Approach of detecting LDoS attack based on time window statistic

Abstract

Through analysised of normal traffic and attack flow,statistic result showed that the normal traffic throughout had an obviously degrade and attack flow had a short time abnormity pulse with higher amplitude.An approach of de-tecting LDoS attack based on time window statistic was presented.Experiments on different length of sample time were conducted in a test environment established on simulation network.Test results show that the detection probability is more than 96%,false negative and false positive are less than 3%.

Keywords

• low-rate denial of service;retransmission time out;time window;statistic;detection