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How To: Use the Chrome Browser Secure Shell App to SSH into Remote Devices

Many guides on Null Byte require using the Secure Shell (SSH) to connect to a remote server. Unfortunately for beginners, learning to use SSH can become a confusing mix of third-party programs and native OS support. For Chrome OS users, using SSH is even more difficult. We'll fix this by using the Chrome Secure Shell to establish an SSH connection from any device that can run a Chrome browser.

How To: Create an Evil Access Point with MitmAP

The threat of an evil access point has been around for a long time, and with the rise of open public Wi-Fi, that threat is often overshadowed by how comfortable we are using third-party Wi-Fi hotspots at coffee shops and public spaces. While we've shown an evil twin attack using the Aircrack-ng suite of tools, MitmAP is a Python tool to configure custom APs for many types of wireless attacks.

How To: Use the USB Rubber Ducky to Disable Antivirus Software & Install Ransomware

Ransomware is software that encrypts a victim's entire hard drive, blocking access to their files unless they pay a ransom to the attacker to get the decryption key. In this tutorial, you'll learn how easy it is to use the USB Rubber Ducky, which is disguised as an ordinary flash drive, to deploy ransomware on a victim's computer within seconds. With an attack that only takes a moment, you'll need to know how to defend yourself.

How To: Protect Yourself from the KRACK Attacks WPA2 Wi-Fi Vulnerability

In October of 2017, Mathy Vanhoef released "Key Reinstallation Attacks: Forcing Nonce Reuse in WPA2." This paper demonstrates a way to decrypt traffic on practically any WPA2 network, the most commonly used form of wireless security (seeing as all other forms of Wi-Fi encryption have already been broken). Practically all of the network-connected devices we use will need to be updated in some way in order to protect against this vulnerability, each of them in a different way.

How To: Use Private Encrypted Messaging Over Tor

Tor is an excellent obfuscation network for web traffic, and while instant messaging over the network is very useful, it can be relatively difficult to configure. In this guide, we'll look at two synchronous communications platforms (instant messengers) which can be routed over the Tor network, Ricochet and XMPP.

How to Hack Wi-Fi: Capturing WPA Passwords by Targeting Users with a Fluxion Attack

With tools such as Reaver becoming less viable options for pen-testers as ISPs replace vulnerable routers, there become fewer certainties about which tools will work against a particular target. If you don't have time to crack the WPA password or it's unusually strong, it can be hard to figure out your next step. Luckily, nearly all systems have one common vulnerability you can count on — users!

Android Basics: How to Root with CF Auto Root

The sheer variety of Android devices on the market is staggering—one report suggests there are well over 24,000 distinct phones and tablets floating around out there. When you consider that each manufacturer adds a few tweaks to the Android code base here and there, that makes for a lot of software variations, which in turn means there needs to be many different root methods to match this variety.

News: What to Expect from Null Byte in 2015

Welcome back, my greenhorn hackers, and happy New Year! Now that your heads have recovered from your New Year's Eve regaling, I'd like to grab your attention for just a moment to preview 2015 here at Null Byte. I hope you will add your comments as to what you would like to see, and I'll try to honor as many requests as I can.

How To: Every Mac Is Vulnerable to the Shellshock Bash Exploit: Here's How to Patch OS X

Heartbleed, move over. There's a new bug in town, and this time it's also affecting Mac and Linux computers. It's called Shellshock (its original official title is CVE-2014-6271), and it's currently got a 10 out of 10 severity rating over at the National Cyber Awareness System. While some updates have been issued to fix this bug, they were incomplete, and your system is probably still vulnerable, as it has been for the last probably 20 years.

How To: Unjailbreak Your iPhone & Restore It Back to Factory Settings

Jailbreaking gives you root access to the iOS file system, allowing you to install third-party apps and tweaks on your iPhone that aren't available in the App Store. It opens up a whole new realm for what your device can do, but it can also cause instability across the system and can dissuade you from getting future updates from Apple that have important features, bug fixes, and security enhancements.

How To: Set Your Wi-Fi Card's TX Power Higher Than 30 dBm

Do you have an Alfa AWUS036NH Wi-Fi adapter that claims it can go to 2000 mWs, or some card that can supposedly transmit power over 1000 mW? If so, you may have run into problems setting your card's TXPOWER higher than 30 dBm, which is about 1000 mW. Well, I will show you how to break that barrier and go as high as you want!

How To: 5 Annoying Things About iOS 5 (Plus How to Fix Them)

I admit, when the new iOS 5 update for Apple devices was coming out, I had iTunes open all morning with my iPhone 4 attached... waiting... waiting... waiting until finally the new version of iOS was available for download. I stopped everything I was doing and quickly initiated the process of updating my device. After two excruciating hours, my iPhone 4 was finally ready to go and I couldn't be anymore happy. Who needs an iPhone 4S when you've already got iOS 5?

How To: Recognize alcohol and drug addiction

In this online video you'll get tips for recognizing signs of drug & alcohol addiction from a former addict. John DePalma explains how drugs can affect the brain and the long-term affects of addiction on the body. He explains the symptoms of several types of drug use, from alcohol and marijuana, to harder drugs like cocaine, crystal meth and heroin, and warns of the dangers of abusing prescription drugs like pain killers and anti-anxiety drugs as well. He then explains how to approach an addi...

How To: Apple Finally Lets You Set Early Notifications for Reminders to Get Custom Alerts Before Tasks Are Due

The Reminders app is a simple yet powerful task manager, and it does a great job of reminding you to start an errand, alerting you to a project that's supposed to be done, or prompting you about a recurring chore. But with the latest Reminders update, the dates and times you set for tasks can act more like due dates thanks to the new early reminders feature.

How To: Make Google's Messages App on Your Phone Write or Rewrite Text Messages for You Using GenAI

Text messaging is a core component of the mobile experience, and Google has added several AI-fueled features to help you text better, such as Smart Reply for quick response suggestions. But Messages by Google's newest AI-powered tool is possibly the best one yet, giving you improved response suggestions and your own personal copyeditor to fix all your message drafts.

How To: 3 Reasons Why You Need iOS 14.5's New Privacy Features on Your iPhone

Many of us choose to use an iPhone — as well as other devices in the Apple ecosystem — because of the company's dedication to user privacy and security. If you need more proof of that commitment, look no further than iOS 14.5, released April 26, which adds new tools to protect our data while browsing the web and more control over the data installed apps collect on us.

How To: Find & Remove Files from Deleted Apps on Your iPhone to Free Up More Storage

Since iOS 11, your iPhone has been capable of offloading hardly used apps to free up storage space for more useful data. But offloading only gets rid of the app's binary, meaning its documents and data are stored on your device in case you reinstall the app. That can take up a lot of space itself, so it's good to periodically review files for offloaded apps and purge the content you no longer need.