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How To: Detect & Classify Wi-Fi Jamming Packets with the NodeMCU

The most common Wi-Fi jamming attacks leverage deauthentication and disassociation packets to attack networks. This allows a low-cost ESP8266-based device programmed in Arduino to detect and classify Wi-Fi denial-of-service attacks by lighting a different color LED for each type of packet. The pattern of these colors can also allow us to fingerprint the tool being used to attack the network.

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: Crack Shadow Hashes After Getting Root on a Linux System

After gaining access to a root account, the next order of business is using that power to do something more significant. If the user passwords on the system can be obtained and cracked, an attacker can use them to pivot to other machines if the login is the same across systems. There are two tried-and-true password cracking tools that can accomplish this: John the Ripper and Hashcat.

How To: Securely Sync Files Between Two Machines Using Syncthing

Transferring hundreds of screenshots, webcam recordings, keystroke logs, and audio recordings between your VPS and a local Kali machine can be tricky. Services like Dropbox don't always have the best privacy policies and suffer data breaches just like any other website. To mitigate these risks, we'll use a secure, open source, and decentralized alternative.

How To: Execute Code in a Microsoft Word Document Without Security Warnings

Code execution in Microsoft Word is easier than ever, thanks to recent research done by Etienne Stalmans and Saif El-Sherei. Executing code in MS Word can be complicated, in some cases requiring the use of Macros or memory corruption. Fortunately, Microsoft has a built in a feature that we can abuse to have the same effect. The best part, it does so without raising any User Account Control security warnings. Let's look at how it's done.

How to Java: E4 (Methods)

Welcome back to another episode of Java Tutorials, In today's tutorial, we'll be learning about what methods are, proper syntax when writing Methods, and why they are beneficial in a program's code.

Basics of Ruby: Part Two (Loops)

In the last Ruby article, we talked about how to store information in three different kinds of storages: variable, array, and a hash. After we get the data, we have many ways of using them, but, for right now,

How To: Writing 64-Bit Shellcode - Part 2 (Removing Null-Bytes)

Welcome to the sequel to the latest post on writing 64 bit shellcode! This tutorial will assume that you are aware of everything mentioned in the last one, as I will try to make this tutorial void of formalities and straight to the point! If you have not read the last one, I suggest doing so unless you are familiar with basic assembly programming and system calls. This is by no means rocket science, so therefore I will simply repeat my TL;DR from last time before we get started, so that the a...

How To: Make an Excel 2010 File Appear as a Program with Vba

When programming an Excel-file with links between sheets and assorted macros for whatever is needed you may want the file to behave as a program so that users can not access the ribbon even by double-clicking on the top bar. Protect the code from being accessed by pressing alt-F8 or alt-F11. Make sure you can run the macro show_sheets_and_ribbon () from the opening sheet before continuing to step 3

How To: Help NASA Write Code to Fix the International Space Station and You Could Win $10,000!

The International Space Station is a habitable man-made satellite currently in orbit around the Earth. Launched in 1998, the ISS is used mainly as a microgravity and space environment research laboratory where astronauts perform experiments in large variety of fields, including biology and physics. In order to be hospitable for crew members and scientists, the ISS needs energy. To do this, the station uses its solar panels to capture rays of sun and power the station up. In order to garner th...

How To: Breeze Through Black Friday with These Helpful Deal-Finding Apps and Websites

Every year, Black Friday gets a little more insane. People get up at ungodly hours, wait in lines forever, and get into some of the most ridiculous fights you've ever seen. All in the name of saving some cash. Everyone loves saving money, but without a game plan, you could end up missing all the good deals and going home with nothing. Luckily, the Internet is here to take some of the stress out of holiday shopping. With these sites and apps, you can find out about all the best deals before yo...

How To: Activate Bluetooth settings on an Android cell phone

If you just purchased an Android enable mobile device with Bluetooth, then one of the main objectives you'll have on your to-do list is to set it up in your vehicle for hands-free dialing and phone calls. Activating Bluetooth inside your car is easy, and all you need to remember is a little number called zero. Actually, you need to remember it 4 times — Best Buy has answers. The Best Buy Mobile team explains how simple it is to activate Bluetooth settings on an Android cell phone.

Walkthrough Assassin's Creed 2: Glyph Puzzle 12

This is the 12th puzzle, entitled "Titans of Industry", in Assassin's Creed 2. Code wheel puzzle 1: The key here is in the “4=1” on the blueprint at the left of the screen. Line up the red 4 over the gray 1 and input the following code: 917240. Image 1: This one’s the opposite of the light-bulb “puzzle” from before – just move the dollar sign over the bulbs to extinguish them. Image 2: Highlight the glowing ball at the center of the image. Code wheel puzzle 2: Your hints here are the “2” on t...

How To: Reuse code by creating classes when programming in Python 3

Need a class on how to use classes in Python? You're in luck. Whether you're new to the Python Software Foundation's popular general purpose programming language or a seasoned developer looking to better acquaint yourself with the new features and functions of Python 3.0, you're sure to benefit from this free video programming lesson. For more information, including detailed, step-by-step instructions, watch this video guide.

How To: Make an if decision for Java programming

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this free discusses how to use if statements Java programming language. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Create update and restore screen methods in Java

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to create and update restore screen methods when programming in Java. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Create an array of display modes when Java programming

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to build a list of display modes. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Get mouse input from users for Java game development

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to use accept mouse input from a user in a Java applet. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Create a class to hold objects when Java programming

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to create a class to store objects when programming in Java. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Build a simple compound interest program in Java

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBostonian will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to write a simple application to calculate compound interest. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Build a custom time class for Java programming

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBostonian will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to build a custom time class in the Java programming language. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Use the toString method when Java programming

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBostonian will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to use implement and use Java's toString() method. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.

How To: Write a "Hello, World" program in Java

Want to program your own Java games and applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBostonian will have you coding your own Java apps in no time flat. Specifically, this lesson discusses how to write that most basic of applications, a "Hello, World" program. For more information, including detailed, step-by-step instructions, watch this helpful programmer's guide.