Open Sentry Safe Without Code

Welcome to a tutorial on XOR encryption. We'll be looking at what XOR is and how we can use it to encrypt or decrypt data. What Is XOR? XOR is a bitwise operation in which each of the bits are compared and applied with the XOR operation according to the following table: We c ...more

Chrome apps and extensions are powerful tools for students: they can help optimize your web browsing experience by helping you take notes, check your grammar as you compose documents and emails, and even help you squeeze a little more juice out of your laptop's battery by free ...more

In this article I will show you how to obtain victim's credentials without cracking any hashes. There are a couple of ways to perform this task (for example dumping the SAM file and cracking the NTLM hashes), but here I will explain how to do it using PowerShell and a bit of s ...more

Juicing fruits and vegetables is very beneficial to your health. For some, it's a trend; but to me, it's a part of my morning routine. However, the negative side to juicing large quantities of fruits and vegetables is that leftover pulp can be wasted. Thankfully, this is easi ...more

When performing something such as a mass mailer attack on a company, sending executables usually isn't the best option. That's why, in this tutorial, I'll be teaching you how to code a VBA script macro into a Word document in order to compromise a system. Combined with a littl ...more

Step 1: What Exploit Development Is and Why Should I Be Interested on About This Topic An exploit is a piece of software, a chunk of data, or a sequence of commands that takes advantage of a bug or vulnerability in order to cause unintended or unanticipated behavior to occur ...more

Greetings all. Today I intend to append a new series to my mini-collection of posts. This series will consist of informative guides for the purpose of depicting certain aspects of the White Hat profession that I believe are of profound importance. Furthermore, I will keep thi ...more

Even those of us most comfortable in the kitchen can be daunted by the idea of cooking for a whole houseful of people. Whether you have a large, well-equipped kitchen or a small one with just the essentials, it can prove to be quite a task to prepare food for a dozen or so peo ...more

The biggest problem with Netflix (which is hardly a real problem) is the overwhelming amount of content available for streaming. Browsing through profile-specific categories might help narrow down your search on something to watch, but some of those categories come and go with ...more

Most of us lead busy, work-filled lives, often clocking in a 9-to-5 five days a week. And when that clock signifies the hour to leave, the last thing on anyone's mind is: "Time to go to the grocery store to pick up more fresh produce!" (Well, to be fair... maybe more people ar ...more

Last month, it was revealed that Juniper Networks' routers/firewalls were hacked. It was reported that a backdoor was implanted in the operating system of their routers/firewalls and that attackers could listen in on all encrypted communication. There are now fears that all co ...more

Have you ever seen those super-expensive universal remote controls like the Logitech Harmony and thought to yourself, "Man, I really want one of those, but that's just too much money"? You're not alone. Luckily, if you're an owner of an Android device with an infrared (IR) bl ...more

First of all, Merry Christmas and Happy New Year to all Null-Byters that learn and teach in this wonderful site. In this article we will explore the basics of the meterpreter's IRB (Interactive Ruby Shell). We will be using Kali version 1 as the attacker machine and Windows 8 ...more

This is my first How-To on Null-Byte, so I hope it's not too complicated written, because I am not a native english speaker. I don't use pictures, but this Tutorial is a good supplement for my updated Tutorial here. This Tutorial shows you how to set up the old (First leaked ...more

What's up readers? Today I'll be introducing to you a new vulnerability called the Format String vulnerability (in case you missed the title). It won't be much, just a little motivation to keep you guys going. A little teaser, if you may. Pre-requisite information: For those ...more

Hello friends. This is actually my first how to. In this tutorial I'll be teaching how to simply copy someone's WhatsApp pictures gallery into your computer, in an automated way. It is just an example of how easy is to steal data from someone's smartphone. I am covering Whats ...more

Students have been passing notes in class for decades, so what's the big deal about sending a quick text message? Everybody does it, even your teacher was surely guilty of covertly communicating with his or her peers back when they were in high school. Don't Miss: How to Bypa ...more

Greetings my fellow aspiring hackers, Android Development like other programming languages requires the use of some basic essential components, programs and configurations to get started. Android Development requires a little bit of knowledge of the Java language which means ...more

Welcome back, reader! In this tutorial, we will be covering our first program! So let's get to it. We all know the unspoken tradition of the first program when learning a language and of course, here we will respect and complete it. Fire up your favorite text editor (be it vi ...more

hello hackers,newbies and followers of this great community, after some research here in our community, I noticed that there is not even one tutorial that teach Web Development. We have a lot of tutorials on how to hack web site but many do not know exactly how a web site is c ...more

UPDATE: This post is outdated, the latest version with the correct links and updated instructions can be found UPDATE: This post is outdated, the latest version with the correct links and updated instructions can be found at my blog, here - at my blog, here - https://techkerne ...more

Hi I am a new member of null byte(although I am reading this website from the beginning) and this is going to be my first post. Let me introduce myself first ! I am from Greece, I am working as a network engineer and I am into system and network administration but definitely ...more

Hello null_byters, after some time out here we are again with another tutorial, continuing our beautiful series, today we will write our first real world bash script. BEFORE WE START Before we start today's lesson Let's recap what we learned in the previous lesson, right now ...more

Welcome to the Part 2 of the series 'Cryptocurrency'. It has been late because of some errors, where all I typed was lost. In this post, I will convince you that it is the best type of currency for hackers. That means I will cover the following topics in this post- Anonymity, ...more

Welcome back, my tenderfoot hackers! As most of you know, I am strong advocate for using Linux as a hacking platform. In fact, I would say that without knowing Linux, you will never become a professional hacker/pentester. On the other hand, there are many here who come to Nu ...more

INTRODUCTION Hello dear null_byters here we go again with our third part of this serie. in this third part of our series I'd like to do a demonstration or continuation on fuzzing, but I think I should leave for later because the next tutorials about fuzzing will require from ...more

If I could only eat one food for the rest of my life, it would definitely be potatoes. In fact, when I recently saw The Martian, I didn't feel that badly for Matt Damon. I mean, sure... he was stranded on a hostile planet, millions of miles from home. But he got to eat potatoe ...more

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 mult ...more

Pain is, for the most part, unavoidable when you stub your toe, break your arm, or cut your finger open. It's instantaneous and, in some cases, long-lasting, but it only feels as bad as you want it to. Yes, that's right—that pain is all in your head. Now I'm not saying that p ...more

Hello, everyone! Many of you don't even know about my existence here on Null Byte, so I thought of contributing something rather interesting. Recently, someone asked how to make your own "Bad USB," and I promised to make a how-to on this topic. In addition, it would be nice t ...more

While password cracking and WPS setup PIN attacks get a lot of attention, social engineering attacks are by far the fastest way of obtaining a Wi-Fi password. One of the most potent Wi-Fi social engineering attacks is Wifiphisher, a tool that blocks the internet until desperat ...more

APOLOGIZE Hello my masters and colleagues, first of all I would like to apologize for my absence during the past month, to say that i was busy with some projects and decide to leave the white-side for a while and made some visits on the dark-side(every good COP has a dealer f ...more

Hello my fellow hackers, it's been a while since my last post, I can't get the time now-a-days for the posts but can manage to tend to comments. Welcome to my 9th post, this tutorial will explain how to extract and decrypt WhatsApp database from the Victim's android system. ...more

Welcome back, my tenderfoot hackers! Recently, Microsoft released a new patch (September 8, 2015) to close another vulnerability in their Windows Vista, 7, 8, and 8.1 operating systems. The vulnerability in question (MS15-100) enabled an attacker to gain remote access to any ...more

You would think that with each major iOS update, there'd be fewer ways to bypass the lock screen. Unfortunately, Apple's developers have consistently failed every year since 2013 in this department, leaving open lock screen exploits for iOS 7, iOS 8, and now the latest iOS ver ...more

One of my favorite things about cocktails is that they're so diverse. They can be sweet or savory, filling or refreshing. And they can take advantage of nearly any ingredient imaginable, including egg whites, smoked ice, flavor cubes, and even beer. As a card-carrying member ...more

Hello all! In this tutorial, I'd like to show you one way of getting root on OS X. Check out this GitHub page for a recent privilege escalation exploit that was recently discovered. I've tested it and it works on both OS X 10.9 Mavericks and OS X 10.10 Yosemite, but appears to ...more

Last year, the Washington Post's Ashley Halsey wrote an article on what really happens to your luggage at airports. In it, they unwittingly published a photo of the master keys the TSA uses for TSA-approved baggage locks. Now, thanks to that picture and a French lock-picking e ...more

There is something so satisfying about dipping your spoon into a perfectly smooth slice of cheesecake. There is something a bit less satisfying about it if the top of the cheesecake is cracked and cratered. A Bailey's cheesecake, humorously called an "earthquake cheesecake.". ...more

If you've switched ROMs before or flashed quick mods on your Android device, you've probably used TWRP or another custom recovery to install them. But another great purpose for flashing through a recovery is to install your own custom .zip file filled with everything a fresh R ...more

People like to cite the iPhone as the device that started the smartphone craze, but the truth is, smartphones had existed for years by the time Apple got into the game. The real groundbreaking feature that this device brought to the table was a multi-touch screen to go along w ...more

Returning your device to stock, whether it is because you need to sell it or just want to receive OTAs again, is not always a simple process. Since HTC has released countless variations of both the M7 and M8 HTC One, it can be a pain in the ass finding the right files and tool ...more

Welcome back, my amateur hackers! As many of you know, Null Byte will soon be re-establishing its IRC channel. In preparation of that event, I want to show how to set up a secure IRC client with OTR, or Off the Record. OTR does all the right things to make your instant messa ...more

So, you want your terminal to be customized with awesome script every time you fire it up, huh?! Well, look no further because I am here to answer this calling! This "How-To" Will be short, descriptive, and to the point! So, let's get right into it, shall we then? ___________ ...more

Man-in-the-Middle attacks can prove to be very useful, they allow us to do many things, such as monitoring, injection, and recon. What Is a Man-in-the-Middle Attack? Essentially, a man-in-the-middle attack is when an attacker places them self between two parties. This passes ...more

The day has finally come, and after quite a bit of hype and buildup, Windows 10 is now officially available. The update itself is on a staged rollout, which means it will be slowly becoming available to users over the coming weeks and months, so don't panic if you haven't alre ...more

Researchers at the cyber security firm Zimperium have recently uncovered a vulnerability in roughly 95% of Android devices that has the potential to allow hackers to take total control over your phone with a simple picture message (MMS). The gritty details of this exploit have ...more

This is a short explanation and tutorial on how to grab saved passwords from Google Chrome, ideally from a meterpreter session. The idea behind this is to understand how saved passwords work and how to keep them safe. Let's have some fun :D Understanding Google Chrome Saved Pa ...more

Malware often disguises itself inside of seemingly non-malicious files, such as installer packages, where it can then gain root access to your computer to track activity or steal your information. While your Mac does a good job of protecting you, thanks to built-in features l ...more

Hi, everyone! Recently, I've been working on a pretty interesting and foolish project I had in mind, and here I'm bringing to all of you my findings. This guide's main aim is to document the process of building an Android kernel, specifically a CyanogenMod kernel and ROM, and ...more

Security researcher Samy Kamkar, best known for his MySpace Worm, and most recently for his online calculator that can help you crack any Master Lock combination, is at it again. This time he's figured out how to break into security doors that have a motion-sensing egress syst ...more

So you finally decided to make the switch from iOS to Android, huh? Well first off: welcome to the world of tomorrow. And secondly: good call, mate. In all seriousness, switching between mobile ecosystems can be quite the hassle. Even after you've grown accustomed to the new ...more

Remembering keyboards shortcuts can prove difficult, especially when there are so many to remember, not to mention that they differ from app to app. While tools like CheatSheet can make them easier to use, today I'm going to show you how to enter them without using your keyboa ...more

These days, that pocket-sized computer we call a smartphone is home to your entire digital life. But with the onset of mobile payments and online banking, the line between your virtual world and the physical realm is becoming increasingly blurred. We vigilantly remember to lo ...more

Disclaimer: All information in this tutorial is for entertainment and educational purposes ONLY. You pesky teenagers. In my previous tutorial, I covered how to make a backdoor in an OSX system. I also covered some fun commands to try whilst the backdoor connection is in tact. ...more

Keyboard shortcuts can make using your Mac faster and easier, and leave your mouse feeling archaic. With just a few taps, you can save files, open new tabs, or play a movie—all without using your mouse even once. Don't Miss: 30+ Keyboard Shortcuts You Should Be Using on YouTu ...more

When it comes to security, there are usually only a handful of things that you want protected from prying eyes on your iPhone—private photos, scandalous videos, and important text, such as credit card and social security numbers. Protecting your iPhone with a lock screen pass ...more

A recently discovered bug in iOS 8's Mail app by Jan Soucek can allow the maliciously-minded to quite easily phish your iCloud password without you ever thinking something has gone awry. Using a bug that allows remote HTML content to be loaded in place of the original email co ...more

Since the new Mac OS X 10.11 El Capitan is brand new, I recommend installing it on a separate partition on your hard drive. This will keep your current Yosemite system safe from harm, and will let you easily switch back to it should El Capitan become unusable for any reason. ...more

Apple announced the release of their newest Mac OS X version at this year's Worldwide Developer's Conference, and it's called "El Capitan." Like the majestic rock formation it's named after (located within Yosemite National Park), El Capitan promises to emphasize and expand on ...more