Null Byte Features
How To: Find Vulnerable Webcams Across the Globe Using Shodan
Search engines index websites on the web so you can find them more efficiently, and the same is true for internet-connected devices. Shodan indexes devices like webcams, printers, and even industrial controls into one easy-to-search database, giving hackers access to vulnerable devices online across the globe. And you can search its database via its website or command-line library.
How To: Crack Password-Protected Microsoft Office Files, Including Word Docs & Excel Spreadsheets
Microsoft Office files can be password-protected in order to prevent tampering and ensure data integrity. But password-protected documents from earlier versions of Office are susceptible to having their hashes extracted with a simple program called office2john. Those extracted hashes can then be cracked using John the Ripper and Hashcat.
How To: Find Identifying Information from a Phone Number Using OSINT Tools
Phone numbers often contain clues to the owner's identity and can bring up a lot of data during an OSINT investigation. Starting with a phone number, we can search through a large number of online databases with only a few clicks to discover information about a phone number. It can include the carrier, the owner's name and address, and even connected online accounts.
How To: Make Your Own Bad USB
Hello, everyone! Many of you don't even know about my existence here on Null Byte, so I thought of contributing something rather interesting. Recently, someone asked how to make your own "Bad USB," and I promised to make a how-to on this topic. In addition, it would be nice to have something related on our WonderHowTo world. So here it is!
How To: Use Kismet to Watch Wi-Fi User Activity Through Walls
Your home has walls for privacy, but Wi-Fi signals passing through them and can be detected up to a mile away with a directional Wi-Fi antenna and a direct line of sight. An amazing amount of information can be learned from this data, including when residents come and go, the manufacturer of all nearby wireless devices, and what on the network is in use at any given time.
How To: Use SpiderFoot for OSINT Gathering
During a penetration test, one of the most important aspects of engaging a target is information gathering. The more information you have coming into an attack, the more likely the attack is to succeed. In this article, I'll be looking at SpiderFoot, a modular cross-platform OSINT (open-source intelligence) gathering tool.
Android for Hackers: How to Turn an Android Phone into a Hacking Device Without Root
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.
How to Hack Wi-Fi: Stealing Wi-Fi Passwords with an Evil Twin Attack
While Wi-Fi networks can be set up by smart IT people, that doesn't mean the users of the system are similarly tech-savvy. We'll demonstrate how an evil twin attack can steal Wi-Fi passwords by kicking a user off their trusted network while creating a nearly identical fake one. This forces the victim to connect to the fake network and supply the Wi-Fi password to regain internet access.
How To: Crack SSH Private Key Passwords with John the Ripper
Secure Shell is one of the most common network protocols, typically used to manage remote machines through an encrypted connection. However, SSH is prone to password brute-forcing. Key-based authentication is much more secure, and private keys can even be encrypted for additional security. But even that isn't bulletproof since SSH private key passwords can be cracked using John the Ripper.
How To: Spy on Traffic from a Smartphone with Wireshark
So you want to know what that person who is always on their phone is up to? If you're on the same Wi-Fi network, it's as simple as opening Wireshark and configuring a few settings. We'll use the tool to decrypt WPA2 network traffic so we can spy on which applications a phone is running in real time.
How to Hack Wi-Fi: Get Anyone's Wi-Fi Password Without Cracking Using Wifiphisher
While password cracking and WPS setup PIN attacks get a lot of attention, social engineering attacks are by far the fastest way of obtaining a Wi-Fi password. One of the most potent Wi-Fi social engineering attacks is Wifiphisher, a tool that blocks the internet until desperate users enter the Wi-Fi password to enable a fake router firmware update.
Tutorial: Create Wordlists with Crunch
Greetings all. Before I get into the tutorial, I would like to mention that I am fairly new to Null Byte (been lurking for some time though), and what really appeals to me about this place is its tight, family-like community where everyone is always willing to help each other and the constant search for knowledge that inhabits this subdomain is a driving motivator for me to join in. I'm glad I arrived at the right time. Anyway, wipes tears (not really)...
How To: Scrape Target Email Addresses with TheHarvester
Open-source data scraping is an essential reconnaissance tool for government agencies and hackers alike, with big data turning our digital fingerprints into giant neon signs. The problem is no longer whether the right data exists, it's filtering it down to the exact answer you want. TheHarvester is a Python email scraper which does just that by searching open-source data for target email addresses.
How To: Intercept Images from a Security Camera Using Wireshark
It's common for IoT devices like Wi-Fi security cameras to host a website for controlling or configuring the camera that uses HTTP instead of the more secure HTTPS. This means anyone with the network password can see traffic to and from the camera, allowing a hacker to intercept security camera footage if anyone is watching the camera's HTTP viewing page.
How To: There Are Hidden Wi-Fi Networks All Around You — These Attacks Will Find Them
There are hidden Wi-Fi networks all around you — networks that will never show up in the list of available unlocked and password-protected hotspots that your phone or computer can see — but are they more secure than regular networks that broadcast their name to any nearby device?
How To: Install Kali Live on a USB Drive (With Persistence, Optional)
Hi there, nullbytes :) I've recently seen many questions regarding VMs with Kali, and personally I prefer using a Live Boot USB to get Kali without removing my system (and for many reasons).
How To: Escape Restricted Shell Environments on Linux
The moment arrives when you finally pop a shell on the web server you've been working on, only you find yourself in a strange environment with limited functionality. Restricted shells are often used as an additional line of defense and can be frustrating for an attacker to stumble upon. But with enough patience and persistence, it is possible to escape these restricted environments.
Become an Elite Hacker Part 4: Hacking a Website. [Part 1]
Welcome back my fellow army of hackers! Today we'll be hacking a website. Hacking is technically not the right word used here. It should be defacing! So we are going to deface a website...
How To: Find OSINT Data on License Plate Numbers with Skiptracer
While conducting an OSINT investigation, it's important to be able to pull in information based on any clue you uncover. In particular, license plate information can turn up everywhere, from photos to live data to on your own street. You could use that data to find the VIN, see if a Tinder date has hit anyone, find out who's blocking your driveway, and so on. Skiptracer can help get the ball rolling.
How To: Phish for Social Media & Other Account Passwords with BlackEye
Social media accounts are a favorite target for hackers, and the most effective tactics for attacking accounts on websites like Facebook, Instagram, and Twitter are often based on phishing. These password-stealing attacks rely on tricking users into entering their passwords into a convincing fake webpage, and they have become increasingly easy to make thanks to tools like BlackEye.
How To: Hunt Down Social Media Accounts by Usernames with Sherlock
When researching a person using open source intelligence, the goal is to find clues that tie information about a target into a bigger picture. Screen names are perfect for this because they are unique and link data together, as people often reuse them in accounts across the internet. With Sherlock, we can instantly hunt down social media accounts created with a unique screen name on many online platforms simultaneously.
How To: Beginner's Guide to OWASP Juice Shop, Your Practice Hacking Grounds for the 10 Most Common Web App Vulnerabilities
Web application vulnerabilities are one of the most crucial points of consideration in any penetration test or security evaluation. While some security areas require a home network or computer for testing, creating a test website to learn web app security requires a slightly different approach. For a safe environment to learn about web app hacking, the OWASP Juice Shop can help.
How To: The Top 80+ Websites Available in the Tor Network
There are nearly 100,000 unique onion service addresses online with over two million people using Tor every single day. Join me as I explore a small fraction of what the Tor network has to offer.
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: Enable Monitor Mode & Packet Injection on the Raspberry Pi
The Raspberry Pi Zero W and Pi 3 Model B+ include integrated Wi-Fi, Bluetooth Low Energy, and more than enough power to run Kali Linux. They sound like perfect all-in-one penetration testing devices, but the lack of support for monitor mode and packet injection usually meant buying a supported Wi-Fi adapter. Now, it's possible to use monitor mode on the built-in Wi-Fi chip with Nexmon.
How To: Hack Wi-Fi & Networks More Easily with Lazy Script
Wi-Fi tools keep getting more and more accessible to beginners, and the LAZY script is a framework of serious penetration tools that can be explored easily from within it. This powerful and simple tool can be used for everything from installing new add-ons to grabbing a WPA handshake in a matter of seconds. Plus, it's easy to install, set up, and utilize.
How To: Hack Android Using Kali (Remotely)
Hello Hackers! Welcome to my 2nd Post: This is a tutorial explaining how to hack android phones with Kali.
How To: Perform Local Privilege Escalation Using a Linux Kernel Exploit
Getting root is considered the Holy Grail in the world of Linux exploitation. Much like SYSTEM on Windows, the root account provides full administrative access to the operating system. Sometimes even a successful exploit will only give a low-level shell; In that case, a technique called privilege escalation can be used to gain access to more powerful accounts and completely own the system.
How To: Detect When a Device Is Nearby with the ESP8266 Friend Detector
Smartphones and other Wi-Fi enabled devices send radio signals called probe frames to locate nearby wireless networks, which makes them easy to track by listening for their unique MAC address. To show how this kind of tracking works, we can program a NodeMCU in Arduino to sniff the air for packets from any device we want to track, turning on an LED when it's detected nearby.
How To: Gain SSH Access to Servers by Brute-Forcing Credentials
SSH is one of the most common protocols in use in modern IT infrastructures, and because of this, it can be a valuable attack vector for hackers. One of the most reliable ways to gain SSH access to servers is by brute-forcing credentials. There are a few methods of performing an SSH brute-force attack that will ultimately lead to the discovery of valid login credentials.
How To: Scan, Fake & Attack Wi-Fi Networks with the ESP8266-Based WiFi Deauther
The price of hacking Wi-Fi has fallen dramatically, and low-cost microcontrollers are increasingly being turned into cheap yet powerful hacking tools. One of the most popular is the ESP8266, an Arduino-programmable chip on which the Wi-Fi Deauther project is based. On this inexpensive board, a hacker can create fake networks, clone real ones, or disable all Wi-Fi in an area from a slick web interface.
How To: Set Up a Wi-Fi Spy Camera with an ESP32-CAM
The ESP32-CAM is a convenient little camera module with a lot of built-in power, and you can turn one into an inconspicuous spy camera to hide in any room. There's only one issue: it does omit a USB port. That makes it a little harder to program, but with an ESP32-based board, FTDI programmer, and some jumper wires, you'll have a programmed ESP32 Wi-Fi spy camera in no time.
How To: Set Up a Headless Raspberry Pi Hacking Platform Running Kali Linux
The Raspberry Pi is a credit card-sized computer that can crack Wi-Fi, clone key cards, break into laptops, and even clone an existing Wi-Fi network to trick users into connecting to the Pi instead. It can jam Wi-Fi for blocks, track cell phones, listen in on police scanners, broadcast an FM radio signal, and apparently even fly a goddamn missile into a helicopter.
How To: Write an XSS Cookie Stealer in JavaScript to Steal Passwords
JavaScript is one of the most common languages used on the web. It can automate and animate website components, manage website content, and carry out many other useful functions from within a webpage. The scripting language also has many functions which can be used for malicious purposes, including stealing a user's cookies containing passwords and other information.
How To: Track Wi-Fi Devices & Connect to Them Using Probequest
Wi-Fi devices are continually emitting "probe frames," calling out for nearby Wi-Fi networks to connect to. Beyond being a privacy risk, probe frames can also be used to track or take over the data connection of nearby devices. We'll explain how to see nearby devices emitting probe frames using Probequest and what can be done with this information.
How To: Easily Detect CVEs with Nmap Scripts
Nmap is possibly the most widely used security scanner of its kind, in part because of its appearances in films such as The Matrix Reloaded and Live Free or Die Hard. Still, most of Nmap's best features are under-appreciated by hackers and pentesters, one of which will improve one's abilities to quickly identify exploits and vulnerabilities when scanning servers.
How To: Perform Advanced Man-in-the-Middle Attacks with Xerosploit
A man-in-the-middle attack, or MitM attack, is when a hacker gets on a network and forces all nearby devices to connect to their machine directly. This lets them spy on traffic and even modify certain things. Bettercap is one tool that can be used for these types of MitM attacks, but Xerosploit can automate high-level functions that would normally take more configuration work in Bettercap.
How To: Hack 5 GHz Wi-Fi Networks with an Alfa Wi-Fi Adapter
Wi-Fi networks come in two flavors: the more common 2.4 GHz used by most routers and IoT devices, and the 5 GHz one offered as an alternative by newer routers. While it can be frustrating to attack a device that moves out of reach to a 5 GHz Wi-Fi network, we can use an Alfa dual-band adapter to hack Wi-Fi devices on either type of network.
Hack Like a Pro: How to Hack Facebook (Facebook Password Extractor)
Welcome back, my novice hackers! As we saw in my first tutorial on Facebook hacking, it is not a simple task. However, with the right skills and tools, as well as persistence and ingenuity, nothing is beyond our capabilities.
How To: Control Network Traffic with Evil Limiter to Throttle or Kick Off Devices
If you find yourself with a roommate hogging limited data bandwidth with video games or discover a neighbor has invited themselves into your Wi-Fi network, you can easily take back control of your internet access. Evil Limiter does this by letting you control the bit rate of any device on the same network as you, allowing you to slow or even stop data transfer speeds for them completely.