Code 9

The conversation of which operating system is most secure, macOS vs. Windows, is an ongoing debate. Most will say macOS is more secure, but I'd like to weigh in by showing how to backdoor a MacBook in less than two minutes and maintain a persistent shell using tools already bu ...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

UPDATE: This post is outdated, the latest version with the correct links and updated instructions can be found at my blog, here - https://techkernel.org/2015/12/19/embed-metasploit-payload-in-apk-manually/ Hi guys, I'm here again with my second tutorial, as I promised. Metas ...more

In my last article, I explained why text adventure games are some of the most Steampunk computer games out there. I even shared a free Steampunk text adventure game that I'd made myself! Now, I grew up playing text-based games (which are now known as interactive fiction) such ...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

When joining a new network, computers use the Address Resolution Protocol to discover the MAC address of other devices on the same network. A hacker can take advantage of ARP messages to silently discover the MAC and IP address of network devices or actively scan the network w ...more

Computers all over the world rely on a program called "libssh" to use the SSH communications protocol, which allows trusted users to log in and administer computers remotely. Due to a flaw in libssh, fooling a computer into granting SSH access is as easy as telling it you alre ...more

Being able to write your own hacking tools is what separates the script kiddies from the legendary hackers. While this can take many forms, one of the most coveted skills in hacking is the ability to dig through the binary files of a program and identify vulnerabilities at the ...more

You probably know of Apple's Text Replacement feature for iOS, iPadOS, and macOS, but you're probably not using it as much as you should. With it, you can create your own keyboard triggers for almost anything you can think of, whether it's an email address or an entire email. ...more

After nearly two months of beta testing, Apple is finally pushing the iOS 15.6 software update to all iPhone users. While it's not as feature-rich as the iOS 15.5 or iOS 15.4 that came before it, there are still a few things you'll want to know about it. The iOS 15.6 update w ...more

MicroPython is an exciting language to use on ESP8266 boards and ESP32-based microcontrollers, but it doesn't always include all of the libraries you'll need for a specific project. This issue is less of a problem, thanks to the upip package manager. Upip lets you download an ...more

Everybody knows not to store sensitive information in unencrypted files, right? PDFs and ZIP files can often contain a treasure trove of information, such as network diagrams, IP addresses, and login credentials. Sometimes, even certain files that are encrypted aren't safe fro ...more

Automation has been a buzz word for quite some time now, but the principles behind it are as strong as ever. For a hacker or pentester, Bash scripting is one form of automation that cannot be ignored. Virtually any command that can be run from the terminal can be scripted — an ...more

One of the most exciting things as an ethical hacker, in my opinion, is catching a reverse shell. But often, these shells are limited, lacking the full power and functionality of a proper terminal. Certain things don't work in these environments, and they can be troublesome to ...more

Airgeddon is a multi-Bash network auditor capable of Wi-Fi jamming. This capability lets you target and disconnect devices from a wireless network, all without joining it. It runs on Kali, and we'll cover installing, configuring, and using its jamming functionalities on a smal ...more

You've seen it in action before, but now it's finally got a solid release date, well... release month. The newest version of the Sony Ericsson Xperia PLAY was unveiled at MWC 2011 today and will be available for purchase globally in March 2011 (in selected markets), which is ...more

Ever wonder how all of those tiny chips and components can fit inside your laptop or smartphone? If you tried to squeeze them in there yourself, your laptop would quickly become too heavy for your lap, and your mobile phone would need wheels to stay mobile. The secret to mini ...more

Today, we are going to combine what we learned from the Introduction to Cryptography article with our Java programming skills. If you are new to Java, check out Matthew's Learn Java: Part One for a quick beginner's lesson, or check out some of the Java tutorials directly on Or ...more

The developer community has already made some incredibly quick progress on implementing assemblers, interpreters, and emulators for the proposed virtual computer in 0x10c, Notch's latest game. But the truth is that the majority of programmers out there couldn't be bothered wit ...more

Today isn't actually Pi Day, but I was unable to get this article out in time. Pi Day was actually yesterday, March 14th (3.14), so let's call this a post-Pi Day treat! I've usually stuck to computers and security in the past, so I thought I'd toss things up a bit and give yo ...more

Hi again, Just wanted to share a neat little code that I found way back, when I was presented with a spreadsheet which was locked and asked to ''unlock'' it or do whatever it takes to enable the user to edit it's contents. Well, I'm not one to say nay to a challenge, however ...more

Welcome to another Community Byte announcement! In the past two sessions, we have coded an IRC bot in Python capable of issuing commands. Since it can issue commands and most of you are new to programming, that project will stay idle for a while. Other commands such as voice a ...more

Beginning this week, Null Byte will be hosting a new feature called Community Byte, a weekly coding and hacking session held in the Null Byte IRC. This is a chance for our community to do something fun, and make something awesome together! The weekly community projects are ge ...more

To go Open Source or go proprietary? There is a common conception that open-source is unsafe and insecure and therefore companies should rather go for proprietary solutions. They think that because software is termed "open-source", that the world can see the vulnerabilities of ...more

Apple just released its iOS 16.6 update for iPhone on July 24. When you install the new software, it may look like there's not much to it since Apple doesn't include any features in the release notes beyond "important bug fixes and security updates," but a few new features are ...more

You might have missed it, but the virtual keypad you use to enter phone numbers in your smartphone's dialer and contacts app isn't all numbers. Take a closer look, and you'll notice a few mysterious buttons you've likely been tuning out unconsciously. But it's time to stop ign ...more

The USB Rubber Ducky is a well-known hacking device in the cybersecurity industry, but it needs to be preprogrammed before it can be used. That means it's not easy to issue commands to a target computer since you can't interact with it from afar after plugging it in. And if yo ...more

Last week, I updated VirtualBox on my computer since I had skipped a few versions, then I could no longer copy text or paste text from my Kali virtual machine to my host OS and vice versa. Installing the Guest Additions didn't seem to do anything, and the bidirectional shared ...more

A macOS computer can reveal a lot of information about the owner, including which Wi-Fi network they have permission to access. With an Arduino-based attack, we'll use a five-dollar setup to inject a rogue Wi-Fi network and steal the list of trusted Wi-Fi networks, allowing us ...more

One of the coolest aesthetic features of iMessage is its animated message effects. If you're like many users, you might even have discovered them by accident, where wishing your friend a "Happy Birthday!" or congratulating them on a promotion unexpectedly flooded your screen w ...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

In the first guide, we laid the groundwork for our ultimate goal of uploading and running the unix-privesc-check script on our target. We identified an input field vulnerable to SQL injection and utilized Sqlmap to set up a file stager on the server. Now, we're ready to upload ...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

Although the Galaxy Note 9 is an amazing phone, many members of the Android community won't even look at it. This isn't just because of the Samsung Experience skin, but the large amount of bloatware that comes with this device. However, with a little work, you can remove all o ...more

It's important to know who you're dealing with after hacking your target's MacBook. Getting remote access is simple, but covertly gathering information about the user and their system can be a challenge. Continuing with our situational awareness attacks, we'll be further orie ...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

Wi-Fi devices are continually emitting "probe frames," calling out for nearby Wi-Fi networks to connect to. Beyond being a privacy risk, probe frames can also be used to track or take over the data connection of nearby devices. We'll explain how to see nearby devices emitting ...more

With the rise of website encryption (TLS), sniffing passwords from network activity has become difficult. However, it's still possible to quietly exfiltrate a target's network traffic in real time to extract passwords and sensitive information. Pertaining to macOS, there are t ...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

Command injection is a technique used by hackers to execute system commands on a server, usually via a web application or some kind of GUI. This can happen when an application provides some sort of functionality to the user involving the use of system commands. When the input ...more

Hackers are always seeking zero-day exploits that can successfully bypass Windows 10's security features. There has been extensive research into creating undetectable malware and entire GitHub projects dedicated to automating the creation of undetectable payloads such as WinPa ...more

Backdooring a powered-off MacBook is easy when a few minutes of physical access is allowed. That attack works well if the hacker also shares a Wi-Fi network with the victim, but this time, I'll show how to remotely establish a connection to the backdoored MacBook as it moves b ...more

There has been significant debate over law enforcement's right to access our digital devices in recent years. New tools from Grayshift and Cellebrite are popping up faster than ever to help government agencies, as well as traditional hackers, break into iPhones. If you're conc ...more

During our last adventure into the realm of format string exploitation, we learned how we can manipulate format specifiers to rewrite a program's memory with an arbitrary value. While that's all well and good, arbitrary values are boring. We want to gain full control over the ...more

With so much money on the line, it's no surprise that cryptocurrency exchanges are prime targets for cybercriminals. Because of this, the importance of keeping your personal account as secure as possible cannot be overstated. Binance is one step ahead in this regard, as it req ...more

In our previous article, we learned how to take advantage of a feature, Dynamic Data Exchange (DDE), to run malicious code when an MS Word document is opened. Because Microsoft built DDE into all of its Office products as a way to transfer data one time or continuously between ...more

Hacking from a host machine without any form of proxying is reckless for a hacker, and in a penetration test, could lead to an important IP address becoming quickly blacklisted by the target. By routing all traffic over Tor and reducing the threat of malicious entrance and exi ...more

A man-in-the-middle attack places you between your target and the internet, pretending to be a Wi-Fi network while secretly inspecting every packet that flows through the connection. The WiFi-Pumpkin is a rogue AP framework to easily create these fake networks, all while forwa ...more