An Analysis of Impact of End-to-end Delay on LDoS Flows in the Internet

Low-Rate Denial of Service (LDoS) attack has been a hot topic in network security area in the last decade. LDoS flows are affected by the dynamical environment of the Internet, making it difficult to understand the behaviors of LDoS flows at the receiver side. In this paper, we studied the impact of end-to-end delay on LDoS flows in order to provide a foundation for detecting and defense of LDoS attacks. We gathered data of LDoS flows from the Internet and analyzed their traffic patterns. The experimental results have shown that end-to-end delays can distort LDoS flows greatly although they are sent in regular patterns.