From thehackernews.com
![MSIX App Installers](https://thehackernews.com/new-images/img/b/R29vZ2xl/AVvXsEghM6dLrTuBnGau01zPMlU_qhdFFBGHk6N4jTtsGW3CiMSGS0ZyOaOXSF3lmMeJizb1K0C3DPmTrzEVwQDYNuajM_ljcQYxSVnhbxsx4HD1qbuk_nJuHv0JNmtLF_Q80pMLPSqatwP2u-5Ui580LnJYcthFBqnLZ_O9y1Kx2YTqq2DNnTIIYxoJd3IS/s728-e1000/Windows-Update.jpg)
Microsoft last week announced that it’s temporarily disabling the MSIX ms-appinstaller protocol handler in Windows following evidence that a security vulnerability in the installer component was exploited by threat actors to deliver malware such as Emotet, TrickBot, and Bazaloader.
MSIX, based on a combination of .msi, .appx, App-V and ClickOnce installation technologies, is a universal Windows app package format that allows developers to distribute their applications for the desktop operating system and other platforms. ms-appinstaller, specifically, is designed to help users install a Windows app by simply clicking a link on a website.
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