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@arex21/usb-guard

v1.0.4

Published

Block USB storage devices (disks/flash drives) on Windows while keeping mouse/keyboard working. Prebuilt Windows binary.

Vulnerabilities

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Links

Git

Maintainers

arex21arex21

Keywords

usbusb-guardstorageblockwindowssecurity

Readme

USB Guard

Block USB storage devices (external HDDs, flash drives, etc.) on Windows while keeping your mouse and keyboard fully working. USB Guard installs itself as a Windows service that auto-blocks newly plugged-in storage devices, and can re-enable everything with a single command.

Features

  • Blocks USB storage devices (matched by USBSTOR / USB\CLASS_08) — disks and flash drives.
  • Keeps mouse, keyboard, and their ancestor hubs safe (they are never disabled).
  • Runs as an auto-start Windows service so devices plugged in later get blocked too.
  • One-command start (install + run) and stop (stop + re-enable + uninstall).
  • Requires administrator privileges (auto-relaunches elevated via runas if needed).

Install (as a CLI via npm)

npm i -g @arex21/usb-guard

This downloads a prebuilt Windows (win32-x64) binary.

Usage

USB Guard - block USB storage devices (disks/flash drives)
Usage:
  usb-guard start - Start blocking the usb ports for storage devices
  usb-guard stop  - Allow ports to be allocated for storage device

Credits:
  Created by: Arex
  LinkedIn : https://www.linkedin.com/in/muhammad-owais-678622405/
  Email    : [email protected]

Commands

| Command | What it does | | --- | --- | | usb-guard start | Installs the UsbGuard service and starts it. The service continuously blocks USB storage. | | usb-guard stop | Stops the service, re-enables all previously blocked USB devices, and uninstalls the service. |

Both commands automatically request administrator elevation.

How it works

  • start → install (creates the UsbGuard auto-start service) + sc start UsbGuard.
  • The service scans the PnP device tree every ~30s, disabling only USB storage devnodes. Mouse/keyboard devnodes and every ancestor hub above them are protected.
  • stop → sc stop UsbGuard + re-enables all disabled devices (including phantom ghost disk nodes) and re-enumerates the bus to remount volumes + uninstalls the service.

Credits

  • Created by: Arex
  • LinkedIn: https://www.linkedin.com/in/muhammad-owais-678622405/
  • Email: [email protected]

License

MIT