关键词: 网络威胁, 态势评估, 细粒度, 模型

Abstract: Aiming at the problem that the existing network threat situation assessment method is coarse and can not meet the requirements of different managers, a fine grained network threat situation assessment method is proposed. According to the evaluation strategy from local to whole, from microcosmic to macroscopic, this paper assesses the threat node, the threat link, the threat path, the threat target and the whole network threat situation, which realizes the network threats in-depth analysis and fine-grained evaluation. The experimental analysis proves the rationality and accuracy of assessment results.

Key words: network threat, situation assessment, fine-grained, model