Android Service Interception via Dynamic Link Library Injection

The patent introduces a service router as an intermediary component between applications and services. The service router intercepts service calls and routes them to the actual service implementation, enabling monitoring and control without requiring false service names. This mediator approach allows the system to observe and evaluate service calls while maintaining legitimate service names, thus avoiding detection by malicious programs.

The patent implements preliminary evaluation of application permissions and service call legitimacy before the actual service execution occurs. By establishing a service router that pre-intercepts and evaluates service calls based on white lists, black lists, and feature data, the system can prevent malicious programs from accessing services before they can cause harm, without leaving detectable traces.

The service router acts as an intermediary layer that sits between applications and services, enabling security evaluation without changing the existing service interface architecture. Applications continue to call services through the standard Binder mechanism, but the service router intercepts these calls to evaluate permissions and route to appropriate services, thus maintaining development simplicity while adding security capabilities.

The service router is designed as a universal component that handles multiple functions: it routes service calls to the correct service implementation, evaluates application permissions against white lists and black lists, and monitors service access. This multi-functional design allows the system to maintain existing application development patterns while adding comprehensive security evaluation capabilities.

The service router serves as a mediator that sits between applications and services, enabling the system to maintain broad application access freedom while simultaneously monitoring and controlling service calls. The router intercepts service calls to evaluate them against security policies (white lists, black lists, feature data) before allowing access, thus preventing malicious programs from accessing services without restricting legitimate applications.

The system implements feedback mechanisms where the service router continuously monitors service calls and provides feedback to the system about application behavior. By evaluating service calls in real-time and comparing them against security policies, the system can dynamically allow or block access based on the application's legitimacy, maintaining freedom for trusted applications while blocking malicious ones.