移动目标防御的经验博弈论分析

Achintya Prakash, Michael P. Wellman
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引用次数: 52

摘要

移动目标防御的有效性取决于如何通过特定的系统操作随着时间的推移进行部署,以及攻击者如何响应这种部署。我们定义了一个通用的网络防御场景,并使用经验博弈论技术检查攻击和防御策略之间的相互作用。在这种方法中,场景是由模拟器程序定义的,从系统模拟中得到的数据被用来诱导一个博弈模型。我们探索了一个由72个游戏实例组成的空间,由代理目标、攻击成本和防御方检测攻击行为的能力的差异来定义。我们观察到一系列定性战略行为,它们在不同的环境条件下以明确的模式变化。特别是,我们发现威慑防御的有效性对探测能力非常敏感,在没有完善的探测能力的情况下,防御者往往被驱使采取主动的移动目标行动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Empirical Game-Theoretic Analysis for Moving Target Defense
The effectiveness of a moving target defense depends on how it is deployed through specific system operations over time, and how attackers may respond to this deployment. We define a generic cyber-defense scenario, and examine the interplay between attack and defense strategies using empirical game-theoretic techniques. In this approach, the scenario is defined procedurally by a simulator, and data derived from systematic simulation is used to induce a game model. We explore a space of 72 game instances, defined by differences in agent objectives, attack cost, and ability of the defender to detect attack actions. We observe a range of qualitative strategic behaviors, which vary in clear patterns across environmental conditions. In particular, we find that the efficacy of deterrent defense is critically sensitive to detection capability, and in the absence of perfect detection the defender is often driven to proactive moving-target actions.
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