BLEShark Nano: A Compact Wireless Multi-Tool for Hackers

InfiShark’s BLEShark Nano Is a Pocket-Friendly Espressif ESP32-Powered Bluetooth and Wi-Fi Tool

Built around a Seeed Studio XIAO ESP32C3, this tiny tool delivers powerful potential — but in a proprietary firmware.

A portable device for testing Bluetooth. Wi-Fi, and Infrared vulnerabilities—including games, apps, auto updates, and a buttery-smooth interface.

The multi-functional Bluetooth Low Energy (BLE) and Wi-Fi security-testing and debugging tool is priced at at $35, at claimed 10 percent discount over the eventual retail price — with discounts rising if you need more than one unit, maxing out at 20 per cent for “early bird” backers of a five-pack.

The campaign is now live on Kickstarter, with all hardware expected to ship in March or April 2025.

Original article continues below.

Ontario-based InfiShark Tech is preparing to launch a crowdfunding campaign for the BLEShark Nano, an Espressif ESP32-powered tool designed for testing Bluetooth and Wi-Fi systems for vulnerabilities.

“The BLEShark Nano is a pocket-sized [Espressif] ESP32 based device that brings a massive amount of pentesting features, apps, and games into a very compact device,” the company writes of its creation. “In a sense, it is the Swiss Army knife of wireless tools. The BLEShark Nano packs a surprising array of features designed for network testing and experimentation, making it an accessible and effective tool for those interested in cybersecurity!”

InfiShark’s BLEShark Nano is an upcoming Seeed XIAO ESP32C3-based pentesting tool for Bluetooth and Wi-Fi. (: InfiShark Tech)

The Swiss Army Knife of Hacking Tools.

The compact gadget, housed in a 3D-printed case, features a 0.66″ OLED display below which three tactile buttons act as the user interface. Inside the housing is a Seeed Studio XIAO ESP32C3 microcontroller board and a 500mAh battery — good, the company claims, for an average of 10 hours of active use between charges.

In use, the firmware delivers a range of tools designed for penetration testing of wireless networks: BLE Beacon spamming, Wi-Fi access point spamming, captive portal creation, and Bad-BT keystroke injection — plus a selection of reimplementations of classic arcade games like Space Invaders and Pong, for downtime. The gadget can also be used as a Bluetooth remote, with plans to launch additional features including infrared support.

InfiShark is planning to launch a crowdfunding campaign for the gadget at the end of this month, with interested parties invited to sign up on Kickstarter to be notified when it goes live. Additional details are available on Hackaday.io and the company website, though while the company maintains a GitHub repository with STL files for the case it says the firmware is “proprietary and closed-source.” source

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BLEShark Nano: Your Ultimate Wireless Testing Companion

The BLEShark Nano combines cutting-edge technology with an intuitive interface, offering full control over wireless network interactions. Whether you’re securing your network or developing custom apps and games, this tool provides the flexibility and power you need.

Now, let’s get into the features and functions in more detail!

 What is it?

The BLEShark Nano is an all-in-one sleek & compact multi-tool for hackers, tech enthusiasts, and cybersecurity beginners. With features like Wi-Fi, BLE, and IR pentesting tools, getting into cybersecurity has never been easier to access with the BLEShark Nano.

The BLEShark Nano is a powerful, ESP-32-based tool for attacks like Bluetooth Low Energy (BLE) spamming, Wi-Fi spamming, deauthentication attacks, a wide range of network testing functions, and even various wireless apps. With its sleek OLED interface, exploring and testing vulnerabilities in BLE and Wi-Fi networks has never been more intuitive or accessible. A 500mah battery keeps it on for 4+ hours while spamming. The durable case is 3D printed with PLA-CF, closed up tightly with M3x12 screws and brass inserts.

 Why did we make it?

We built the BLEShark Nano to empower security researchers and hobbyists with a compact, cheap, unique and versatile tool for assessing vulnerabilities in BLE and Wi-Fi bands. It’s an all-in-one platform designed to educate and inspire, offering a hands-on approach to wireless security without the need for multiple, specialized tools.

 What makes it special?

What sets the BLEShark Nano apart is its ability to automatically download and run custom firmware that unlocks a suite of:

• BLE spoofing (and spamming),
• Wi-Fi beacon spamming,
• Captive portals,
• Wi-Fi deauth attacks,
• Games,
• BadBT,
• Apps (like a TikTok scroller),
• Automatic Updates,
• And much more.
• Upcoming Features include:
• Handshake Capturing,
• BadUSB,
• Evil Portal Cred Detector,
• And MUCH more.

Whether you’re conducting professional network assessments or diving into wireless security as a hobby, the BLEShark Nano offers an unparalleled combination of power, ease-of-use, and flexibility.

• Small enough to fit in the palm of your hand, it’s designed for portability and ease of use, no matter where you are. The BLEShark Nano offers all the power of high-end wireless testing gear in a sleek, easy-to-carry form.
• No extra hardware or accessories needed: The BLEShark Nano is a fully self-sufficient device, unlike many other tools that require additional setups or builds to work effectively.
• 500mAh Rechargeable Battery: A massive internal battery provides up to 16 hours of continuous operation with BLE, and up to 6 hours of continuous operation with Wi-Fi on a full charge. On average, you can expect 10 hours of use per charge.

Using Bluetooth Low Energy, you can broadcast connection requests to many devices – great for testing your device’s Bluetooth capabilities. Select specific targets like Android, Windows, iOS, or Samsung devices. In addition, you can use this feature across all platforms simultaneously.

This feature works by broadcasting BLE advertisement packets, which trigger popups or notifications on various devices like Android, iOS, Windows, and Samsung. This is achieved by sending out specially crafted packets that mimic legitimate Bluetooth service requests or notifications, thus creating popups on the targeted devices with pairing prompts or similar connection requests.

With the BLEShark Nano, you can create and broadcast hundreds of custom Wi-Fi network names (SSIDs) for legitimate testing and educational activities. Whether you’re testing network resilience, conducting penetration testing, or performing network traffic management simulations, the BLEShark Nano empowers you to generate Wi-Fi networks in a controlled environment. Create networks with randomly generated SSIDs, rickrolls, funny names, duplicate SSIDs, and custom creations.

This feature is particularly useful for security professionals and network administrators who want to see how their infrastructure handles a large number of SSID broadcasts, test how devices react to duplicate or misleading network names, or to simulate a public environment.

Any Bluetooth-enabled device completely trusts any Bluetooth-connected input devices like keyboards and mice. The BLEShark Nano can emulate a Bluetooth HID device, allowing it to be recognized by the target system as a normal Bluetooth keyboard. You can write your own payloads to send any key sequence over Bluetooth, enabling control over the target device, just like the USB Rubber Ducky—but wirelessly. This can be used for testing Bluetooth input vulnerabilities or automating actions on target devices.

This feature allows you to write and upload custom scripts that are then executed over a Bluetooth connection. This enables the BLEShark Nano to send precise and pre-programmed keystroke sequences to any paired device. You can deploy attacks like opening terminal windows, launching programs, or even typing commands—all without needing physical access to the target.

This is a great tool for vulnerability testing, penetration tests, or simply automating common actions on paired devices.

The BLEShark Nano takes network control and testing to the next level with its powerful captive portal feature. A captive portal is a webpage that users must interact with before gaining access to a network. You’ve probably encountered these on public Wi-Fi networks that require you to log in, accept terms of service, or enter a password. The BLEShark Nano allows you to create your own customized captive portal that you can deploy instantly across any Wi-Fi network you set up.

This feature works by creating a Wi-Fi access point (AP) that any device can connect to, but instead of granting full internet access, it redirects users to a web page that you control. Whether you want to conduct security assessments or just show off your creative custom pages, the captive portal offers endless possibilities for network testing. Once users connect to your network, they are automatically directed to your captive portal without needing to type anything into the browser.

You might be thinking, what are some use cases of this (without actual internet)?

• Interactive Games:
  Embed small games or quizzes to keep users engaged, even when they’re not accessing the web.
• Informational Pages:
  Set up informational splash pages to share important content with users who connect to your Wi-Fi network.
• Wi-Fi Terms and Conditions:
  Create a terms and conditions page that must be accepted before connecting to the internet. This is a common feature of public Wi-Fi networks, which can demonstrate how users often accept such agreements without reading the fine print.

Unlike many existing tools, the BLEShark Nano offers a fully standalone captive portal feature. There’s no need for additional hardware, complex setups, or relying on external networks. Simply power it on, set up your portal, and start testing or demonstrating its capabilities in seconds.

The BLEShark Nano also doubles as a mini entertainment hub! Whether you’re waiting for a process to finish or just looking for a bit of fun, these built-in games will keep you entertained wherever you are.

Play timeless arcade hits, including:

• Flappy Bird: Test your reflexes and skill by guiding the bird through endless obstacles. Simple to play, hard to master!
• Invaders: Take command of your spaceship and defend Earth from waves of aliens in this legendary shoot ’em up.
• Pong: Experience the game that started it all—bounce the ball back and forth in this iconic two-player challenge, available for solo play against AI or multiplayer fun.
• Breakout: Smash your way through walls of bricks with a bouncing ball in this addictive classic.
• T-rex game: It’s the classic “no internet” game! Jump over the cacti in the desert!

The BLEShark Nano is packed with many convenient apps to simplify tasks and keep you entertained. These built-in tools are designed for both practical use and a bit of fun. Let’s get into them!

TxtViewer:
Easily view and navigate through custom text files, perfect for notes, presentations, or documentation. With smooth scrolling, seamless word wrapping, and an intuitive built-in scroll bar, you can browse long documents effortlessly – even on the tiny display. (Yep, you can use this for exams )

Video Scroller:
Connect effortlessly to your phone and unlock a suite of functions with the press of a button. Control every aspect of your watching experience – just pair with the BLEShark Nano first!

Mini Programmable Keypad:
Take control with a customizable keypad that fits in the palm of your hand. Using BLE, assign up to 8 shortcuts, to streamline your workflow or gaming. Whether for productivity or fun, it offers quick access to your favorite commands.

For more information about this app, visit here.

Timers:
Set timers with ease, with options ranging from 1 second to 99 minutes. Perfect for quick tasks, workouts, studying, or reminders. Just a few taps and you’re ready to go, all managed from the BLEShark Nano.

Stopwatch:
Transform your device into a sleek, easy-to-use stopwatch. With just a tap, you can start, stop, and reset the stopwatch with absolute precision.

Stay effortlessly updated with automatic updates, ensuring you never miss out on exciting new features. Each update introduces a variety of enhancements, and we’re dedicated to continuously expanding our offerings. Your BLEShark Nano will only improve over time, making it an even more powerful tool!

The BLEShark Nano offers an extensive range of customization options through the Extra Settings Mode, giving you full control over the device’s behavior and features. It creates its own captive portal, allowing you to connect and manage all settings directly from your browser on any connected device. The sleek and intuitive user interface ensures simple customization, with transitions and an optional extra dark mode for easy navigation.

Emergency Mode: 
Sometimes, you may have to get away from an app quickly, and that’s where the Emergency Mode of the BLEShark Nano comes into play. By holding the left and right buttons together for half a second, you can instantly launch Flappy Bird, no matter where you are in the device. It might sound a bit unconventional, but when the situation calls for it, a quick switch to a harmless game could be just what you need.

SPIFFS System:
The SPIFFS (Serial Peripheral Interface Flash File System) integration in the BLEShark Nano ensures that every little configuration and setting you make on the device is securely stored, so you never lose your work. This powerful embedded file system is used to save your custom settings, Wi-Fi SSIDs, BLE spam configurations, captive portal credentials, captive portal HTML code, TxtViewer files, Ducky Scripts, and much more, directly onto the device’s onboard memory.

With SPIFFS, even if the BLEShark Nano is powered off, reset, or updated, all your configurations remain safe, providing seamless continuity for your work. No need to constantly re-enter or reconfigure your preferred settings—your personalized setup is always ready to go!

More Games:
We will add some more classics like a high-speed racing/drifting game, a platformer, and more!

BadUSB:
Instead of using Bluetooth, you can transform the device into a USB device, allowing you to execute powerful scripts quickly and efficiently.

PC Monitor: 
Using BLE, you can connect your BLEShark Nano to your PC to monitor real-time performance metrics, including CPU, GPU, and memory usage, all at a glance!

Custom Apps: 
Build and run your own custom apps directly on the device, tailored to your imagination. Want to share your creation? Submit it to us, and your app could become part of the official firmware for the entire BLEShark Nano community to enjoy!

If you’re excited to discover even more features we’re planning to add, check out our GitHub for the latest updates and future developments!

• It’s Extremely Affordable: Similar tools can cost hundreds of dollars or require custom builds – the BLEShark Nano is priced with accessibility in mind.
• It Has an Easy Setup: No coding or technical expertise required to get started. Charge it up (if not shipped pre-charged), complete the easy setup (for OTA updates), and you’re ready to go!
• It’s Built for the Future: As technology evolves, so will your BLEShark Nano. We are committed to continually releasing firmware updates with new features and improvements!
• Unique Features: Unlike other tools, the BLEShark Nano includes built-in apps and games, adding functionality and entertainment that competitors lack.

On top of this, we will also:

Create Better Packaging: We’ll design premium packaging that not only protects your BLEShark Nano but also elevates your unboxing experience. The new packaging will feature an amazing design with eco-friendly materials and organized compartments for each accessory.

($7,500) Infrared Control Capability

Hitting this goal unlocks an all-new infrared transceiver, allowing BLEShark Nano to control a wide range of electronics like TVs, air conditioners, LED lights, and stereo systems. We’ll also include a preset library for easy setup, adding powerful new functionality not available in the original version.

($10,000) Expanded Color Choices

At this level, we’ll introduce more color options, including a transparent case and a crisp, modern white. These additional colors let you personalize your BLEShark Nano to your style.

($12,500) Custom Silicone Protection

When we reach our final goal, we’ll introduce a durable, soft silicone case custom-fitted for the BLEShark Nano. Choose from a range of colors to add a unique, protective touch to your device. As a token of our appreciation, every backer will receive 30% off the silicone bumper!

To craft the best BLEShark Nano possible, we had to create a lot of prototypes. Each of these prototypes helped shape the final product. Here are some of the prototypes we’ve built:

We’re excited to continue pushing boundaries with each new update, ensuring the BLEShark Nano grows with you. And with its blend of cutting-edge features, ease of use, and affordability, it’s more than just a tool—it’s a gateway to innovation.

So whether you’re testing Bluetooth vulnerabilities, creating custom Wi-Fi networks, or just passing the time with some games, the BLEShark Nano has you covered.

Note: USB-C cable not included with shipment. Another note: This is a prototype of the final product, some hardware features may vary. source

Check out our github repo for more information INCLUDING source code: https://github.com/grdashark/BLEShark

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