通信学报 ›› 2017, Vol. 38 ›› Issue (5): 19-30.doi: 10.11959/j.issn.1000-436x.2017075

• 学术论文 • 上一篇    下一篇

基于联合特征的LDoS攻击检测方法

吴志军,张景安,岳猛,张才峰   

  1. 中国民航大学电子信息与自动化学院,天津 300300
  • 修回日期:2017-02-17 出版日期:2017-05-01 发布日期:2017-05-28
  • 作者简介:吴志军(1965-),男,河南固始人,博士,中国民航大学教授、博士生导师,主要研究方向为网络空间安全。|张景安(1989-),男,山东临沂人,中国民航大学硕士生,主要研究方向为信息安全、拒绝服务攻击的入侵检测。|岳猛(1984-),男,河北沧州人,中国民航大学讲师,主要研究方向为信息安全、云计算、拒绝服务攻击的入侵检测。|张才峰(1991-),男,山东济南人,中国民航大学硕士生,主要研究方向为信息安全、拒绝服务攻击的入侵检测。
  • 基金资助:
    国家自然科学基金资助项目(U1533107);国家自然科学基金资助项目(U1433105);中央高校基本科研业务基金资助项目(3122016D003);中国民航大学研究生课程案例开发基金资助项目;天津市自然科学重点基金资助项目(17JCZDJC30900))

Approach of detecting low-rate DoS attack based on combined features

Zhi-jun WU,Jing-an ZHANG,Meng YUE,Cai-feng ZHANG   

  1. College of Electronics Information and Automation,Civil Aviation University of China,Tianjin 300300,China
  • Revised:2017-02-17 Online:2017-05-01 Published:2017-05-28
  • Supported by:
    The National Natural Science Foundation of China(U1533107);The National Natural Science Foundation of China(U1433105);Fundamental Scientific Research Foundation of the Central University(3122016D003);Case Development Project of Graduate Program in Civil Aviation University of China;Key Project of Tianjin Natural Science Foundation(17JCZDJC30900))

摘要:

低速率拒绝服务(LDoS,low-rate denial of service)攻击是一种降质服务(RoQ,reduction of quality)攻击,具有平均速率低和隐蔽性强的特点,它是云计算平台和大数据中心面临的最大安全威胁之一。提取了LDoS攻击流量的3个内在特征,建立基于BP神经网络的LDoS攻击分类器,提出了基于联合特征的LDoS攻击检测方法。该方法将LDoS攻击的3个内在特征组成联合特征作为BP神经网络的输入,通过预先设定的决策指标,达到检测LDoS攻击的目的。采用LDoS攻击流量专用产生工具,在NS2仿真平台和test-bed网络环境中对检测算法进行了测试与验证,实验结果表明通过假设检验得出检测率为 96.68%。与现有研究成果比较说明基于联合特征的LDoS攻击检测性优于单个特征,并具有较高的计算效率。

关键词: 低速率拒绝服务攻击, 联合特征, BP神经网络, 异常检测

Abstract:

LDoS (low-rate denial of service) attack is a kind of RoQ (reduction of quality) attack which has the characteristics of low average rate and strong concealment.These characteristics pose great threats to the security of cloud computing platform and big data center.Based on network traffic analysis,three intrinsic characteristics of LDoS attack flow were extracted to be a set of input to BP neural network,which is a classifier for LDoS attack detection.Hence,an approach of detecting LDoS attacks was proposed based on novel combined feature value.The proposed approach can speedily and accurately model the LDoS attack flows by the efficient self-organizing learning process of BP neural network,in which a proper decision-making indicator is set to detect LDoS attack in accuracy at the end of output.The proposed detection approach was tested in NS2 platform and verified in test-bed network environment by using the Linux TCP-kernel source code,which is a widely accepted LDoS attack generation tool.The detection probability derived from hypothesis testing is 96.68%.Compared with available researches,analysis results show that the performance of combined features detection is better than that of single feature,and has high computational efficiency.

Key words: low-rate denial of service attack, united features, BP neural network, anomaly detection

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