BLEShark Nano vs O.MG Cable

Overview

The O.MG Cable and the BLEShark Nano's Bad-BT feature both perform HID injection - they type keystrokes into a target computer as if they were a keyboard. But the delivery mechanism and threat model could not be more different. The O.MG Cable is a hardware implant disguised as an ordinary USB cable. Bad-BT is a wireless Bluetooth keyboard emulator. One requires physical access to plug in. The other requires Bluetooth pairing but no physical contact with the target machine.

What Is the O.MG Cable?

The O.MG Cable, created by MG (Mike Grover) and sold by Hak5, looks identical to a standard USB charging cable. Inside the connector housing is a WiFi-enabled microcontroller with HID injection capability. When plugged into a target computer, it enumerates as a keyboard and executes pre-loaded payloads. It also supports data exfiltration over its USB data lines and has a WiFi command-and-control channel for remote triggering.

The current Elite version costs $180+ and includes features like keystroke logging, self-destruct (erases payload on command), geofencing (triggers based on WiFi SSID detection), and support for multiple payload slots. It is designed for red team operations where the cable is left behind as a persistent implant.

What Is Bad-BT?

Bad-BT is the BLEShark Nano's Bluetooth HID injection feature. It makes the Nano appear as a Bluetooth keyboard to a target device. Once paired, it executes DuckyScript payloads - the same scripting language used by the USB Rubber Ducky and other HID injection tools. The Nano includes an on-device DuckyScript editor for writing and modifying payloads in the field. Range is approximately 10 meters over Bluetooth.

Where the O.MG Cable Wins

Stealth. The O.MG Cable is physically indistinguishable from a normal USB cable. It can sit on a desk, plugged into a target machine, indefinitely. No one will question a USB cable. The Nano is a visible electronic device that would raise questions if found near a target's workstation.

No pairing required. When you plug in a USB cable, the OS automatically enumerates it as a keyboard. There is no pairing prompt, no Bluetooth discovery, no user interaction. The target does not need to accept anything. Bad-BT requires Bluetooth pairing, which means the target device must accept the pairing request. On many systems, this pops up a visible dialog.

Persistence. The O.MG Cable can remain plugged in as a permanent implant. It can be remotely triggered via WiFi to execute new payloads days or weeks after deployment. The Nano's Bad-BT requires active Bluetooth connection and has limited battery life (500mAh).

USB data exfiltration. The Elite version can log keystrokes from the target machine through the USB connection and exfiltrate data wirelessly over WiFi. This is a fundamentally different capability - not just injecting input but stealing output. The Nano's Bad-BT is input-only.

Geofencing and self-destruct. The O.MG Cable can detect nearby WiFi networks and trigger payloads based on SSID, or erase itself if it detects it has been moved to an analysis lab. These operational security features are purpose-built for red team implant scenarios.

sequenceDiagram
    participant A as Attacker
    participant O as O.MG Cable
    participant T as Target Computer
    participant N as BLEShark Nano

    Note over A,O: O.MG Cable Attack Flow
    A->>O: Pre-load payload + plant cable
    O->>T: Plug in - auto-enumerates as USB keyboard
    T-->>O: No approval needed
    O->>T: Execute payload immediately
    A->>O: WiFi C2 - trigger new payloads remotely

    Note over A,N: Bad-BT Attack Flow
    A->>N: Write DuckyScript on device
    N->>T: Bluetooth discovery - "Keyboard" appears
    T-->>N: User must accept pairing
    N->>T: Execute payload after pairing
    Note over N,T: Range limited to ~10m Bluetooth

USB enumeration is automatic - Bluetooth pairing requires user acceptance

Where the BLEShark Nano Wins

No physical access needed. Bad-BT works over Bluetooth at up to 10 meters. You do not need to touch the target machine or be in the same room. The O.MG Cable must be physically plugged into the target's USB port, which means you need hands-on access to their machine or you need to social-engineer them into using your cable.

On-device script editing. The Nano has a built-in DuckyScript editor. You can write, modify, and test payloads directly on the device without a separate computer. The O.MG Cable requires a web interface or companion app to load payloads.

Multi-function. After the HID injection is done, the Nano is still a full WiFi/BLE/IR multi-tool. Scan the target network, enumerate BLE devices, clone IR remotes - all from the same device. The O.MG Cable does HID injection and data exfiltration. That is its entire feature set.

Price. $36.99 versus $180+. The Nano costs a fraction of the O.MG Cable and does far more beyond HID injection.

Reusability. The Nano is always in your pocket, ready for any wireless task. The O.MG Cable is deployed as an implant - once it is planted, it stays there until retrieved or burned.

Different Threat Models

The O.MG Cable targets a scenario where you have brief physical access to plant an implant and then need persistent, covert, remote access to the target machine. It models an insider threat or a social engineering drop scenario.

Bad-BT targets a scenario where you are within Bluetooth range of an unlocked or auto-pairing device and need to inject commands wirelessly. It models a proximity-based wireless attack.

These are genuinely different operational scenarios. A red team might use the O.MG Cable for long-term persistent access and the Nano's Bad-BT for opportunistic, quick-hit wireless HID injection during an on-site engagement.

Final Verdict

The O.MG Cable is a specialized implant tool built for covert, persistent HID attacks. It is better at being stealthy, persistent, and covert than the Nano. If your engagement calls for planting a hardware implant, the O.MG Cable is purpose-built for that.

The BLEShark Nano's Bad-BT is one feature among many on a multi-function wireless tool. It trades stealth and persistence for wireless operation, versatility, and price. If you need HID injection as part of a broader wireless security toolkit - and you do not need the implant-grade stealth - the Nano delivers that alongside a full suite of WiFi, BLE, and IR tools.

They target different threat models. Pick the one that matches your engagement profile.

HID injection tools should only be used during authorized security assessments. Unauthorized access to computer systems is illegal. Always obtain written permission before testing.