Poeschl / DeDefender

A simple one-page website and browser addon which unwraps the mcas.ms links to their real ones.

DeDefender

Just a simple webpage stored in a html file and a browser extension. It has an input box which accepts an url which is protected by Microsoft Cloud Defender and unpacks it. Those urls can be retrieved by the Office 365 Outlook or Teams.

Features

• Unwraps Urls from the Microsoft Cloud Defender

Use page from GitHub Pages

1. Goto https://poeschl.github.io/DeDefender
2. Use it

Install page locally

1. Download the singe-file-application as dedefender.html from here
2. Open it in your browser
3. Use it

Install browser extension

The browser extension will automatically convert any anchor starting with https://mcas-proxyweb.mcas.ms to the unwrapped reference on every https://*.mcas.ms web page.

1. Download the Chrome extension or FireFox addon.
2. Install them in your browser (somewhere in the addons/extensions settings)

Note

This software will get no versioning and lives on the bloody main branch.

Development

Run npm run dev to get the development environment at http://localhost:5173.