OWASP Global AppSec EU 2026 Vienna

Mobile application penetration tests can be challenging. In order to find vulnerabilities in the OWASP MAS Testing Profile L2, security testers have to simulate attacks on compromised devices. When apps protect themselves with advanced static and dynamic hardening techniques, security testers often rely on instrumentation in order to assess the security of the app at runtime.

This talk will present some of these challenges as seen in real world mobile apps and then present “frooky”, a Frida-powered hook runner based on structured I/O. This tool was consolidated together with OWASP MAS leadership and released as a standalone project for OWASP MASTG. We will show you what it can do, how it was developed and how you can use it for any mobile app penetration testing efforts in general.