoned coding pro with years of experience creating apps and websites. But if you haven't already learned Python, look no further. ...more

Microsoft Excel is one of the most powerful programs for modern businesses. By allowing you to manage, sort, and analyze large collections of data, Excel provides an essential service for any company interested in using the power of data science to its advantage. The Complete ...more

An incorrectly scaled object in your HoloLens app can make or break your project, so it's important to get scaling in Unity down, such as working with uniform and non-uniform factors, before moving onto to other aspects of your app. This HoloLens Dev 101 series has been desig ...more

Welcome back everyone. This article isn't going to contain anything related to scripting, but rather some updates about the series. We'll be quickly discussing what we've covered so far and what is to come. When we started this series about 5 months ago, we were teaching the ...more

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, we're going to only focus on loops Loops Ruby specializes in the ...more

Welcome back, my hacker novitiates! In the previous two posts in this series, we looked at the basics of buffer overflows. In this post, we will look at one technique for finding buffer overflows. We will try to send random, oversized, and invalid data at a variable to see wh ...more

This is a followup from my recent series on XSS exploitation, giving a few extra attacks/tricks to try. Google's Prank Google developed a JavaScript code (available here) that you can customize. Basically, it makes all the elements on the page swirl around, fade out to white ...more

Welcome back, my hacker apprentices! Metasploit framework is an incredible hacking and pentesting tool that every hacker worth their salt should be conversant and capable on. In a previous post, I had provided you a cheat sheet of meterpreter commands. These commands are ess ...more

Before lead was removed from gasoline, lead from car exhaust got into the air, was breathed in by kids, lowered their IQs, and increased crime rates (there is a very strong correlation between IQ and criminal behavior). Jessica Reyes regressed violent crime rates in all 51 st ...more

The most common Wi-Fi jamming attacks leverage deauthentication and disassociation packets to attack networks. This allows a low-cost ESP8266-based device programmed in Arduino to detect and classify Wi-Fi denial-of-service attacks by lighting a different color LED for each ty ...more

Format strings are a handy way for programmers to whip up a string from several variables. They are designed to save the programmer time and allow their code to look much cleaner. Unbeknownst to some programmers, format strings can also be used by an attacker to compromise the ...more

In this article, I'll show you how to send SMS messages with Python. You'll need Python 2.7 or later, urllib and urllib2. The code basically uses an online text messaging service to "POST" html data, as if a person was entering the data themselves. The uses for something like ...more

In this article, I'll show you how to create a simplistic AES python based text encryptor. You'll need python 2.7 and PyCrypto (found here). The code is fairly simple, a user enters an encryption key (which basically tells the program how to scramble the text, using an algorit ...more

Our mission for this week's Community Byte was to create a Python program to crack web-based passwords, like the ones you would see on an email or router login. I wanted it to be universal in the sense that it could be easily modified and adapted to another website just by cha ...more

Apple added "Announce Messages with Siri" with the release of iOS 13.2, and it came as a welcome surprise for me; I missed the feature from its initial run during iOS 13 beta testing. However, while users online gleefully showed off their newfound Announce Messages with Siri c ...more

Designing and manufacturing waveguides for smartglasses is a complex process, but DigiLens wants us to know that they have a software solution that partially solves that problem. In a new video, which explains its approach to the process, the company gives us a peek at protot ...more

We used to view homemade dressings as something whose variables of flavor and texture outweighed our desire to make them up on the fly. We often found ourselves nervous that they'd come out too runny or too tart or even too thick. Then we discovered the magic formula to a per ...more

OK, In my last Tutorial we made a Server for sending Instructions to a Client. This time we will build the Client. Fire up your favourite Python environment and get the Code here. The Server Code ---Imports--- -socket is again for the connection -time is for pausing the Clie ...more

Recently, I've been learning Ruby as a second scripting language. But one topic I never covered with the many lessons online were sockets. So I did some research and came up with a very simple client/server connection that sends a string over the socket. The Client First, th ...more

The new Samsung Galaxy S4 has something no other phone has ever had before—weather sensors. Older devices like the Galaxy Nexus, S3, Note, and Note 2 do have a atmospheric pressure sensor, aka a barometer. However, they do not have a thermometer or hygrometer like the GS4 does ...more

With gas prices soaring in the US and around the globe, the cost to drive to a vacation destination is becoming a much larger expense item in the overall travel budget. Although it's easy to see that gas prices have risen dramatically in the past several months, it's not nearl ...more

Note: The article assumes that the reader has a fundamental understanding of at least one other programming language and Perl. This is intended serve as a quick reference for Perl's input/output of data to databases. Once you've mastered the basics of Perl, you might want to ...more

Shortening URLs has become a necessity in this age of Twitter and limited-character status updates. It not only allows us to cram more words into our oh-so-important Twitter statuses, but it also helps us with a few other things. Some Benefits of URL Shorteners We can create ...more

Microsoft's built-in antimalware solution does its best to prevent common attacks. Unfortunately for Windows 10 users, evading detection requires almost no effort at all. An attacker armed with this knowledge will easily bypass security software using any number of tools. As ...more

Antibiotic use in infants has been associated with a host of childhood conditions later in life. Yet when an infection is suspected in a newborn, usually a sample of their blood is drawn to check for the presence of bacteria and 5 to 8 percent of them receive antibiotics while ...more

This tutorial follows the same idea as my original tutorial for windows, but I've redone it to work with Mac OS X. Here's how to get a meterpreter session from your victim opening a malicious word document: Step 1: Creating the Payload For this tutorial, I'll be using a pyth ...more

Welcome my aspiring hackers and programmers! Today i will introduce you to a programming language that as a hacker you should have in your set of hacking/programming skills (except if you're only interested in web hacking/programming...then you should go learn some html or PH ...more

I saw many people asking for a Tutorial about writing their own Remote Administration Tool, so I now introduce you in a basic kind of RAT. This program is not for real use, but for learning how you could write this kind of tool. It will be basicly coded and not very refined. I ...more

Programming is an essential thing in hacking/pentesting, and at times, I do not feel that it is being addressed enough here, at Null-byte. I understand that this is a forum dedicated for hacking, but I'll address some of the stuff I feel is muy importante about programming. I ...more

As you might know, there are a multitude of tools used to discover internal IP addresses. Many of these tools use ARP, address resolution protocol, in order to find live internal hosts. If we could write a script using this protocol, we would be able to scan for hosts on a giv ...more

Hi everyone! After messing around a little bit with IDA and Hopper disassemblers and briefly introducing you to memory, registers and Assembly, we are going to understand what happens when a process is running, which variables join the play and especially what happens when a ...more

While still extremely awesome, the Samsung Galaxy Gear smartwatch is limited as to what you can download on to it, especially apps. It also doesn't have its own internet access (only Bluetooth), so apps like Instagram, Facebook, and Vine have yet to make their way to the Gear ...more

Nerds get a bad rap most of the time, but on Halloween, everyone wants to be one. However, not everyone knows how to geek it out without going too far. There is a limit, even for nerds, and these eight Halloween costumes are nerdy times pi. #1. Mozilla Firefox Costume Dressi ...more

We've all been there. Your phone's either dead or barely hanging on with a few minutes of life left, and you only have a small window of time to charge it before you need to head out. Sure, you can charge it for the few minutes you have, but what's the point if your device is ...more

Particles, such as electrons, have a property called spin which can be measured at any angle, but when measured always results in one of two answers—up or down. If a particle's spin has been measured at an angle of zero degrees and results in a spin up answer, then if its spi ...more

Data can be injected into images quickly without the use of metadata tools. Attackers may use this knowledge to exfiltrate sensitive information from a MacBook by sending the pictures to ordinary file-sharing websites. Continuing on the topics of DPI evasion, payload obfuscat ...more

Ever wanted to display text in Minecraft? It's actually not overly difficult. In this tutorial, I will endeavor to guide you through the process between storing and displaying text from memory. To do this, we will examine two different methods of displaying and storing text in ...more

Snapseed is a highly regarded and award-winning photo-editing app for iOS devices. Originating out of image manipulation specialist Nik Software in San Diego, Snapseed is Apple’s iPad App of the Year and, after using it for the purposes of this review, I believe it points to t ...more

A bounty hunt is simple: Go to the wanted board in your ranch or city and look for a wanted poster. Look at the bill and if it's to your liking, accept the bounty. Once you get to the gang hideout, take the boss alive for more money and fame, or just kill him and bring back e ...more

How To Start To start developing website is a hard way to tell people depending on what they are best at. I'd like to describe a few of 'em. I will call them a few names depending on what effect comes out of 'em. And I will describe what developing languages there are out the ...more

Java is one of the world's leading programming languages thanks to its virtually endless array of applications. Since Java's initial release in 1998, this Open Source platform has become beloved by coders for its speed, flexibility, and dependability. The 2020 Java Bootcamp B ...more

Correctly identifying the underlying technologies that run on a website gives pentesters a considerable advantage when preparing an attack. Whether you're testing out the defenses of a large corporation or playing the latest CTF, figuring out what technologies a site uses is a ...more