Null Byte How-Tos

How To: Bypass UAC & Escalate Privileges on Windows Using Metasploit

UAC is something we've all dealt with on Windows, either as a user, administrator, or attacker. It's a core feature of the Windows security model, and for the most part, it does what it's supposed to. But it can be frustrating as a hacker when attempting privilege escalation, but it's easy enough to bypass UAC and obtain System access with Metasploit.

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: Create Packets from Scratch with Scapy for Scanning & DoSing

By using almost any packet-crafting tool, a hacker can perform denial-of-service (DoS) attacks. With the power to create just about any packet with any characteristics, a hacker can easily find one that will take down a host or network. Nmap and Hping are effective packet manipulation tools, but there's also Scapy, which is almost infinitely customizable.

How To: Hack Together a YouTube Playing Botnet Using Chromecasts

Imagine being able to play a video instantly on hundreds of thousands of devices across the globe. It's totally possible, as long as all of those devices have a Chromecast plugged in. When Chromecasts are left exposed to the internet, hackers can use add them to a botnet that can play YouTube videos at will. The "attack" is made even easier thanks to a simple Python program called CrashCast.

How To: The Paranoid Mac Owner's Guide to Defeating Remote Snooping & Evil Maid Attacks

If you're worried about the security of your Mac, there are easy measures to prevent the most dangerous attacks. Named after the tactic of accessing an unattended computer in a hotel room, we can thwart "evil maid" attacks with Do Not Disturb and LuLu, free macOS tools by Objective-See that keep an eye on unattended computers and flag suspicious network connections that indicate a malware infection.

How To: Obtain Valuable Data from Images Using Exif Extractors

Metadata contained in images and other files can give away a lot more information than the average user might think. By tricking a target into sending a photo containing GPS coordinates and additional information, a hacker can learn where a mark lives or works simply by extracting the Exif data hidden inside the image file.

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.

How To: Target Bluetooth Devices with Bettercap

An incredible amount of devices use Bluetooth or Bluetooth Low Energy to communicate. These devices rarely have their radios switched off, and in some cases, are deliberately used as trackers for lost items. While Bluetooth devices support MAC address randomization, many manufacturers do not use it, allowing us to use tools like Bettercap to scan for and track Bluetooth devices.

How To: A Hacker's Guide to Programming Microcontrollers

While hackers know and love the Raspberry Pi, many don't know of its cheaper cousin, the microcontroller. Unlike a Pi, which can be used more or less like a regular computer, microcontrollers like the Wi-Fi connected ESP8266 require some necessary programming skill to master. In this guide, we'll build an Arduino program from scratch and explain the code structure in a way anyone can understand.

How To: Exploit EternalBlue on Windows Server with Metasploit

Particular vulnerabilities and exploits come along and make headlines with their catchy names and impressive potential for damage. EternalBlue is one of those exploits. Originally tied to the NSA, this zero-day exploited a flaw in the SMB protocol, affecting many Windows machines and wreaking havoc everywhere. Here, we will use EternalBlue to exploit SMB via Metasploit.

Android for Hackers: How to Backdoor Windows 10 & Livestream the Desktop (Without RDP)

The Windows 10 desktop and microphone can be livestreamed without using Remote Desktop Protocol (RDP) software and without opening any ports on the target computer. A hacker with low user privileges can monitor and exfiltrate a target's every move and private conversation in real time no matter where they are. Hackers are watching and listening, and there are few ways to protect yourself.

How To: Use Photon Scanner to Scrape Web OSINT Data

Gathering information on an online target can be a time-consuming activity, especially if you only need specific pieces of information about a target with a lot of subdomains. We can use a web crawler designed for OSINT called Photon to do the heavy lifting, sifting through URLs on our behalf to retrieve information of value to a hacker.

How To: Mine Twitter for Targeted Information with Twint

Open-source intelligence researchers and hackers alike love social media for reconnaissance. Websites like Twitter offer vast, searchable databases updated in real time by millions of users, but it can be incredibly time-consuming to sift through manually. Thankfully, tools like Twint can crawl through years of Twitter data to dig up any information with a single terminal command.

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: Discover & Attack Raspberry Pis Using Default Credentials with Rpi-hunter

When setting up a Raspberry Pi, it's easy to overlook changing the default password. Like many IoT devices, the Raspberry Pi's default Raspbian operating system installs with a widely-known default password, leaving the device vulnerable to remote access. Using a tool called rpi-hunter, hackers can discover, access, and drop custom payloads on any weak Pi connected to the same network.

How To: Steal Usernames & Passwords Stored in Firefox on Windows 10 Using a USB Rubber Ducky

A lot of people still trust their web browser to remember every online account password for them. If you're one of those users, you need to adopt a more secure way of managing passwords, because browser-stored passwords are hacker gold mines. With a USB Rubber Ducky and physical access to your computer, they can have a screenshot of all your credentials in their inbox in less than 60 seconds.

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: Understand & Use IPv4 to Navigate a Network

You may not know it, but the IPv4 address of your computer contains tons of useful information about whatever Wi-Fi network you're on. By knowing what your IPv4 address and subnet mask are telling you, you can easily scan the whole network range, locate the router, and discover other devices on the same network.

How To: Intercept Security Camera Footage Using the New Hak5 Plunder Bug

In a previous guide, I demonstrated how to extract images from a security camera over Wi-Fi using Wireshark, provided you know the password. If you don't know the password, you can always get physical with the Hak5 Plunder Bug. Using this small LAN tap, we can intercept traffic like images from a Wi-Fi or IP security camera if we can get physical access to the Ethernet cable carrying the data.

How To: Spy on Network Relationships with Airgraph-Ng

What if you could easily visualize which access point every Wi-Fi device nearby is connected to in a matter of seconds? While programs like Airodump-ng can intercept this wireless information, making it easy for hackers to use and understand is another challenge. Fortunately, a tool called Airgraph-ng can visualize the relationships between Wi-Fi devices from only a few seconds of wireless observation.

How To: Use Websploit to Scan Websites for Hidden Directories

Websites are often misconfigured in ways that allow an attacker to view directories that are not ordinarily meant to be seen. These directories can contain sensitive information such as private credentials or configuration files that can be used to devise an attack against the server. With a tool called Websploit, hackers can scan targets for these hidden directories without difficulty.

How To: Track a Target Using Canary Token Tracking Links

Canary tokens are customizable tracking links useful for learning about who is clicking on a link and where it's being shared. Thanks to the way many apps fetch a URL preview for links shared in private chats, canary tokens can even phone home when someone checks a private chat without clicking the link. Canary tokens come in several useful types and can be used even through URL shorteners.

Prev Page