关键词: 非结构化p2p僵尸网络, 复杂网络, 网络中心化, 节点失效, 鲁棒性

Abstract: Constant improvement of botnet structure has caused great threat to network security, so it is very important to study the inherent characteristics of botnet structure to defense this kind of attack. This paper simulated the unstructured P2P botnet from the perspective of complex network, then proposed metrics and applied the theory of complex centrality to analyze the robustness of the unstructured P2P botnet when it encountered nodes failure. The experimental results demonstrate that the unstructured P2P botnet displays high robustness when it encounters random nodes failure, but its robustness drops quickly when it encounters central nodes failure.

Key words: unstructured P2P botnet, complex network, centrality of network, node failure, robustness