This holiday season, give yourself a gift that will keep on giving: a new web development skill. Whether it's to secure lucrative freelance work in the new year, bolster your résumé, or have fun with some frankly outrageous discounts on online course bundles right now (up to 9 ...more
Gathering information on an online target can be a time-consuming activity, especially if you only need specific pieces of information about a target with a lot of subdomains. We can use a web crawler designed for OSINT called Photon to do the heavy lifting, sifting through UR ...more
Developers creating login systems know better than to store passwords in plain text, usually storing hashes of a password to prevent storing the credentials in a way a hacker could steal. Due to the way hashes work, not all are created equal. Some are more vulnerable than othe ...more
The internet is constantly under siege by bots searching for vulnerabilities to attack and exploit. While conventional wisdom is to prevent these attacks, there are ways to deliberately lure hackers into a trap in order to spy on them, study their behavior, and capture samples ...more
Encrypting payloads and encoding stagers are more effective against macOS than one might think. It's very easy to evade VirusTotal and macOS antivirus software using a few simple tricks. The goal of this project was to locate a known and easily detectable macOS payload, then ...more
When we are building programs that communicate over a network, how can we keep our data private? The last thing we want is some other lousy hacker sniffing our packets, so how do we stop them? The easy answer: encryption. However, this is a very wide-ranging answer. Today we'r ...more
Password cracking is a specialty of some hackers, and it's often thought that raw computing power trumps everything else. That is true in some cases, but sometimes it's more about the wordlist. Making a custom, targeted wordlist can cut down cracking time considerably, and Wor ...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
Welcome back, my greenhorn hackers! The Holy Grail of any hacker is to develop a zero-day exploit—an exploit that has never been seen by antivirus (AV) and other software developers, as well as intrusion detection system (IDS) developers. In that way, you can exploit systems ...more
Hi everyone This is something that I should've done the first day but hey...better later than never right? So...I'm a 16 years old aspiring hacker , i'm not a beginner but i'm definitely not a pro/elite hacker like sir OTW or Phoenix750 but that's what i am aiming at...reach ...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
Many popular IoT devices have terrible security. For instance, a hacker who's on the same Wi-Fi network as a Sonos speaker can assume direct control over the device's behavior. If an IoT device doesn't secure the messages used to control it over a network, it's easy for somebo ...more
While hackers adore the command line, working with the GUI (graphical user interface) of an operating system has some advantages. This is especially true when it comes to post-exploitation. When we can control the mouse and keyboard of a remote computer, we can truly say we ha ...more
Phone numbers often contain clues to the owner's identity and can bring up a lot of data during an OSINT investigation. Starting with a phone number, we can search through a large number of online databases with only a few clicks to discover information about a phone number. I ...more
Passwords and data stored in web browsers are extremely valuable to hackers. If not for financial gain, black hat hackers may still leak your passwords and personal information for amusement. Never undervalue what you're worth to a hacker. While I'm definitely no black hat, d ...more
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 ...more
Welcome back everyone. I apologize for the lack of training articles, but I've been rater busy lately. I've recently picked up a second job and my college courses are now back in session, so I'm a bit strapped for time. FTP is a very important protocol. It's not only importan ...more
Common programming blunders can be your best friend when trying to craft your own exploits. If you spend a little time reading what some of these common blunders are, they can uncover potential attack vectors or just show you the weird ways in which computers can store and rec ...more
If you remember last time, we successfully uploaded picture with a small hidden PHP command executer embedded in it onto a server. Now, our goal is to take this a step further and get an interactive shell. To do this, we need to upload another file that either binds a port for ...more
Welcome back, my tenderfoot hackers! Have you ever wondered where the physical location of an IP address is? Maybe you want to know if that proxy server you are using is actually out of your local legal jurisdiction. Or, maybe you have the IP address of someone you are corres ...more
Welcome back, my amateur hackers! In this tutorial, we will follow up on a previous tutorial on MySQL. In that tutorial, I showed you the basics of running a MySQL server on BackTrack. In addition, you might want to take a look at my tutorial on the basics of databases, if yo ...more
When setting up a Raspberry Pi, it's easy to overlook changing the default password. Like many IoT devices, the Raspberry Pi's default Raspbian operating system installs with a widely-known default password, leaving the device vulnerable to remote access. Using a tool called r ...more
For a hacker, there are a lot of advantages to creating a fake network. One advantage forces nearby devices to use their real MAC address if you happen upon a network that's stored in their preferred network list. There are a lot of tools out there for creating fake access po ...more
QR codes are everywhere, from product packaging to airline boarding passes, making the scanners that read them a juicy target for hackers. Thanks to flaws in many of these proprietary scanning devices, it's possible to exploit common vulnerabilities using exploits packed into ...more
MouseJack vulnerabilities were disclosed over three years ago. Some wireless keyboard manufacturers have since issued firmware updates, but millions (if not billions) of keyboards remain unpatched worldwide, either because they can't be updated or because the manufacturer neve ...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
Using Netcat to backdoor a macOS device has its short-comings. If the compromised Mac goes to sleep, the Netcat background process will occasionally fail to terminate correctly; This leaves Netcat running infinitely in the background and the attacker with no new way into the d ...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
Welcome back, my greenhorn hackers! Recently, I asked the Null Byte community what subject they would most like me to cover in future tutorials. Many of you cited scripting, and I decided it's best to cover this subject soon, so here goes. Any self-respecting hacker must be ...more
Design flaws in many routers can allow hackers to steal Wi-Fi credentials, even if WPA or WPA2 encryption is used with a strong password. While this tactic used to take up to 8 hours, the newer WPS Pixie-Dust attack can crack networks in seconds. To do this, a modern wireless ...more
Hello and welcome to my article. I have made this article for anyone who wants to become a hacker, and wants to know how to get started. OVERVIEW: As you'll get further into the hacking community, and learn more about how it's all put together, you'll also realize very quick ...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
A powered-off MacBook can be compromised in less than three minutes. With just a few commands, it's possible for a hacker to extract a target's password hash and crack it without their knowledge. The goal in this article is to acquire a target's .plist file which contains the ...more
Most companies have services like employee login portals, internal-only subdomains, and test servers they would prefer to keep private. Red teams and white hat hackers can find these obscure and often vulnerable services using a tool designed to help protect users from fraudul ...more
Open-source data scraping is an essential reconnaissance tool for government agencies and hackers alike, with big data turning our digital fingerprints into giant neon signs. The problem is no longer whether the right data exists, it's filtering it down to the exact answer you ...more
With some of the groundwork out of the way in getting a Mac set up for hacking, it's time to start looking at toolboxes. Our first toolbox is Git, which will be used throughout future tutorials. Git is currently the most widely used version control system (VCS) in the world, ...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
There are countless ways in which you can turn your love of tech and coding into a full-fledged career — from developing apps and websites as a freelancer to working in the IT departments of small startups or major tech companies. But one of the best ways that you can put your ...more
When it comes to sniffing Wi-Fi, Wireshark is cross-platform and capable of capturing vast amounts of data. Making sense of that data is another task entirely. That's where Jupyter Notebook comes in. It can help analyze Wi-Fi packets and determine which networks a particular p ...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
Knowing just one or two programming languages is no longer sufficient if you want to make serious money in the lucrative world of web design and development. But the good news is that you don't need to spend an excessive amount of time or money on a traditional coding educatio ...more
Whether you're looking to add a substantial coding foundation to your hacking skill set or want to get a job in programming and development, knowing one or two programming languages just isn't going to cut it. If you're a regular Null Byte reader, you know that a lot of the h ...more
The one thing that separates a script kiddy from a legitimate hacker or security professional is the ability to program. Script kiddies use other people's tools, while hackers and security pros write their own tools. To that end, we're going to see how a stack overflow vulnera ...more
Hello, Null Byters. I'm Barrow, and I'm excited to introduce myself as the new admin here on Null Byte. Just like previous admins have done before me, I will be writing new guides, updating older guides if they need it, and responding to some of your issues in the forum. Befor ...more
It seemed appropriate that we announce the winner of the first White Hat Award for Technical Excellence on the Academy Awards weekend. This is, in essence, our "Oscar" here at Null Byte. Remember, this contest began on January 4th, 2016 and just recently closed on February 15t ...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
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
Ruby is a dynamic, general-purpose programming language created by Yukihiro "Matz" Matsumoto in Japan around the mid-90's. It has many uses but with it's flexibility, it makes a great language to write exploits in. In fact, the entire Metasploit Framework is written in Ruby! T ...more
Greetings null-bytians. Firstly, I would like to apologize for the no images thing. I guess I can't upload them. If you have watched the documentary titled "In the Realm of the Hackers", the one about two Australian hackers, Electron and Phoenix, you will know that it was a g ...more
Welcome back, my novice hackers! As we saw in my first tutorial on Facebook hacking, it is not a simple task. However, with the right skills and tools, as well as persistence and ingenuity, nothing is beyond our capabilities. One of the cardinal rules of hacking is: "If I ca ...more
Sniffing packets over a network is an easy way for hackers to gather information on a target without needing to do much work. But doing so can be risky if sniffing packets on an untrusted network because a payload within the packets being captured could be executed on your sys ...more
Websites are often misconfigured in ways that allow an attacker to view directories that are not ordinarily meant to be seen. These directories can contain sensitive information such as private credentials or configuration files that can be used to devise an attack against the ...more
Passwords stored in web browsers like Google Chrome and Mozilla Firefox are a gold mine for hackers. An attacker with backdoor access to a compromised computer can easily dump and decrypt data stored in web browsers. So, you'll want to think twice before hitting "Save" next ti ...more
After exploiting a vulnerable target, scooping up a victim's credentials is a high priority for hackers, since most people reuse passwords. Those credentials can get hackers deeper into a network or other accounts, but digging through the system by hand to find them is difficu ...more
Metasploit is an extremely popular pentesting tool capable of enumeration, exploitation, and injecting shell code, and is a part of almost every hacking toolkit. So there's no way I could leave this out of our series on getting your Mac set up for hacking. Luckily for those o ...more
Welcome back, my novice hackers! As many of you know, recon is crucial to a successful hack/pentest. In most cases, hackers spend more time doing good reconnaissance than actually hacking. Without proper recon, you are simply guessing at what type of approach or exploit is go ...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
Do you ever thought that you can't control an Internet disconnected system? I saw a funny video in Chema Alonso's youtube channel (A well-known hacker of my country and creator of Fingerprinting Organizations with Collected Archives among other security tools), and decided to ...more
Hello my fellow hackers, Welcome to my republished revision of the ruby programming language, Part 1. Today, we will try to build an ftp cracker in ruby: This is going to be a quick one since OTW has already made one in python and we are gonna look upon that to create a simil ...more