The 2.0.3 version of Murus Menulet for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The program belongs to Design & Photo Tools. This free software for Mac OS X is a product of murus.it.
From the developer:
Murus Menulet is a companion app that allows you to display packet filter (PF) status in OS X menu bar. Murus Menulet needs to install its daemon in order to work properly. The app will be loaded at boot time and run in background while Murus Menulet will be put to your user's login item and will be available each time you log in with this user.
You may want to check out more software for Mac, such as Murus Logs Visualizer, Murus or Murus Services, which might be related to Murus Menulet.