Cloud Server Signature Rule Processing for Intrusion Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current network security devices face limitations in protection capability due to CPU resource constraints and varying deployment scenarios, leading to incomplete loading of signature rules, which results in inadequate protection for all security devices, especially those not configured with specific rules.
Innovation Solution
A cloud server receives and analyzes signature rule usage status information from connected security devices to identify the most active threat rules, generating update information that is then sent to each device to ensure real-time rule updates and improve protection capabilities across the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If security devices load all signature rules, then protection capability is improved, but CPU resource consumption increases and device complexity increases
Solution Approach 1:
A cloud server is introduced as an intermediary to manage signature rule distribution. The cloud server receives usage status information from multiple security devices, performs correlation analysis to identify the most active threat signature rules, and distributes only these critical rules to appropriate devices. This mediator approach resolves the contradiction by centralizing the complexity of determining which rules to load while keeping individual security devices simple and resource-efficient.
2Device complexity
If security devices load signature rules based on operator configuration, then device complexity is reduced, but protection capability deteriorates due to incomplete rule coverage
Solution Approach 1:
The system implements a feedback mechanism where security devices report their signature rule usage status information to the cloud server. The cloud server analyzes this feedback data along with threat intelligence to determine which signature rules are most actively needed across the network. This feedback loop enables dynamic, data-driven rule distribution that improves protection capability while maintaining configuration simplicity at the device level.
Solution Approach 2:
The system changes the parameter of signature rule selection from static operator configuration to dynamic cloud-driven selection based on usage status information and threat activity. The cloud server adjusts which signature rules are distributed to which devices based on real-time network conditions and threat patterns, transforming the rigid parameter-based selection into a flexible, adaptive process that improves both protection capability and operational simplicity.
3Use of energy by moving object
If different security devices load different signature rules based on deployment scenarios, then resource efficiency is improved, but network-wide protection capability deteriorates
Solution Approach 1:
The cloud server provides a universal signature rule distribution service that serves multiple security devices across different deployment scenarios. By analyzing aggregated usage status information from various devices and identifying the most active threat signature rules network-wide, the system ensures that each device receives appropriate rules for its specific scenario while contributing to and benefiting from network-wide protection. This universal approach resolves the contradiction by coordinating rule distribution across the entire network rather than optimizing for individual devices in isolation.
Data Source
AI summary
A signature rule processing method, a server, and an intrusion prevention system is provided. The method includes: performing, by a cloud server, correlation analysis on signature rule usage status information of each security device connected to the cloud server and a latest signature rule set published by the cloud server, to obtain a most active threat signature rule identification list, and sending, by the cloud server, update information to each security device to update a signature rule after generating the update information according to the most active threat signature rule identification list. The present invention is applicable to the field of network security systems.