How to mod the case of a USB Rubber Ducky for a squeeze-to-press button

Introduction

The USB Rubber Ducky is a powerful tool for security researchers, but it lacks a physical button to trigger its functionality. HAK5 considered several options during development, and an elegant solution was found: layering stickers inside the case above the button, allowing you to squeeze the case to press the button.

In this guide, we'll show you how to mod the case of the USB Rubber Ducky to add a squeeze-to-press button.

What you need

Step 1 Remove the metal sheath

How to mod the case of a USB Rubber Ducky for a squeeze-to-press button, Remove the metal sheath: step 1, image 1 of 1

First remove the the USB-C cap
Jam a flat object, such as your fingernail or a small screwdriver, in between the metal sheath and the Ducky on both sides.
Remove the metal sheath by pulling it off the Ducky.

Edit

Step 2 Open the case

How to mod the case of a USB Rubber Ducky for a squeeze-to-press button, Open the case: step 2, image 1 of 2

How to mod the case of a USB Rubber Ducky for a squeeze-to-press button, Open the case: step 2, image 2 of 2

Tool used on this step:

iFixit Opening Picks (Set of 6)

$4.99

Buy

Carefully separate the top and bottom plastics by inserting a plastic pick at the seam.
The top and bottom are held together with matching ports and posts.

Edit

Step 3 Apply the spacer stickers

How to mod the case of a USB Rubber Ducky for a squeeze-to-press button, Apply the spacer stickers: step 3, image 1 of 1

"Rain-drop" sticker cutouts can be found along the right side of the included sticker sheet. If you lost your sticker sheet, cut out a sticker of the appropriate size from any label paper or masking tape you have on hand.
Apply two to four layers of the sticker on the inside of the case, directly opposite the button.
The more layers you apply, the easier it will be to press the button. Start with 2-3 layers, then adjust to your preference through testing.