FlutterShell is a new macOS backdoor spread by malvertising. Built with Flutter, it uses a WebVie...

Summary

FlutterShell is a newly discovered macOS backdoor that leverages malvertising campaigns for distribution. Built using the Flutter framework with a WebView-based architecture, it enables attackers to dynamically deliver adware payloads while maintaining persistent backdoor access. Security researchers have identified multiple variants and documented its command structure in recent attack campaigns.

Indicators of Compromise

• malware — FlutterShell

Entities