How to Do Kali

Welcome back, my budding hackers! Metasploit, one of my favorite hacking/pentesting tools, has so many capabilities that even after my many tutorials on it, I have only scratched the surface of it capabilities. For instance, it can be used with Nexpose for vulnerability scann ...more

Welcome back, my amateur hackers! Over the course of the next year, we will be developing our own zero-day exploits. In my first article in this series, I introduced you to buffer overflows, which are the source of some of the most lethal exploits, particularly the "remote co ...more

Welcome back, my tenderfoot hackers! A short while ago, I started a new series called "How to Spy on Anyone." The idea behind this series is that computer hacking is increasingly being used in espionage and cyber warfare, as well as by private detectives and law enforcement t ...more

Once a hacker has created a PowerShell payload to evade antivirus software and set up msfconsole on their attack system, they can then move onto disguising their executable to make it appear as a regular text file. This is how they will get a Windows 10 users to actually open ...more

A simple security flaw can allow an attacker to gain a strong foothold with little effort on their part. When a web application permits remotely hosted files to be loaded without any validation, a whole can of worms is opened up, with consequences ranging from simple website d ...more

After a hacker has configured Metasploit on a remote private server, created a resource script for automation, and created a simple payload, he or she can begin the process of remotely controlling someone's Windows 10 computer with just a few moments of physical access — even ...more

Welcome back, my hacker novitiates! When we are trying to find vulnerabilities in a website to attack, we need a solid web server vulnerability scanner. Internet-facing web apps can open enormous opportunities for us as they are often riven with vulnerabilities and can often ...more

Welcome back, my hacker novitiates! In previous guides, we have used one of the most powerful hacking platforms on the planet, Metasploit, to perform numerous hacks. They ranged from exploiting Windows XP and Windows 7/8 vulnerabilities, to installing a keylogger and turning ...more

While the USB Rubber Ducky is well known by hackers as a tool for quick in-person keystroke injection attacks, one of the original uses for it was automation. In this guide, I'll be going the latter, explaining how we can use it to automate Wi-Fi handshake harvesting on the Ra ...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

The Raspberry Pi loads an operating system from whatever SD card you insert, allowing you to keep different operating systems on separate SD cards depending on which OS you wish to run. A tool called BerryBoot cuts down on the number of SD cards needed by providing the ability ...more

With all of the bare-bones setup out of the way in our Mac for Hackers series, your Apple machine should be ready to run a significant amount of pentesting tools. We can pull tools from GitHub and compile them, we can pull dependencies or tools from Homebrew, we have both Pyth ...more

Don't think because your MacBook is using FileVault disk encryption your device is secure or immune to hackers. Here's how to find out if that FileVault password is strong enough to withstand an attack from a motivated attacker. FileVault, created by Apple in 2003, is a hard ...more

Welcome back, my greenhorn hackers! In recent weeks, the Heartbleed vulnerability of OpenSSL has been dominating the information security headlines. This vulnerability enables an attacker to extract data from the server's memory that may contain authentication credentials, co ...more

The microphone in a Windows computer is accessible to most applications running on the device at all times and completely without security limitations. Information gathered from recorded audio conversations taking place in the surrounding area of a compromised computer can be ...more

Very often we have processes in Linux that we want to always run in the background at startup. These would be processes that we need to start at bootup and always be available to us. If we are running a Linux distribution with a GUI (graphical user interface) like Kali or Ubu ...more

Before we dive into the world of frustration, I first would like to thank whoever of the admins and mods made the folder for Raspberry Pi in the How-To's, thank you. Now with that outta the way, this article is about Metasploit on Raspberry Pi (hence the title). I should say t ...more

Hi Folks. This is my first post. I will teach how to create a server and client python reverse shell using sockets and python language. The script i'll post here is going to be very simple, and from here you'll have the possibility to adapt to your own purpose. For example, my ...more

Metadata contained in images and other files can give away a lot more information than the average user might think. By tricking a target into sending a photo containing GPS coordinates and additional information, a hacker can learn where a mark lives or works simply by extrac ...more

Welcome back, my nascent hackers! In previous tutorials for my Wi-Fi Hacking series, I have shown you how to crack WEP and WPA2 passwords, break a WPS PIN, and create Evil Twin and Rogue access points. In this continuation of the series, let's look at slightly different appro ...more

If you've ever needed to prove you have remote access to a device, or simply want a way to convince someone their computer is haunted, SSH can be used to make a device begin to show signs of being possessed. Spooky Action at a Distance If you need to prove you've got remote ...more

Using Hydra, Ncrack, and other brute-forcing tools to crack passwords for the first time can be frustrating and confusing. To ease into the process, let's discuss automating and optimizing brute-force attacks for potentially vulnerable services such as SMTP, SSH, IMAP, and FTP ...more

Welcome back, my tenderfoot hackers! Web apps are often the best vector to an organization's server/database, an entry point to their entire internal network. By definition, the web app is designed to take an input from the user and send that input back to the server or datab ...more

Welcome back, my neophyte hackers! There are innumerable ways to hack a system. We must not overlook any of the possibilities if we want to "own" the system. As systems become more and more secure, we need to be vigilant in our search for weaknesses. In this hack, we'll look ...more

Hey guys, I am back this time with a small trick. Many of us do not like the old background in GRUB BOOT LOADER, you might be using kali linux or any other linux and using GRUB BOOT LOADER then this is for you. Step 1: Navigating to the Folder First of all,open root directo ...more

Welcome back, my fledgling hackers! In an earlier tutorial, I introduced you to probably the most popular scripting language for hackers, Python. To become a professional hacker, you need to have some scripting skills and Python is a good choice if you want to master just one ...more

Imagine this scenario: You exploited a system using metasploit and you want to install a backdoor. You have a few options; Use the meterpreter persistence command. Use the meterpreter metsvc command. Use netcat to listen on a port continuously. You have already tried option ...more

There are many password-cracking tools out there, but one of the mainstays has always been John the Ripper. It's a powerful piece of software that can be configured and used in many different ways. Metasploit actually contains a little-known module version of JTR that can be u ...more

Having an efficient workflow is an integral part of any craft, but it's especially important when it comes to probing apps for vulnerabilities. While Metasploit is considered the de facto standard when it comes to exploitation, it also contains modules for other activities, su ...more

With an inconspicuous Android phone and USB flash drive, an attacker can compromise a Windows 10 computer in less than 15 seconds. Once a root shell has been established, long-term persistence to the backdoor can be configured with just two simple commands — all while bypassin ...more

Many online users worry about their accounts being breached by some master hacker, but the more likely scenario is falling victim to a bot written to use leaked passwords in data breaches from companies like LinkedIn, MySpace, and Tumblr. For instance, a tool called H8mail can ...more

Welcome back, my novice hackers! In this continuing series on Metasploit basics, let's next look at a module that many aspiring hackers find useful—autopwn. Generally, when we are trying to hack a target, we want to know as much as possible about the target through reconnais ...more

Welcome back, my tenderfoot hackers! In this series, we are exploring the myriad of ways to hack web applications. As you know, web applications are those apps that run the websites of everything from your next door neighbor, to the all-powerful financial institutions that ru ...more

Welcome back, my hacker apprentices! To enter the upper echelons of hackerdom, you MUST develop scripting skills. It's all great and well to use other hacker's tools, but to get and maintain the upper hand, you must develop your own unique tools, and you can only do that by d ...more

With a simple social engineering trick, sudo passwords can be captured in seconds without the target's knowledge. The passwords can then be saved to a file or exfiltrated to another computer on the network. After exploiting a system, penetration tester's and hackers will ofte ...more

Due to weaknesses in the way Wi-Fi works, it's extremely easy to disrupt most Wi-Fi networks using tools that forge deauthentication packets. The ease with which these common tools can jam networks is only matched by how simple they are to detect for anyone listening for them. ...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

The octopus is famous for its bulbous head, enormous eyes, and four pairs of long arms. The stuff of legends and nightmares, octopi have been featured in stories, artwork, and meals galore. But how do you eat this distinctive looking, bilaterally symmetrical sea creature? Her ...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

Whether you're white hat, black hat, or some shade in-between, navigating through a network is a core part of hacking. To do that, we need to be able to explore a network to discover the addresses of gateways, interfaces, and other attached devices. When ifconfig just isn't en ...more

Hashes containing login passwords are transmitted between Windows computers on local Wi-Fi networks. By intercepting and decrypting these hashes using Responder and John the Ripper, respectively, we can learn a target's login credentials which can be later used to gain physica ...more

In this article, we will explore the basics of radare2, a powerful package that comes with Kali. We are going to write a simple program, and then disassemble it, to see what is really doing in the processor. I will use Kali version 1 and x86 (64 bits) instructions. Not all ar ...more

Welcome back, my neophyte hackers! In the world of information security, the most common intrusion detection system (IDS) you will ever encounter is Snort. As you probably already know, an IDS works similarly to antivirus (AV) software on your desktop; It attempts to identify ...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

Passwords on Windows are stored as hashes, and sometimes they can be tough to crack. In certain situations, though, we can get around that by using the hash as is, with no need to know the plaintext password. It's especially interesting if we can manage to get the hash of an a ...more

One of the first steps when pentesting a website should be scanning for hidden directories. It is essential for finding valuable information or potential attack vectors that might otherwise be unseen on the public-facing site. There are many tools out there that will perform t ...more

Hello readers, and welcome to Null Byte. Before we start, for those of you who may not know me, my name is ghost_; I'm a relatively active member of our community and have been around for a while. During my time here, I've seen our community cultivate into the brilliant one ...more

Web application vulnerabilities are one of the most crucial points of consideration in any penetration test or security evaluation. While some security areas require a home network or computer for testing, creating a test website to learn web app security requires a slightly d ...more

Defcon is the largest hacker conference with something for everyone, whether it be the talks, parties, villages, or any of the hundreds of events. In this guide, we'll take a holistic view at everything that goes into attending the con for the first time, from securing your el ...more

Welcome back, my novice hackers! Previously in my "Spy on Anyone" series, we used our hacking skills to turn a target's computer system into a bug to record conversations and found and downloaded confidential documents on someone's computer. In this tutorial, I will show you ...more

Conducting phishing campaigns and hosting Metasploit sessions from a trusted VPS is important to any professional security researcher, pentester, or white hat hacker. However, the options are quite limited since most providers have zero-tolerance policies for any kind of hacki ...more

Do you remember my last article on how to hook any web browser with MITMf and BeEF? Well, we are using the tool once again, but this time for auto-backdooring.... How It Works MITMf (if you don't already know) is a man in the middle attack framwork. MITMf literally stands fo ...more

When hacking into a network during a penetration test, it can sometimes be useful to create your own wireless AP simply by plugging a Pi into an available Ethernet port. With this setup, you have your own backdoor wireless connection to the network in a matter of seconds. Crea ...more

Welcome back, my tenderfoot hackers! One of the issues we often encounter with Metasploit is how to add new modules. Although Rapid7 (Metasploit's owner and developer) periodically updates Metasploit with new exploits, payloads, and other modules, at times, new modules appear ...more

Nmap is more powerful than you know. With a few scripts, we can extend its functionality beyond a simple port scanner and start to identify details about target servers sysadmins don't want us to know. Possibly the most popular and well-known reconnaissance tool currently ava ...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

Who am I? First let me introduce myself. I am Th3skYf0x, an -well lets call it experienced- hacker and i recently found this site and right after that i found this Null Byte "world" soo i thought... Why not teaching instead of doing nothing with my knowledge. Let me get one ...more

One of the best ways to improve your skills as a hacker is to learn to combine different avenues of attack to achieve success. What if it were possible to get a victim to connect to our machine and execute a chosen payload on our behalf? This is indeed possible with the almigh ...more

Hundreds of Windows 10, macOS, and Linux vulnerabilities are disclosed every single week, many of which elude mainstream attention. Most users aren't even aware that newly found exploits and vulnerabilities exist, nor that CVEs can be located by anyone in just a few clicks fro ...more

Hackers rely on good data to be able to pull off an attack, and reconnaissance is the stage of the hack in which they must learn as much as they can to devise a plan of action. Technical details are a critical component of this picture, and with OSINT tools like Maltego, a sin ...more