Hack Like a Pro Linux Basics 2

Signal is one of the best end-to-end encrypted messengers on the market. It offers robust security, keeps minimal information about its users, and is free to use. Switching to it as your main messenger can be a bit daunting, so to help, we created a guide to walk you through t ...more

Stories are everywhere in social media today, but that wasn't always the case. In 2013, Snapchat introduced the world to these temporary windows into our daily lives. Since then, stories have infiltrated other popular apps. However, to stand out, you can't solely rely on the a ...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

Single sign-on (SSO) lets users login across different sites without having to manage multiple accounts. I'm sure most of us appreciate the convenience of seeing "Sign in with …" buttons that let us login with a single username. Hackers, however, see a possible avenue for expl ...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

Identifying vulnerable devices and services on a target router can be difficult without leaving logs and other traces of an active attacker on the network. However, there is a way to covertly decrypt and view Wi-Fi activity without ever connecting to the wireless network. Whe ...more

File inclusion can allow an attacker to view files on a remote host they shouldn't be able to see, and it can even allow the attacker to run code on a target. To demonstrate these vulnerabilities, we'll be practicing PHP file inclusion using the Damn Vulnerable Web App. We'll ...more

Bluetooth Low Energy (BLE) is the de facto wireless protocol choice by many wearables developers, and much of the emerging internet of things (IoT) market. Thanks to it's near ubiquity in modern smartphones, tablets, and computers, BLE represents a large and frequently insecur ...more

In my previous article, we learned how to generate a vulnerable virtual machine using SecGen to safely and legally practice hacking. In this tutorial, we will put it all together, and learn how to actually hack our practice VM. This will provide some insight into the methodolo ...more

RouterSploit is a powerful exploit framework similar to Metasploit, working to quickly identify and exploit common vulnerabilities in routers. And guess what. It can be run on most Android devices. I initially covered RouterSploit on Kali Linux and macOS (OS X), but this tuto ...more

On April 7, 2017, residents in Dallas, Texas, woke to the sound of emergency sirens blaring all over the city. No one could shut them off, and after repeated efforts to contain the situation, the city had to shut down the entire system. While the media reported a sophisticated ...more

Welcome back my, tenderfoot hackers! Many people come to Null Byte looking to hack Facebook without the requisite skills to do so. Facebook is far from unhackable, but to do so, you will need some skills, and skill development is what Null Byte is all about. Sometimes, if yo ...more

As most of you know, I am a strong advocate for using Linux for hacking. In fact, I would go so far as to say that you cannot be a hacker without knowing Linux well. I laid out various reasons for this in my "Why Every Hacker Should Know & Use Linux" article, and I even have a ...more

Welcome back, my budding hackers! In this series, I have been trying to familiarize you with the many features of the world's best framework for exploitation, hacking, and pentesting, Metasploit. There are so many features, and techniques for using those features, that few pe ...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

Greetings fellow hackers. This tutorial is about creating "safe" passwords. This is different from strong passwords. Safe passwords is just creating a password that is not used by someone else or colleague, my definition. But how do you prevent something like this from happeni ...more

Many of our members here at Null Byte are aspiring hackers looking to gain skills and credentials to enter the most-valued profession of the 21st century. Hackers are being hired by IT security firms, antivirus developers, national military and espionage organizations, private ...more

Welcome back, my novice hackers! More and more, the world is turning to and adopting the smartphone platform as the digital device of choice. People are not only using smartphones for voice communication, but also web services, email, SMS, chatting, social networking, photogr ...more

Welcome back, my novice hackers! One of the most common questions that Null Byte readers ask is: "How can I evade detection by antivirus software on the target?" I have already talked about how AV software works, but to obtain a deeper understanding, what better way is there ...more

Greetings dear null byters, today we start a new series, we will start to attack users using social networking that are popular such as Facebook, Skype, and much more, and in part 1 of the series will engage users of Skype. What we are going to do today? 1 - get the IP from h ...more

Welcome back, my tenderfoot hackers! Recently, Microsoft released a new patch (September 8, 2015) to close another vulnerability in their Windows Vista, 7, 8, and 8.1 operating systems. The vulnerability in question (MS15-100) enabled an attacker to gain remote access to any ...more

Welcome back, rookie hackers! We recently began an exploration of ways to hack using the Bluetooth protocol. As you know, Bluetooth is a protocol that connects near field devices such as headsets, speakers, and keyboards. Its minimum range is a 10-meter radius (~33 feet) and ...more

Welcome back, my novice hackers! This new series on Bluetooth hacking was inspired by a recent episode of Mr. Robot (my favorite TV show). In episode 6, Eliot hacked the bluetooth keyboard of the police office in order to hack the prison and release his nemesis, Vera. This is ...more

Welcome back, my amateur hackers! As many of you know, Null Byte will soon be re-establishing its IRC channel. In preparation of that event, I want to show how to set up a secure IRC client with OTR, or Off the Record. OTR does all the right things to make your instant messa ...more

Greetings My Fellow Aspiring Hackers, Its been long since I last posted a tutorial. Its vacation and since I won't be coming home, I've decided to use my day for sharing. I was browsing through old posts and found OTW's article - Hack Like A Pro: How to Find the Exact Locatio ...more

Welcome back, my fledgling hackers! Let's continue to expand our knowledge of digital forensics, to provide you the skills necessary to be a digital forensic analyst or investigator, as well make you a better hacker overall. In your attempts to enter a system or network undet ...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

Hi guys. I'm here to go for level 7 now lets get it start but i apologize u all that i posted this very late but now lets rock: Level 7 this level says: This time Network Security sam has saved the unencrypted level7 password in an obscurely named file saved in this very di ...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 neophyte hackers! In previous tutorials, we learned how to steal system tokens that we could use to access resources, how to use hashdump to pull password hashes from a local system, and how to grab password hashes from a local system and crack them. In each ...more

Welcome back, my budding hackers! With this article, I am initiating a new series that so many of you have been asking for: Hacking Web Applications. In previous tutorials, we have touched on some of the techniques and tools for web app hacking. We looked at web app vulnerab ...more

What Is IPython? IPython is a richly featured replacement for the standard python interpreter. It offers a wider range of functionality, that the standard interpreter, which generally ships with python, sorely lacks. It's a great tool for learning Python faster than you would ...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

Welcome back, my rookie hackers! "How can I travel and communicate over the Internet without being tracked or spied on by anyone?" It's a question many Null Byteans have asked me, so I have decided to write a comprehensive article addressing this issue. There are a multitude ...more

Welcome back, my hacker novitiates! In an earlier tutorial, I had introduced you to two essential tools for cracking online passwords—Tamper Data and THC-Hydra. In that guide, I promised to follow up with another tutorial on how to use THC-Hydra against web forms, so here we ...more

Welcome back, my budding hackers! This is the initial post of a new series on how to hack Facebook. It's important to note here that each hack I'll be covering is very specific. I have said it before, but I feel I need to repeat it again: there is NO SILVER BULLET that works ...more

Welcome back, my nascent hackers! One of the many reasons I write this blog is to help you keep the Internet free and open. Throughout human history, whenever a government or other powerful entity has wanted to subjugate a people or group, the first thing they do is isolate t ...more

Welcome back, my hacker novitiates! Eluding and evading antivirus software and intrusion detection systems is one of the most critical tasks of the hacker. As soon as a new exploit is developed and discovered, the AV and IDS developers build a signature for the attack, which ...more

Welcome back, my fledgling hackers! With this first article, I am initiating a new series intended to convey to my readers the skills necessary to develop your own exploits. As many of you know, soon after an exploit is found in the wild, software developers begin to work on ...more

Welcome back, my fledgling hackers! Sometimes, for a variety of reasons, we can only get a command shell on our target system. For instance, with Metasploit, it's not always possible to get the all powerful Meterpreter on our target system. In other cases, we may be able to c ...more

Welcome back, my novice hackers! New hackers often ask me the same question: "What is the easiest platform to hack?" My response is always the same—it is not a platform, but rather a particular piece of software that is easiest to hack, which is on nearly every client-side sy ...more

Welcome back, my budding hackers! One of the keys to being successful as a hacker, pentester, or cyber warrior is the ability to find vulnerabilities or flaws in the target system, which are what we exploit when we hack. We have looked at several ways to do that including var ...more

Welcome back, my novice hackers! Before we try to attack a website, it's worthwhile understanding the structure, directories, and files that the website uses. In this way, we can begin to map an attack strategy that will be most effective. In addition, by knowing what files ...more

Welcome back, my tenderfoot hackers! As you know, DNS, or Domain Name System, is critical to the operation of the Internet. It provides us with the ability to type in domain names such as www.wonderhowto.com rather than the IP address. This simple service saves us from having ...more

Welcome back, my amateur hackers! Many of you here are new to hacking. If so, I strongly recommend that each of you set up a "laboratory" to practice your hacks. Just like any discipline, you need to practice, practice, and practice some more before you take it out to the rea ...more

If you've ever owned an HTC device or anything in the Nexus line, odds are, you have typed the word "fastboot" into your command line at one time or another. That said, odds are, you have only just barely scratched the surface of what this handy little Android tool can do. Let ...more

Welcome back, my rookie hackers! Now that nearly everyone and everyplace has a computer, you can use those remote computers for some good old "cloak and dagger" spying. No longer is spying something that only the CIA, NSA, KGB, and other intelligence agencies can do—you can l ...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 apprentices! Last week, I started off my password cracking series with an introduction on the principles and technologies involved in the art of cracking passwords. In past guides, I showed some specific tools and techniques for cracking Windows, onlin ...more

Welcome back, my greenhorn hackers! Lately, much of the discussion here on Null Byte has revolved around evading detection and not getting caught hacking. Several of you have written me asking for a series on evading detection and forensics, and while I began a series 5 month ...more

Welcome back, my hacker noviates! In a recent post, I introduced you to Shodan, the world's most dangerous search engine. Shodan crawls the globe from IP to IP address, attempting to pull the banners of each web-enabled device and server it finds. These banners are what the ...more

Welcome back, my novice hackers! The worst thing that can happen to any hacker is being detected by a security admin, the security technologies (IDS, firewall, etc.), or a forensic investigator. Every time we send a packet to our intended target, that packet contains our IP ...more

Welcome back, my budding hackers! We've spent a lot of time learning to compromise Windows systems, and we've successfully compromised them with Metasploit, cracked their passwords, and hacked their Wi-Fi. However, very little time was spent developing ways to extract the inf ...more

Welcome back, my tenderfoot hackers! We have looked at a number of ways that we sniff traffic on the network with such tools as Wireshark, tcpdump, dnsiff, and others, but each of these tools is only capable of pulling packets off the wire. Those packets can be examined for ...more

This time it's serious. Really. The largest web security vulnerability of all time went public on Monday, April 7th, 2014, resulting in widespread panic throughout the Internet as system administrators scrambled to secure their websites from the OpenSSL bug known as Heartblee ...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

Welcome back, my aspiring hackers! Those of you who've been reading my tutorials for some time now know that I am adamant regarding the necessity of learning and using Linux to hack. There is no substitute, period. In this tutorial, though, we will be setting up a system to ...more

Welcome back, my fledgling hackers! A short while ago, I did a tutorial on conducting passive OS fingerprinting with p0f. As you remember, p0f is different from other operating system fingerprinting tools as it does not send any packets to the target, instead it simply takes ...more

Welcome back, my novice hackers! There are SOOOO many ways to hack a system or network, which means you need to think creatively in order to be successful. Many novice hackers focus way too much energy on cracking passwords (which should be a last resort unless you have spec ...more

Welcome back, my novice hackers! I have tried to emphasize throughout this "Hack Like a Pro" series that good reconnaissance is critical to effective hacking. As you have seen in many of these hacks, the techniques that we use are VERY specific to the: Operating system, Serv ...more