API Call Security DLL Hooking for Dynamic Threat Response
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Solution Overview
Problem
Conventional methods for securing and managing API calls are insufficient, inefficient, or ineffective in addressing the dynamic and evolving nature of threats, often relying on static security rules and failing to provide comprehensive or real-time protection.
Innovation Solution
A system and method involving a security kernel driver and a protection service, with a security DLL injected into the API server to monitor and manage API calls, employing dynamic link library (DLL) hooking, prefiltering, and asynchronous/synchronous processing to analyze and secure API calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If static or predefined security rules are used to secure API calls, then implementation simplicity is maintained, but the system cannot cope with dynamic and evolving threats
Solution Approach 1:
The patent implements dynamic security rules that are automatically generated and updated based on real-time analysis of API call patterns, threat intelligence, and system behavior. The security policy engine continuously adapts rules without requiring manual intervention, allowing the system to respond to evolving threats while maintaining operational simplicity through automation.
Solution Approach 2:
The security system performs self-analysis and self-regulation by automatically monitoring API calls, detecting anomalies, generating security rules, and enforcing policies without external intervention. The system self-updates its security posture based on observed threats and patterns, reducing the need for manual configuration while maintaining high adaptability.
2Reliability
If encryption or authentication techniques are applied to secure API calls, then security is improved, but additional overhead and complexity are introduced
Solution Approach 1:
The system performs preliminary security assessments and authentication validations before API calls are fully processed. Security rules are pre-evaluated and cached where possible, allowing rapid decision-making during actual API call processing. This reduces the time penalty of security checks by preparing security contexts in advance.
Solution Approach 2:
The patent implements selective security processing where low-risk API calls that match established safe patterns can bypass extensive security checks and proceed quickly through the system. High-risk or anomalous calls receive full security scrutiny. This risk-based approach maintains strong security for critical threats while minimizing overhead for routine operations.
3Reliability
If API calls are monitored or analyzed at a single point or level, then system simplicity is maintained, but comprehensive or holistic security view is not achieved
Solution Approach 1:
The security monitoring system is segmented into multiple analysis points distributed across different layers of the API architecture. Each segment analyzes specific aspects of API calls (authentication, authorization, data validation, anomaly detection) independently, then combines results for comprehensive security assessment. This modular approach achieves holistic coverage while maintaining manageable complexity through clear separation of concerns.
Solution Approach 2:
The security analysis engine performs multiple functions simultaneously - authentication verification, authorization checking, anomaly detection, threat intelligence matching, and security logging - all within a unified multi-level monitoring framework. This universal approach provides comprehensive security coverage without requiring separate dedicated systems for each function, reducing overall complexity.
Data Source
AI summary
Systems and methods for securing and managing API calls. A security dynamic link library (DLL) is a user mode component that intercepts API calls from an API client to an API server. A security kernel driver is a kernel mode component that hooks API calls from the security DLL to the API server. A protection service receives, analyzes, and processes API calls from the security DLL and the security kernel driver.