Android through the eyes of a hacker

The internal architecture of the Android OS, its partitions and file systems used, the principle of operation of update mechanisms, and internal security tools are examined. The access control in the Android OS, privileges, methods of obtaining root rights, customization, and installation of custom firmware are discussed. Tools for disassembling, debugging, and analyzing mobile application code are described, along with examples of code modification aimed at changing software functions and integrating third-party modules into applications. Detailed recommendations for code deobfuscation and bypassing anti-debugging measures, as well as practical tips for protecting one's applications from decompilation and research are provided. Information on malware for the Android platform, vulnerabilities they exploit, and code examples of such programs are presented. The use of standard Android functions for non-standard purposes and ways to combat malware are discussed. The second edition includes information about changes and innovations in Android 14.