基于云计算的恶意代码防御系统

Malicious code defense system based on cloud computing

针对当前恶意代码检测系统存在的查杀能力较弱、资源占用率大、自身易受攻击等问题,综合利用云查杀、主动防御和多代理协同处理等技术提出了一种新的恶意代码防御系统.该系统将核心检测分析功能分离到云端以服务形式提供,终端只具备安全状态和行为监控等基本代理功能,海量代理构成的监控云快速发现未知恶意代码,检测分析云通过分布式处理和多查杀引擎协同快速分析识别恶意代码.为了测试系统的可行性和有效性,使用6 835个恶意代码样本开展了与传统模式的对比实验,系统的查杀成功率达到97.3%,CPU占用率不高于29%.与传统模式相比,新体系具有更高的查杀能力和更低的终端资源占用率.

To solve the problems of the traditional host-based malware detection system with low detect-and-kill capacity,high resource consumption,and vulnerability to be attacked,a malicious code defense architecture was proposed based on cloud security technology,active defense and multi-agent coordination technology.In this architecture,the malware analysis engine was moved into the cloud,and the client agent only kept lightweight malware monitor function.The architecture was composed of monitoring cloud and detection and analysis cloud.The monitoring cloud based on massive client agents could quickly finds unknown malware,and the detection and analysis cloud analyzed the malware with distributed processing and multi-engine.In order to test the applicability of the prototype system,6 835 malware samples were used to carry out comparative experiments with the traditional model,and the system achieved a detection rate of 97.3% and CPU occupancy rate of no more than29%.The test result shows that the proposed method provides high kill capacity and end-user′s low resources consumption.