Hook Detection

Hook detection on Android and iOS is an essential security measure used to prevent malicious manipulation of app behavior at runtime. Hooking allows attackers to intercept and modify function calls, enabling activities such as bypassing authentication, altering in-app purchases, or extracting sensitive data. On Android, hooking frameworks like Frida, Xposed, and LSPosed are commonly used by attackers to inject and execute custom code. Similarly, on iOS, tools like Cycript and Frida enable runtime manipulation of app functions. To counter these threats, developers implement hook detection by monitoring for suspicious process injections, checking for known hooking libraries, and enforcing runtime integrity verification.

Despite these defenses, attackers continuously refine their evasion techniques to bypass detection mechanisms. For example, they use obfuscation, custom-built hooking tools, or even modify an app's binary to disable security checks. As a result, effective hook detection relies on a multi-layered approach, including runtime code integrity verification, API call monitoring, and heuristic analysis of suspicious behaviors. Additionally, integrating hook detection with other security measures such as jailbreak and root detection, runtime application self-protection (RASP), and app hardening significantly enhances resilience against dynamic attacks. By continuously adapting security strategies, developers can reduce the risk of unauthorized modifications and maintain the integrity of their applications.