Hack a Computer Using Command Prompt

While most of us don't think twice about dragging a pattern or using Touch ID to open our phones, or entering a password in for our email and bank accounts, these features are there to protect some of our most private information. Only problem is, they don't do a good job of i ...more

Welcome back, my hacker novitiates! Every so often, a MAJOR vulnerability appears that makes millions of systems vulnerable to attack. The most recent, named Shellshock, basically leaves every Mac OS X, Linux, and UNIX system on the planet vulnerable. As nearly two-thirds of ...more

What if the code you are trying to reverse engineer is obfuscated or somehow corrupted? What if no way is left? Here comes what I like to call (wrongly and ironically) the "brute force of reverse engineering". Before I even start, as always, I wanted to apologize for any uncl ...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

It used to be easy to hack tethering—root your device and install a third-party or modded tethering app. But snuck in amongst the changes in Android 4.3, a new data-monitoring service of sorts made its debut. There used to be a time when your data connection was yours. You pai ...more

The beauty of having a Google Play Edition HTC One is the ability to get as close to stock Android as possible while still getting some extra non-Google, proprietary HTC features. The newest version of Android, 4.4.3, has just hit the Nexus and Google Play Edition line of phon ...more

Welcome back, my greenhorn hackers! In my continuing effort to demonstrate to you how to hack the ubiquitous Windows 7, we will going after that notoriously vulnerable Adobe Flash that is on nearly every client Windows system (you are not likely to find it on servers). Flash ...more

Welcome back, my hacker apprentices! Several of you have written asking me how you can check on whether your boyfriend, girlfriend, or spouse is cheating on you, so I dedicate this tutorial to all of you with doubts about the fidelity of your spouse, girlfriend, or boyfriend. ...more

Welcome back, my tenderfoot hackers! So many readers in the Null Byte community have been asking me questions about evading detection and hacking undetected that I decided to start a new series on digital forensics. I applaud each of you for your concern, as the last thing I ...more

For over 20 years, a tiny but mighty tool has been used by hackers for a wide range of activities. Although well known in hacking circles, Netcat is virtually unknown outside. It's so simple, powerful, and useful that many people within the IT community refer to it as the "Swi ...more

It can be extremely frustrating when you've forgotten the pattern you use to lock your smartphone, and even more so if someone has managed to prank you by changing it. Luckily, there's an easy fix if you know the username and password for the Gmail account you used to set up t ...more

When I first received my HTC One M8, I was in love with the 5-inch screen size, but the icons and font just seemed too big, wasting valuable screen real estate. Phablets, like the Samsung Galaxy Note 4, have only slightly larger screens, but don't seem to have this problem sin ...more

While browsing the web on a computer, most of us are familiar with using Ctrl + F (or Command + F) to search for a specific word on a page — but what if you want to do that on mobile? If you're using Google Chrome, there's a simple way to search for specific words on iPhone or ...more

Of all the new features in Android 6.0 Marshmallow, an automatic battery-saving function called "Doze" might just be the most interesting. What it all boils down to is that if you set your phone down on a flat surface, the device uses internal sensors to detect that it's motio ...more

After years of user complaints, Samsung is finally letting us remap the Bixby button without the need of a third-party app. The new feature requires One UI a simple app update to Bixby, but there's one major downside: Samsung won't let you remap the button to open other digita ...more

Hello! This is my first post on this awesome website! I know that Windows exploits are less common than the more advanced hacks, but I found something I deem pretty cool and figured why not share it with you all. Alright, enough about me, lets begin. Warning: This resets your ...more

Malware often disguises itself inside of seemingly non-malicious files, such as installer packages, where it can then gain root access to your computer to track activity or steal your information. While your Mac does a good job of protecting you, thanks to built-in features l ...more

I spend a lot of time helping friends and family with their tech problems, like clearing a browser's cache, scanning a Windows computer for malware, and speeding up a Mac. However, the issue I deal with most frequently revolves around forgotten network passwords. Usually, the ...more

This is the first installment in a new series that I am calling "Hacker Hurdles." These are things, methods, techniques that make our job as hackers more challenging and difficult. Don't misunderstand me, these items don't make our task impossible, but rather more challenging ...more

Out of the box, Apple's digital assistant could be a godsend or a nuisance, depending on your daily interactions it. No matter which camp you fall into, Siri can always be better suited to your personal needs with a little customization. You can make Siri a powerhouse not to b ...more

OnePlus pulled out almost all the stops with their latest flagship, but there are a few areas where the phone falls just short of perfect. The single bottom-firing speaker leaves a lot to be desired, for instance, but thanks to the awesome development community for the OnePlus ...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

So, your grandmother finally wants to ditch her flip phone for a shiny new smartphone? Congratulations. But helping her get used to her new device, even when it's an iPhone, is no small task. Grandma mastered checking her email in late-2012 and just recently learned there's a ...more

Even though your phone has a built-in media player, it's got nothing on VLC. The popular third-party video player supports virtually every codec and file format, and even better, you can use it to stream movies, shows, and other video files from your computer to your phone. I ...more

Samsung's new personal assistant, Bixby, is making its debut on the Galaxy S8 and S8+. In addition to taking voice commands and performing visual searches, a new Hello Bixby feature predicts what you might want to do next with an integrated home screen feed. All of these featu ...more

The popular RPG Death Road to Canada has finally arrived for the iPhone and iPad, and its impact is immediate. It's fast becoming a top contender for mobile video game of 2017, and it's very easy to see why. The game blends decision making and good old zombie bashing to create ...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

With the holidays over, a lot of people with shiny new Google Homes are getting their first chance to explore the new Google Assistant. Before the Google Home's release, the Assistant was only available for the Google Pixel and Pixel XL, or in a text-based form with Google All ...more

Google Assistant just got a lot more powerful thanks to IFTTT. The automation platform, whose name stands for If This, Then That, connects your favorite online services and smart devices to one another, allowing for a seamless experience with many different gadgets—and Google ...more

When was the last time you restarted or shutdown your Mac? In the post-iPhone era, most devices are now powered on almost constantly. For better or for worse, the computing landscape has accommodated this "always on" trend, but you still need to periodically restart your devic ...more

Welcome back, my hacker novitiates! In the previous part of this series, we looked at how to use Metasploit's web delivery exploit to create a script to connect to a UNIX, Linux, or OS X machine using Python. Many members of the Null Byte community have asked me, "Can we do t ...more

There's no iMessage app on Android, so unlike the folks who own both an iPhone and a Mac, we have to rely on third-party solutions to send and receive SMS messages from our computers. But on the bright side, this means we don't have to buy an exorbitantly expensive desktop or ...more

Hello fellows nullbyters, first of i will start saying that im addicted to this community, i feel the challenge growing up so fast, all the newbies, amateurs,advanced and professionals hackers around trying their best to help the community, badly but we got some script-kids to ...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

Do you remember the last time we used BeEF? Well, now we get to use it again, but this time with MITMf! We are going to auto-inject the hooking script into every webpage the victim visits! Requirements If you don't already have it, install MITMf via apt-get install mitmf. Yo ...more

Hi, my name is Alan, and I am not a script kiddy brat from Xbox Live asking you how to boot someone offline for being mean to me. I am an amateur white hat hacker hoping to learn and teach and this is my first tutorial. THC Hydra is very prominent online brute-force tool and ...more

There are several reasons that you might want to restore the factory firmware on your device—maybe you need to send your phone back for warranty purposes, or perhaps you're getting ready to accept an over-the-air update and need to unroot first. In some cases, reverting to the ...more

As a Mac and Sasmsung Galaxy S6 user, I quickly realized that the two devices don't play well with one another out of the box, and using ADB commands to record my Android's screen isn't as simple as it is would be with a Windows PC. Though you might feel like attempting to us ...more

Welcome back, my tenderfoot hackers! Hacker newbies have an inordinate fixation on password cracking. They believe that cracking the password is the only way to gain access to the target account and its privileges. If what we really want is access to a system or other resourc ...more

I don't know of a pain greater than of the one felt after cracking the screen of your phone. After I managed to crack my screen, rendered unusable, I immediately began to panic as to how I was going to recover all of the photos, videos, and documents stored on my device. After ...more

If you thought iOS 7 was a drastic change from previous iterations, iOS 8 will certainly continue to rock the boat. From a revamped Control Center to enhanced "Continuity" to ephemeral messaging, Apple's newest mobile operating system will have many of you relearning the "basi ...more

Welcome to this short and easy tutorial on hacking and DDosing (is that even a word I don't know) anyways lets get started First of all DDos means distributed denail of service attack, and yes i don't know what the HELL it means either. but anyway DDosing is where you spam a ...more

I used to have nightmares when I watched Terminator 2. I mean, I didn't step on a playground for a least two months after I saw that movie. There was something terrifying about computers having so much intelligence. Video: . But that was then and this is now. Terminator was wa ...more

This is the second installment of the short series on how to remove user passwords in Windows. Once again this has only been tested on Windows 7. If I can find some time between two jobs and school I'll test all the ways on Windows 10 and Windows 8/8.1. Step 1: Startup Repair ...more

Welcome back, my greenhorn hackers! In many cases when a computer, phone, or mobile device is seized for evidence, the system will have graphic images that might be used as evidence. Obviously, in some cases these graphic images may be the evidence such as in child pornograph ...more

An attacker can create three, five, or even ten new Netcat connections to a compromised MacBook with one command. Performing complex post-exploitation attacks might otherwise be difficult from a single shell without this essential trick. Why Create Multiple Netcat Threads? W ...more

When you get a new phone, the last thing you want to deal with is a ton of preinstalled programs staring back at you. They not only clutter your home screen with apps you'll probably never use, but they're also wasting space on your internal storage and potentially draining ba ...more

In a previous guide, I demonstrated how to extract images from a security camera over Wi-Fi using Wireshark, provided you know the password. If you don't know the password, you can always get physical with the Hak5 Plunder Bug. Using this small LAN tap, we can intercept traffi ...more

With just a few taps, an Android phone can be weaponized into a covert hacking device capable of running tools such as Nmap, Nikto, and Netcat — all without rooting the device. UserLAnd, created by UserLAnd Technologies, is a completely free Android app that makes installing ...more

Things that are supposed to make life easier for developers and users are often easy targets for exploitation by hackers. Like many situations in the tech world, there is usually a trade-off between convenience and security. One such trade-off is found in a system known as Dis ...more

When flashing files through TWRP, ADB, or Fastboot, there's a slight chance for things to go wrong. Whether it's user error related or something else entirely, it's always good to have a backup plan. In most cases, you'll be dealing with a semi-brick or soft-brick, which can u ...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

Sorry Samsung. I know you really wanted Bixby to be the next Siri, Google Assistant, or Alexa — but it just isn't. Burying the option to disable the app won't change that. Sure, Bixby has some redeeming qualities, but there are many of us who don't want it shoved down our thro ...more

It's no secret that Android has a messaging problem. iPhone users can turn to iMessage as a one-stop shop for all their messaging needs — features like read receipts and the ability to text from a computer have been standard with Apple products for quite some time. Android has ...more

Because it sources a majority of its vital data from actual drivers on the road, Waze is easily one of the best navigation apps to use if you prioritize safety. Benefits such as crowd-sourced traffic data, police trap locations, and road work avoidance, when combined, help you ...more

While the Twitch app for iOS came out way back in 2011, livestreaming iPhone games was a rarity until Apple recently updated its ReplayKit in iOS 11. However, Twitch hasn't jumped on the bandwagon yet, but that doesn't mean you can't livestream your iPhone games to Twitch righ ...more

As smartphone users, we live in dangerous times. The value of phones continues to rise, making them prime targets for thieves. In 2015, the FCC estimated that one million phones are stolen each year, and with several devices starting to hit the $1,000 mark now, these numbers a ...more

If you need to scan a large number of domains for a specific web app vulnerability, Dorkbot may be the tool for you. Dorkbot uses search engines to locate dorks and then scan potentially vulnerable apps with a scanner module. This tool is useful if you're managing a large num ...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

With the iPhone 8, 8 Plus, and the exclusive iPhone X, Apple has come full circle in transitioning its users away from the home button present since the first iPhone a decade ago. This gives us a window into Apple's design philosophy moving forward, but it also presents some n ...more