Hot Null Byte How-Tos

IRC Guide: Making a Bot

Hello fellow Nullbytiens, I'm Washu, a long time commenter but first time poster. Today we'll be making an IRC bot, if you haven't seen OTW's post about the new IRC channel I would encourage you to go check it out. He does a good job at explaining what IRC is and how to get set up.

How to Meterpreter: Obtaining User Credentials with PowerShell

In this article I will show you how to obtain victim's credentials without cracking any hashes. There are a couple of ways to perform this task (for example dumping the SAM file and cracking the NTLM hashes), but here I will explain how to do it using PowerShell and a bit of social engineering. We are going to create a fake login popup.

How To: Linux Basics for the Aspiring Hacker: Managing Hard Drives

Managing hard drives in Linux is crucial to understanding your system and its operation as well as understanding the system you are exploiting or conducting a forensic analysis on. Linux has numerous commands that can provide us with information, control, and management of hard drives, and in this tutorial, we will examine a number of the most important ones.

How To: Use Magic Tree to Organize Your Projects

MagicTree is often the go-to tool for data collection and reporting for many pentesters. It organizes data in nodes in a tree-structure which is very efficient at managing host and network data. Reports can be completely customized to meet the user's needs. Also, MagicTree allows you to import XML data and has XSLT transforms for Nessus, Nmap, OpenVas, Burp, Nikto. MagicTree comes pre-installed in Kali.

How To: Attack on Stack [Part 1]; Smash the Stack Visualization: Introduction to Memory, Registers and Assembly.

Hi everyone. Recently I've been studying some topics about Assembly, memory and exploitation, and thought I could write something nice, easy and fast about it, just because I like to share what I learn, and probably sharing what you learn and trying to explain it to a stranger is the best way to learn it better. It worked for me, and I hope it will be useful for you too.

How To: Use Social Engineering to Hack Computers

Today I am going to teach the various ways that you can use social engineering to hack a system. For those of you that have followed my past tutorials, you know that social engineering can unlock a world of possibilities. This is because no matter how many firewalls, no matter how many patches there are on a server, the password is kept in the minds of people...and people, are not as smart as computers.

Hack Like a Pro: How to Create a Nearly Undetectable Covert Channel with Tunnelshell

Welcome back, my rookie hackers! Most often, the professional hacker is seeking protected information from the target system or network. This might be credit card numbers, personally identifiable information, or intellectual property (formulas, plans, blueprints, designs, etc.). Most of my Null Byte guides have been focused on getting into the system, but this only begs the question—"what do I do when I get there?"

Hack Like a Pro: The Hacker Methodology

Welcome back, my neophyte hackers! Many newbie hackers seem to be confused regarding the process or methodology to employ a successful hack. Most want to simply go straight to the exploit without doing the due diligence to make certain that the hack will work and you won't get caught.

Hack Like a Pro: Digital Forensics for the Aspiring Hacker, Part 3 (Recovering Deleted Files)

Welcome back, my tenderfoot hackers! I recently began a new series on digital forensics to help tenderfoot hackers from being detected and ultimately, incarcerated. In this installment of that series, we will look at recovering deleted files. This is important to hackers because you need to know that even when you delete files on your computer or on the victim's computer, a forensic investigator can usually recover them.

How To: Seize Control of a Router with RouterSploit

A router is the core of anyone's internet experience, but most people don't spend much time setting up this critical piece of hardware. Old firmware, default passwords, and other configuration issues continue to haunt many organizations. Exploiting the poor, neglected computer inside these routers has become so popular and easy that automated tools have been created to make the process a breeze.

How To: Change a Phone's Coordinates by Spoofing Wi-Fi Geolocation Hotspots

In many urban areas, GPS doesn't work well. Buildings reflect GPS signals on themselves to create a confusing mess for phones to sort out. As a result, most modern devices determine their location using a blend of techniques, including nearby Wi-Fi networks. By using SkyLift to create fake networks known to be in other areas, we can manipulate where a device thinks it is with an ESP8266 microcontroller.

How To: Use the Koadic Command & Control Remote Access Toolkit for Windows Post-Exploitation

Koadic allows hackers to monitor and control exploited Windows systems remotely. The tool facilitates remote access to Windows devices via the Windows Script Host, working with practically every version of Windows. Koadic is capable of sitting entirely in memory to evade detection and is able to cryptographically secure its own web command-and-control communications.

How To: Catch an Internet Catfish with Grabify Tracking Links

Featured on MTV's Catfish TV series, in season 7, episode 8, Grabify is a tracking link generator that makes it easy to catch an online catfish in a lie. With the ability to identify the IP address, location, make, and model of any device that opens on a cleverly disguised tracking link, Grabify can even identify information leaked from behind a VPN.

How To: Use Pupy, a Linux Remote Access Tool

In one of my previous articles, I discussed ShinoBot, a remote administration tool that makes itself obvious. The goal is to see if the user could detect a remote administration tool or RAT on their system. In this article, I'll be demonstrating the use of Pupy, an actual RAT, on a target Ubuntu 16.04 server.

How To: Write Your Own Subdomain Enumeration Script for Better Recon

There are tons of tools out there that do all kinds of recon, but it can be hard to narrow down what to use. A great way to be more efficient is by taking advantage of scripting. This doesn't have to mean writing everything from scratch — it can simply mean integrating existing tools into a single, comprehensive script. Luckily, it's easy to create your own subdomain enumeration script for better recon.

How to Hack Wi-Fi: Hunting Down & Cracking WEP Networks

While the security behind WEP networks was broken in 2005, modern tools have made cracking them incredibly simple. In densely populated areas, WEP networks can be found in surprising and important places to this day, and they can be cracked in a matter of minutes. We'll show you how a hacker would do so and explain why they should be careful to avoid hacking into a honeypot.

How To: Use Maltego to Target Company Email Addresses That May Be Vulnerable from Third-Party Breaches

The easiest way around a security policy is to find users who don't follow it. The Have I Been Pwned database identifies accounts with information breached by major third parties like Yahoo and LinkedIn. With Maltego, hackers can locate breached accounts created using company email addresses, potentially giving attackers access to a company account if the employee reuses a compromised password.

Hack Like a Pro: How to Crack Passwords, Part 3 (Using Hashcat)

Welcome back, my greenhorn hackers! Continuing with my series on how to crack passwords, I now want to introduce you to one of the newest and best designed password crackers out there—hashcat. The beauty of hashcat is in its design, which focuses on speed and versatility. It enables us to crack multiple types of hashes, in multiple ways, very fast.