Microsoft temporarily disabling the MSIX ms-appinstaller protocol handler in Windows. A security vulnerability in the installer component was exploited by threat actors to deliver malware such as Emotet, TrickBot, and Bazaloader. Microsoft says it’s working to completely plug the security hole and prevent further exploitation. The company is also recommending developers update the app download links on their websites by removing “ms-app installer:?source=” schemes so that the. MSIX package or.appinstalling. file can be downloaded.”]
Source: https://thehackernews.com/2022/02/microsoft-temporarily-disables-msix-app.html