Threat actors are disseminating malware through the ms-appinstaller URI scheme, which Microsoft has now disabled by default. This method was chosen because it can evade security precautions like Microsoft Defender SmartScreen. Microsoft’s Threat Intelligence team has identified it as an entry point for ransomware, used by threat actors like Storm-0569, Storm-1113, Sangria Tempest, and Storm-1674. The actors spoof legitimate apps, trick users into installing malicious packages, and avoid early detection. Microsoft is advising users to implement phishing-resistant authentication to safeguard against these attacks.

‘Cyber incident’ continues to disrupt computer networks at some Sudbury-area schools – CTV News
Several schools in the Sudbury area continue to face disruptions in their computer networks due to an ongoing cyber incident. This has caused challenges for