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How To: Enumerate SMB with Enum4linux & Smbclient

SMB (Server Message Block) is a protocol that allows resources on the same network to share files, browse the network, and print over the network. It was initially used on Windows, but Unix systems can use SMB through Samba. Today, we will be using a tool called Enum4linux to extract information from a target, as well as smbclient to connect to an SMB share and transfer files.

How To: Use the Cowrie SSH Honeypot to Catch Attackers on Your Network

The internet is constantly under siege by bots searching for vulnerabilities to attack and exploit. While conventional wisdom is to prevent these attacks, there are ways to deliberately lure hackers into a trap in order to spy on them, study their behavior, and capture samples of malware. In this tutorial, we'll be creating a Cowrie honeypot, an alluring target to attract and trap hackers.

The Sony Hack: Thoughts & Observations from a Real Hacker

By now, nearly everyone with any type of media access is aware that Sony Pictures Entertainment was hacked on November 24th. Although there can be many interpretations and lessons drawn from this audacious act, there is one indisputable conclusion: it and its ripples across the globe underlines how important hacking has become in our all-digital 21st century. As I have emphasized so many times in this column, hacking is the discipline of the future. From cybercrime to cyber intelligence to cy...

How To: Trick Websites into Thinking You're on a Different OS or Browser

There are a number of reasons why you might want to trick a web server into thinking you're on a different operating system (OS) or web browser. One might be that you want to test the mobile version of your website from your computer. Or perhaps for some reason a website is restricted to a certain OS or browser and you wish to circumnavigate that barrier. Today's guide shows you how to do just that!

How To: Find Passwords in Exposed Log Files with Google Dorks

You may not have thought of dorks as powerful, but with the right dorks, you can hack devices just by Googling the password to log in. Because Google is fantastic at indexing everything connected to the internet, it's possible to find files that are exposed accidentally and contain critical information for anyone to see.

How To: Use Command Injection to Pop a Reverse Shell on a Web Server

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 is not properly sanitized, commands not originally intended to be run are allowed to be executed.

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?"

How To: Find Out What Personal Data Your Mobile Apps Are Leaking with Mobilescope

If you use apps on your smartphone, chances are you have no idea what those apps are doing with your information. Just this year, there have been several scandals involving apps transmitting user data, like Path uploading users' entire address books onto its servers, HTC's Security Flaw, and Brewster exposing users' personal information (even Ashton Kutcher's). A new service called Mobilescope wants to make sure you always know where—and to whom—your data is going. Lots of apps copy your cont...

How To: Use HipHop for PHP to improve website performance

HipHop for PHP is a source code transformer that allows you to optimize your PHP code easily, which will allow you website to run faster on less server space. This video is a record of a seminar on using HipHop done by a Facebook employee who had a hand in it's development. If you make websites using PHP, this will be very good stuff for you to learn.

How To: Download and install Windows 7 language packs

This video shows you how to install language packs on Windows 7. It can be a bit tricky to figure out where to download these language packs, but this video does a great job explaining where to go. The invitation key needed to access the downloads section on Microsoft's site is Win7-3HQW-RF74. This also allows you to download Windows Server R2 2008 and Windows 7 Home Premium

How To: Play the basics in Evony

Learn everything you could possibly want to know about the internet, multiplayer game Evony with tutorials from EvonyTutorials. Watch this video tutorial to learn how to play the basics in Evony online. See exactly what the game Evony is!

How To: Set up a MySQL database for Moodle in WebMin

Interested in teaching an online course using your own server but can't quite figure out how to install everything you'll need? This video demonstrates how to setup a MySQL database for use with Moodle, the free, open source course management utility, which requires a MySQL database to run. For step-by-step instructions, take a look.

How To: Perform a Pass-the-Hash Attack & Get System Access on Windows

Passwords on Windows are stored as hashes, and sometimes they can be tough to crack. In certain situations, though, we can get around that by using the hash as is, with no need to know the plaintext password. It's especially interesting if we can manage to get the hash of an administrative user since we can then authenticate with higher privileges by performing an attack known as pass the hash.

How To: Exploit Java Remote Method Invocation to Get Root

In the world of technology, there's often a trade-off between convenience and security. The Java Remote Method Invocation is a system where that trade-off is all too real. The ability for a program written in Java to communicate with another program remotely can greatly extend the usability of an app, but it can also open up critical vulnerabilities that allow it to be compromised by an attacker.

How To: Exploit Shellshock on a Web Server Using Metasploit

One of the most critical bugs to come out in the last five years was Shellshock, a vulnerability which allows attackers to execute arbitrary code via the Unix Bash shell remotely. This vulnerability has been around for a while now, but due to the ubiquity of Unix machines connected to the web, Shellshock is still a very real threat, especially for unpatched systems.