Fortinet Reverses Flutter-based Android Malware “Fluhorse” | FortiGuard Labs – June 2023

Android/Fluhorse is a recently discovered malware family that emerged in May 2023. What sets this malware apart is its utilization of Flutter, an open-source SDK (software development kit) renowned among developers for its ability to build applications compatible with Android, iOS, Linux, and Windows platforms using a single codebase. While previous instances of threat actors using Flutter for malware exist, such as MoneyMonger, they actually used Flutter for its cross-platform UI elements without carrying the actual malicious payload. So, despite Flutter application reversing being notoriously difficult, MoneyMonger can actually be quite easily reversed with the usual Android reversing techniques.

Eastern Asian Android Assault - FluHorse - Check Point Research – May 2023

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