Microsoft disables MSIX protocol handler abused in malware attacks
December 28, 2023 at 02:05PM Microsoft disabled the MSIX ms-appinstaller protocol handler due to multiple financially motivated threat groups exploiting it to infect Windows users with malware. The attackers used the CVE-2021-43890 vulnerability to bypass security measures and distribute malware. Microsoft recommends installing the patched App Installer version 1.21.3421.0 or later and advised disabling the … Read more