Metadata in the binary points to the username "52pojie," a reference to a well-known Chinese cybersecurity forum. How to Protect Your Device On Google Play, Joker, Facestealer, & Coper Banking Malware

A file named Setup.exe compiled using .NET 10.0 NativeAOT .

Recent threat intelligence highlights a sophisticated execution chain involving a Windows-based dropper:

The malware family (also known as Bread ) is a persistent mobile spyware threat that primarily targets Android devices. While famously associated with malicious Android apps, recent campaigns have utilized a dropper named Setup.exe to deliver advanced payloads. Malware Profile: Joker (Bread)

Simulating user clicks to interact with ads and subscription pages. Taking screenshots and making phone calls.

Using NativeAOT makes reverse engineering difficult because the code is compiled directly to native machine code rather than standard intermediate language.

Subscription fraud and data theft. It stealthily signs users up for premium wireless services by intercepting SMS messages to capture one-time passwords (OTPs). Key Capabilities: Stealing contact lists and device information. Reading and sending SMS messages.