摘要
In this paper, we to detect encrypted botnet propose a novel method traffic. During the traffic preprocessing stage, the proposed payload extraction method can identify a large amount of encrypted applications traffic. It can filter out a large amount of non-malicious traffic, greatly in, roving the detection efficiency. A Sequential Probability Ratio Test （SPRT）-based method can find spatialtemporal correlations in suspicious botnet traffic and make an accurate judgment. Experimental resuks show that the false positive and false nega- tive rates can be controlled within a certain range.
In this paper, we propose a novel method to detect encrypted botnet traffic. During the traffic preprocessing stage, the proposed payload extraction method can identify a large amount of encrypted applications traffic. It can filter out a large amount of non-malicious traffic, greatly improving the detection efficiency. A Sequential Probability Ratio Test (SPRT)-based method can find spatial-temporal correlations in suspicious botnet traffic and make an accurate judgment. Experimental results show that the false positive and false negative rates can be controlled within a certain range.
基金
supported by the National Basic Research Program of China(973 Program)under Grant No.2011CB302903
the Priority Academic Program Development of Jiangsu Higher Education Institutions under Grant No.YX002001
