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一种面向未知工业通信协议规约的异常行为检测方法
Alternative TitleUnknown industrial communication protocol rule abnormal behavior detecting method
万明; 尚文利; 赵剑明; 曾鹏; 于海斌
Department工业控制网络与系统研究室
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Country中国
Subtype发明
Status有权
Abstract本发明公开了一种面向未知工业通信协议规约的异常行为检测方法,分为在线自学习阶段和实时检测阶段,其中在线自学习阶段主要完成对网络原始通信数据的分析与特征提取,形成事件序列,将事件序列作为隐马尔可夫模型的输入对模型进行训练,通过迭代最终获得优化的隐马尔可夫模型和行为概率门限;实时检测阶段利用优化的隐马尔可夫模型对实时处理的事件序列进行行为概率计算,通过与行为概率门限对比,完成对工业通信行为的异常检测。本发明能够对使用未知工业通信协议规约的工业通信数据流进行合法性检测,实时发现异常工业通信行为并产生报警,保障工业控制系统的网络通信安全性。
Other AbstractThe method involves obtaining a communication data packet in industrial control network. A behavior probability threshold value is determined. Optimized initial parameter is obtained. The obtained communication data packet in the industrial control network is pre-processed to generate a session event sequence. A behavior probability of the event sequence is calculated by adopting a forward algorithm and compared with the behavior probability threshold value to perform abnormity behavior detection of industrial communication protocol rule.
PCT Attributes
Application Date2016-05-26
2017-12-05
Date Available2019-10-25
Application NumberCN201610356186.3
Open (Notice) NumberCN107438052A
Language中文
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/21427
Collection工业控制网络与系统研究室
Affiliation中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
万明,尚文利,赵剑明,等. 一种面向未知工业通信协议规约的异常行为检测方法[P]. 2017-12-05.
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