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How is it goin', fellow 1337 haXX0rZ! dtm here with another article, this time, we'll be looking at infecting PE files, executables in particular for this write-up. Obviously some prerequisite knowledge will be needed since this isn't really newbie-friendly. If you are still a ...more

So DTM insisted I write up a little article on Bogo Sort. What Is Bogo Sort? Bogo Sort is a sorting algorithm that is not used in production at all. Why? Because it's extremely stupid. Some even call it "Stupid Sort." The algorithm works by generating random permutations of ...more

Hello aspiring hackers, It's been a while since I wrote a tutorial, so I figured I might just share one of the tools that I have created to help the community grow. Scenario Let's say, that we have done all the recon(both passive and active) and we have scanned the web serve ...more

Hello again, readers! In our previous crypter tutorial, we looked at how we could obfuscate our malware (or any program) by using a simple one-byte XOR key. In this quick tutorial, we will be looking at how a simple little tweak can create a better means of obfuscation. Let's ...more

Hello fellow gray hat hackers, I wrote a program in python that helps me to fill up my proxychains.conf file, so I don't have to manually enter in the proxies. I figured I will give a little how-to of how I did it and maybe I could help some of you(hackers) out there to stay a ...more

Welcome back to a tutorial on malware. We'll be discovering a method to beef up our little trooper. Without further ado, let's jump right in! Recap In the previous tutorial, we learned how to write a program which opened itself for reading to write to a host file, overwritin ...more

Welcome to an introduction on writing basic malware, an optional sub-series in which I expose you to malware and its technologies. This is written for those who wish to seek a beginning in malware analysis or enlightenment on the subject. We will be justifying the writing and ...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

Hey readers! This tutorial will be the entry point for the introduction of buffer overflows. Something like requesting user input is a very common place for vulnerabilities to pop up and we will definitely have fun while trying to make programs crash. But for now, let's start ...more

What's up guys! It's time to discuss strings in more detail. Review Just a revision in case you have forgotten about what buffers (arrays) are. A buffer is a container to hold data which are adjacent to each other in memory (we have seen this in the previous tutorial on memo ...more

Hello there, reader! If you've clicked on this How-to then it means you are interested in learning some C programming or just generally curious about what this page has to offer. And so I welcome you warmly to the first of many C tutorials! Introduction First of all, let me ...more

Hello, fellow grey hat hackers and aspiring coders. I'm back again with another python tutorial. Just that this one is gonna be a lot cooler ;-). We gonna make an encryption program, that well you know encrypts all the files on your pendrive or hdd or whatever you want....Also ...more

When I tried to set up an eviltwin for a MitM-constelation in kali 2.0, I couldn't provide internet to the victim. The origin was the brctl bridging. I have read many tutorials but all of them where explained in backtrack and older versions of kali. So i was searching for a so ...more

First of all, I hope the title makes sense. :D Well, this is basically creating a program that can help with dictionary attacks. Generate possible passwords. It pretty much lies in you knowing the person you want to hack. Story Time I just like stories :D Well, I heard abou ...more

Well, this is my first article so if it sucks tell me...lol!! Story Time Well, story time....yaaay!!! I wanted to learn buffer overflows and binary exploitation and all those asm crap...lol So I opened up a lotta sites and eventually came across a polytechnic website with p ...more

Welcome back, my hacking friends. We use our smartphones every day, for business, socialization, and leisure. The number of iPhone users is increasing in dozens of millions every year, with a whopping 63.2 million users in 2014 alone. That's a lot of users. Here's the scary p ...more

While our smartphones are many things, one of their primary functions is to make calls. Many of us try to avoid ever having to make calls, but there are situations when it's a must, such as wishing your grandma happy Birthday or calling 911 — and in those times you want stella ...more

It was a long time coming, but we finally have a meaningful conclusion to the legal case against augmented reality startup Meta Company. On Tuesday, the United States District Court for the District of Delaware granted a permanent injunction against Meta Company and its found ...more

KeePassX, 1Password, and LastPass are effective against keyloggers, phishing, and database breaches, but passwords managers rely on the operating system's clipboard to securely move credentials from the password vault to the web browser. It's within these few seconds that an a ...more

While photography usually gets all the love, our phones have gotten really good at capturing video. Think about it — when was the last time you needed a camcorder for a vacation? With mobile cameras getting better each year, we're now at a point where smartphones can be used f ...more

The ability to execute system commands via a vulnerable web application makes command injection a fruitful attack vector for any hacker. But while this type of vulnerability is highly prized, it can often take quite a bit of time to probe through an entire application to find ...more

An average user's smartphone tinkering doesn't go much further than taking their phones out of the box, signing into their account, and installing apps. But some of us want more functionality and customizability than the basic experience provided by Android and iOS. Thankfull ...more

In this tutorial First, we will discuss what a meeting is, How can we schedule it in Outlook. A meeting can be defined as a mass of two or more people have a common motive. All the people present in a meeting can share their ideas and exchange information, to carry out the act ...more

What's up guys? Welcome to a sort of general walkthrough on how one might approach a reversing and analysis on a crypted malware. This is by no means a universal technique so don't assume that this will occur in every scenario, it's more of a demonstration than anything really ...more

Note: a bug was found in the Insertion Sort implementations. The bug was corrected in each language. Please refer to the pastebin links for the most up-to-date versions of the sample code. Any screenshots may be behind. More about the bug can be found here. Hello World! Today ...more

In this series you will learn how to use PHP to perform attacks, gather information, and setup backdoors. Along with performing attacks you will learn how to protect yourself from them. In this part you will learn about PHP as well as install Apache and PHP. What you'll need f ...more

Hello NullByte, it's mkilic! This time I'm here with the C.H.I.P from NTC. Although it is not too popular, the C.H.I.P is a brand new micro computer. It is very similar to the Raspberry Pi or Beaglebone Black. The key difference with this particular board is its cost and size. ...more

It has been a while since my last Raspberry Pi tutorial , but now I am back with another tutorial. This one I should note isn't your typical tutorial, but as always lets boot up our Pi and wreck havoc. Kismet Although there are many tools that can grab and capture network pa ...more

How's it goin'? In this tutorial, we will learn about the security issues of the popen and system functions. I've seen a few people attempting to run command line utilities or whatever it is they require with calls to these two functions but may not know the security implicati ...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

In the last tutorial, we learned how to make functions and how they work on the high level. This time, we will take a peek under the hood again, stare deep into its soul and see its ugliness face to face to see how it works in the lower level. The Code Segment The code segme ...more

Smartphone cameras are so good nowadays that there's almost no reason to own a point and shoot. Once the megapixel spec race was finally settled (hint: more isn't always better), manufacturers started focusing on the quality of their camera sensors, which has led to a huge jum ...more

Do you have a file (or many files) that, in the wrong hands, may cause you trouble? Don't worry about it, because I'll show you how to wipe it (or them) from your computer in order to leave no trace behind. When you delete a file with the remove command (rm <file>), you're no ...more

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. The idea is to write simple scripts ...more

Welcome back, curious hackers! In today's tutorial, we will be diving deep into the manipulation of Google Operators, commonly referred to as "Google Dorks" in order to access Surveillance Cameras and other control panels. "Why would I do that?" One might ask. Good question m ...more

Hi guys, I'm gonna keep this short because I got assignments and a lot of notes to study and also other how-tos and forums to reads. lol...Since I'm keeping this short...no story time just scenario. And I want to thank n3stor for giving me the idea to post this. Scenario Let ...more

Developing GUI apps in python is really cool. I ask those who understand the language to help convert some of the command-line or console programs or apps ( I mean programs that are useful to a hacker ) to GUI. I know GUI makes us lazy and not wanna learn but we should all kno ...more

Greetings My Fellow Aspiring Hackers, Its been long since I last posted a tutorial. Its vacation and since I won't be coming home, I've decided to use my day for sharing. I was browsing through old posts and found OTW's article - Hack Like A Pro: How to Find the Exact Locatio ...more

Hello fellow grey hat hackers, as hackers it becomes necessary for us to be able to send emails anonymously. Whether for whistle blowing or pranks or social engineering or whatever, it just is necessary for us to do that. So then I tried with python smtplib but then that requ ...more

Welcome back, friends! Many times, businesses, friends, and family will lock their zip files with a password to keep their files secure. It is reasonable, and understandable. Well, thanks to hackers, there are many ways to get past this wall of security. (The idea and recourc ...more

NOTICE: Ciuffy will be answering questions related to my articles on my behalf as I am very busy. Hope You Have Fun !!! Hello Guys, Welcome to my tutorial and in this tutorial, We are going to talk as well as know of the possible dangers of metadata in our day to day images. ...more

If you've already read the first part exploring what geniuses actually eat as opposed to what the rest of us are told to eat for brain health, you've noticed that there are some big discrepancies. Instead of favoring healthy, wholesome foods high in antioxidants, lots of high- ...more

Smartphones have been around for nearly a decade now, so we've had plenty of time to develop preconceptions and bias. People that have never owned an iPhone will tell you that Apple devices are restrictive and bland, while others might say that stock Android is boring compared ...more

Greetings my fellow hackers, In the previous article, I discussed briefly about ransomwares and their devastating capabilities. Devastating in a way that ransomwares are not only known to encrypt files but to also lockout some specific functions of the system and hold it up f ...more

It's been a while since I wrote up an article for this series but I did say that I'd be covering some WinAPI. So if you're interested in programming for the Windows platform, hop aboard and follow along. Note: This is an extension of the standard C that the previous material ...more

Alright, NB community! Here we go... Bubble Sort. What Is Bubble Sort? Bubble Sort is a certain sorting algorithm that is often used as an introduction to sorting. It is not the best sorting algorithm, but it is very easy to implement and works fast with small sample sizes. ...more

Welcome to the final tutorial of the series on standard C. This article will cover the linked list abstract data type (ADT). There will be a lot of abstraction to try to deliver the understanding in the most basic way for easiest interpretation of what they are and how they wo ...more

Welcome to a tutorial on crypting technology. In this article, we will be discussing types of crypters, how they work and why they work. After defining these, we will then make our own basic crypter using the function I gave to you as a task to complete by yourself in the prev ...more

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

Greetings fellow hackers. This tutorial is about creating "safe" passwords. This is different from strong passwords. Safe passwords is just creating a password that is not used by someone else or colleague, my definition. But how do you prevent something like this from happeni ...more

In previous tutorials we have encountered these things called pointers and addresses but we still don't know what they really are. Let's learn a bit more to clear things up. What Are Pointers and Addresses? A pointer is a type of variable which as been combined with the dere ...more

Welcome to another C tutorial. We will be looking at arrays, discussing what they are, when they are used and their special relationship with the char variable. Let's begin. What Is an Array? Think of an array as a sort of container or like... a buffer. They allow us to be a ...more

Hello again, reader! In this post, we are going to cover some data types and how to declare variables. It shouldn't be too hard so just sit back, relax, grab some popcorn and enjoy the ride (while you still can!). What Is a Variable? For those who do not know, a variable is ...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

Greetings all. I'm back with another informational review of the diversity of utilities for use in the sphere of hacking at your disposal. Today we are going to cover the insides of CUPP (Common User Passwords Profiler) in its entirety. The tool is very basic in nature, as th ...more

Analysis of photographs and social connections can be a huge component of social engineering. Understanding who a person is, as well as who they know, can establish links within a company. This information could be used by hackers to execute elaborate social engineering attack ...more

In most macOS hacks, a non-root terminal is used to create a backdoor into the device. A lot of damage can be done as a low-privileged user, but it has its limitations. Think twice before granting a file permission to execute — an attacker might be able to convert your harmles ...more

Bitcoin continues to make chaotic waves in the finance industry, with one bitcoin currently worth about $1,250 as of this writing. What's great about bitcoin is that you don't need to shell out rent money to get in the game, because bitcoins can be bought in increments—basical ...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

Before I continue with a topic on strings, we first require some fundamental understanding of how memory works, i.e. what it is, how data looks in memory, etc. as this is crucial when we are analyzing vulnerabilities and exploitation. I highly suggest that your mind is clear a ...more