Understanding a Script

Welcome back, my novice hackers! This new series on Bluetooth hacking was inspired by a recent episode of Mr. Robot (my favorite TV show). In episode 6, Eliot hacked the bluetooth keyboard of the police office in order to hack the prison and release his nemesis, Vera. This is ...more

Hi nullbytes! I've been recently reading the whole Linux Basics for the Aspiring Hacker series and felt like it was missing some stuff I know, so I felt like sharing it with anyone who might find it useful too. Apt-Get I wonder why this was omitted in Chapter 5, apt-get is a ...more

Welcome back, my tenderfoot hackers! As you know, Metasploit is an exploitation framework that every hacker should be knowledgeable of and skilled at. It is one of my favorite hacking tools available. Metasploit enables us to use pre-written exploits against known vulnerabil ...more

Welcome back, my novice hackers! This next subject might seem a bit obscure, but I promise you, this lesson will benefit you significantly either as a hacker or system admin. This tutorial will cover what is usually referred to as a regular expression, or regex for short. Ma ...more

Welcome back, my greenhorn hackers! This tutorial will be the fourtenth in the Linux for hackers series and will focus on the MySQL database. Although this is not strictly a Linux tutorial, MySQL is the database of choice on most Linux distributions. In addition, it is the mo ...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

Those of you who have been a part of the Null Byte community for even a short while know that I sincerely and firmly believe that hacking is the most important skill set of the future. To further emphasize how important our skill set is, knowledgeable estimates put the potent ...more

Recently I've been looking around our wonderful community and I've seen some absolutely hands-down fantastic python scripting articles. But, in the end, these series weren't very extensive. I've been wanting to do a series on teaching python for a while now, and I don't mean j ...more

In this tutorial I am going to look at what services are running on our Metasploitable machine and setup firewalls. This is more basic scanning of our machine to get an idea of how to get in. Obviously in a real engagement you would want to do research on Google and whatnot to ...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

Today, I want to share a tutorial on one of the most useful but old methods which you could use to hack websites, that is using the Dot net nuke (DNN) vulnerability . I know some of you already know about this method. Note: This method only works if the website has the vulner ...more

Welcome back my fellow army of hackers! Today we'll be hacking a website. Hacking is technically not the right word used here. It should be defacing! So we are going to deface a website... What's Defacing? Website defacement is an attack on a website that changes the visual ...more

The upcoming web series "Crypto-Historians" does for cryptohistory what Indiana Jones did for archaeology. For those who don't know, cryptohistory is the study of supernatural or alien elements throughout history, and yes—it's a "real" field. I say "real" in quotes because it ...more

First off, I would like to say two things. One, this is not for beginners; if you don't feel that you understand this how-to at all, do not try it. Second, never ever install random software or change settings if you do not trust the source. If I haven't scared you yet, here ...more

A stager is a small piece of software that's typically used by malware to hide what's happening in the early stages of infection and to download a larger payload later. We're going to explore how it works by creating a single line that downloads and runs potentially infinite ...more

Compromised uTorrent clients can be abused to download a malicious torrent file. The malicious file is designed to embed a persistent backdoor and execute when Windows 10 reboots, granting the attacker remote access to the operating system at will. Torrent clients like uTorre ...more

By using almost any packet-crafting tool, a hacker can perform denial-of-service (DoS) attacks. With the power to create just about any packet with any characteristics, a hacker can easily find one that will take down a host or network. Nmap and Hping are effective packet mani ...more

Websites and web applications power the internet as we know it, representing a juicy target for any hacker or red team. TIDoS is a framework of modules brought together for their usefulness in hacking web apps, organized into a common sense workflow. With an impressive array o ...more

It's not uncommon for hackers to attempt to move laterally between devices in proximity of a compromised device to maintain a prolonged presence in the network. Malware utilizing USB flash sticks to self-replicate and compromise air-gapped machines isn't a new concept. In bot ...more

Leaked databases get passed around the internet and no one seems to notice. We've become desensitized to the data breaches that occur on a daily basis because it happens so frequently. Join me as I illustrate why reusing passwords across multiple websites is a truly awful prac ...more

While the security behind WEP networks was broken in 2005, modern tools have made cracking them incredibly simple. In densely populated areas, WEP networks can be found in surprising and important places to this day, and they can be cracked in a matter of minutes. We'll show y ...more

Whether you're a veteran augmented reality developer looking for a quick access point to add a new platform to your arsenal or just getting started with your first AR head-mounted display, get ready to start developing for the Meta 2. In this short breakdown, we'll use the Un ...more

The HoloToolkit offers a great many, simple ways to add what seems like extremely complex features of the HoloLens, but it can be a bit tricky if you're new to Windows Holographic. So this will be the first in an ongoing series designed to help new developers understand what e ...more

While you can't turn art into a formula, the film industry has managed to come stupidly close. While many storytelling principles still stand across mediums, successfully crafting a compelling, immersive narrative in virtual reality requires a brand new rulebook. Through trial ...more

Fugu - a simple virus in bash. I once told a friend of mine I'd written a virus in bash and he scoffed - "You can't write a virus in bash!" - he sniggered, like an ignorant idiot. Take my script, read and run it I told him. He declined. I still have that script so thought I ...more

Welcome back! In the last training session we covered how to write and execute scripts. But today we'll be getting back to the code! Today we'll be covering something that is extremely important for building real-life applicable scripts, file input and output. When I say "... ...more

Greetings to all geeks, hackers, nerds, and explorers of Null Byte. Welcome to my brand new tutorial, "Using BASH for Computer Forensics". This tutorial will give you a look at how the computer programming language, Bash, can be used to find out details on apple devices for la ...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

Welcome finally, to a tutorial on buffer overflows! At last we have reached an exciting part of this series where I will dedicate the entire article on explaining and exploiting the notorious vulnerability. Grab some popcorn, sit back and enjoy the show. What Is a Buffer Over ...more

Hello everyone. I've recently made the annoucement of the Null Byte suite of tools, and we've covered how to download and install it. Now it's time we cover how to submit a tool for inclusion into the suite. It's relatively simple, but we need to get a few ground rules out of ...more

Well, first things firsts, it's been awhile! I'm sorry the series has been dead for a little bit, but I recently hit some personal relationship issues and needed to take some time to think. But, now that it's all said and done, the dust can settle and we can start training aga ...more

SET is great when you have a short space of time at hand, however sometimes you want to know whats actually going on under the hood or have found a site you can't clone with SET. Step 1: Select Your Target! The First Thing You're Going to Want to Do Is Select the Site Login ...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

At last, what you all finally waited for! Hi! Fire Crackers, Welcome to my 7th post (Part-3), this tutorial will explain about some situations and how to make the Victim's Life like Hell! And fill his system with Malware. #1 Situation: After Exploiting... Go ahead and explo ...more

Welcome back, my rookie hackers! In my ongoing attempts to familiarize aspiring hackers with Linux (nearly all hacking is done with Linux, and here's why every hacker should know and use it), I want to address a rather obscure, but powerful process. There is one super process ...more

Hi there, Elites Welcome to my 6th post, This tutorial will explain how to hack windows, using a program (No-IP) and windows's inbuilt Task Scheduler. Meanings... Task Scheduler: It is a program, inbuilt in windows, which allows us to create some tasks and execute them at s ...more

While Apple's Continuity feature has certainly impressed me, I can't help but feel like it could be used to create a better connection between my iPhone and Mac. Sure, Handoff allows me to pick up where I left off in certain applications between the two devices, and it lets me ...more

Voicemails are like chores for me. I have to listen to them, but never really feel like doing it. When I finally do, most of them get deleted right away, but every so often they'll be one I save and listen to over and over again, whether it's a cute birthday wish from grandma ...more

Welcome back, my budding hackers! As you know, I firmly believe that to be a true professional hacker, you need to be proficient in Linux. This is for a number of good reasons. Most hacker tools are developed in Linux (well over 90 percent). Linux offers us greater granulari ...more

Welcome back, my novice hackers! We've done a number of tutorials using one of my favorite hacking tools, Metasploit. In each of them, we've used the msfconsole, which can be reached through either the menu system or through simply typing "msfconsole" from the terminal. This ...more

Welcome back, my rookie hackers! The more we know about a system or network, the better our chances of owning it and not leaving a trace for investigators to follow. One of the often overlooked sources for information is the Simple Network Management Protocol (SNMP). Many roo ...more

Welcome back, my fellow hackerians! Today we'll be hacking Facebook profiles on your local network. You may think, "How is this useful, nobody but me is using my network." Well, you can use this on other Wi-Fi networks that are available for free (like at Starbucks) and crack ...more

The Windows 10 desktop and microphone can be livestreamed without using Remote Desktop Protocol (RDP) software and without opening any ports on the target computer. A hacker with low user privileges can monitor and exfiltrate a target's every move and private conversation in r ...more

If you want to get started sniffing Wi-Fi networks, you usually need to start with a wireless network adapter. But thanks to a Wi-Fi sniffing library written in Arduino and the ultra-cheap ESP8266 chip, you might not need one. For less than $10 in electronics, you can build a ...more

To hack a Wi-Fi network, you need your wireless card to support monitor mode and packet injection. Not all wireless cards can do this, but you can quickly test one you already own for compatibility, and you can verify that the chipset inside an adapter you're thinking of purch ...more

The macOS 10.14 security update tried to make parts of the operating system difficult for hackers to access. Let's take a closer look at how its new feature works and what we can do to spoof the origin of an application attempting to access protected data. Apple introduced so ...more

You may have heard of a signal jammer before, which usually refers to a device that blasts out a strong enough radio signal to drown out the reception of nearby devices like cell phones. Purpose-built jammer hardware is outright illegal in many countries. Still, Wi-Fi is vulne ...more

Wi-Fi tools keep getting more and more accessible to beginners, and the LAZY script is a framework of serious penetration tools that can be explored easily from within it. This powerful and simple tool can be used for everything from installing new add-ons to grabbing a WPA ha ...more

A powered-off Windows 10 laptop can be compromised in less than three minutes. With just a few keystrokes, it's possible for a hacker to remove all antivirus software, create a backdoor, and capture webcam images and passwords, among other highly sensitive personal data. The ...more

There's no doubt Kali has established itself as the most popular penetration distribution available. However, just because it's the fan favorite of beginners and security researchers doesn't make it right for everyone. Manjaro Linux is a beginner-friendly Arch-based distributi ...more

Millions of travelers pass through airports each day without understanding how powerful and insecure a boarding pass can be. Anyone can scan the boarding pass barcode with a mobile app, allowing access to frequent-flyer accounts and even a passenger's temporary airline account ...more

The public leaks of NSA tools and information have led to the release of previously secret zero-day exploits such as EternalBlue, which was used in the notorious WannaCry ransomware attack. Despite multiple patches being released, many users have failed to update their systems ...more

Brute-forcing is an easy way of discovering weak login credentials and is often one of the first steps when a hacker finds network services running on a network they gain access to. For beginners and experienced hackers alike, it's useful to have access to the right tools to d ...more

UnrealIRCd is an open-source IRC server that has been around since 1999 and is perhaps the most widely used one today. Version 3.2.8.1 was vulnerable to remote code execution due to a backdoor in the software. Today, we will be exploiting the vulnerability with Metasploit, exa ...more

While you might suspect your MacOS computer has been infected with malware, it can be difficult to know for sure. One way to spot malicious programs is to look for suspicious behavior — like programs listening in on our keyboard input or launching themselves every time we boot ...more

While hackers know and love the Raspberry Pi, many don't know of its cheaper cousin, the microcontroller. Unlike a Pi, which can be used more or less like a regular computer, microcontrollers like the Wi-Fi connected ESP8266 require some necessary programming skill to master. ...more

Apple's macOS operating system is just as vulnerable to attacks as any Windows 10 computer or Android smartphone. Hacker's can embed backdoors, evade antivirus with simple commands, and utilize USB flash drives to completely compromise a MacBook. In this always-updated guide, ...more

While hackers have taken advantage of numerous vulnerabilities in Adobe's products to deliver payloads to Windows users via PDF files, a malicious PDF file can also wreak havoc on a Mac that's using the default Preview app. So think twice before double-clicking a PDF open on y ...more

Hak5's products get a lot of attention. Popping up in popular shows like Mr. Robot, their hacking tools are bold proof of concepts with space built into the design for the community to add their own tweaks and modifications. On Friday, Oct. 27, Null Byte attended the Hak5 rele ...more

The Operative Framework is a powerful Python-based open-source intelligence (OSINT) tool that can be used to find domains registered by the same email address, as well as many other investigative functions. This reconnaissance tool provides insight about your target through ex ...more