用强化学习自动分析内存快照,提升恶意软件调查效率。
A Novel Reinforcement Learning Model for Post-Incident Malware Investigations
- 基于Q-learning和马尔可夫决策过程构建自动化调查框架
- 在模拟环境中检测率优于传统方法,复杂度影响模型表现
- 适合网络安全响应与司法取证人员参考
本文提出一种新型强化学习(RL)模型,用于优化网络事件响应中的恶意软件取证调查。该模型通过Q-learning与马尔可夫决策过程(MDP)训练系统识别实时内存快照中的恶意软件模式,实现取证任务自动化。模型依据详细的恶意软件工作流程图,结合静态、行为分析及机器学习算法,指导对恶意软件痕迹的分析。研究在模拟Windows环境的受控测试中进行,使用自建数据集模拟恶意软件感染。实验结果表明,相较于传统方法,该模型显著提升了恶意软件检测率,但性能受环境复杂度和学习率影响。研究结论指出,尽管强化学习在自动化取证中潜力显著,但其在不同恶意软件类型上的有效性仍需持续优化奖励机制与特征提取方法。
原文摘要 · Abstract (English)
This Research proposes a Novel Reinforcement Learning (RL) model to optimise malware forensics investigation during cyber incident response. It aims to improve forensic investigation efficiency by reducing false negatives and adapting current practices to evolving malware signatures. The proposed RL framework leverages techniques such as Q-learning and the Markov Decision Process (MDP) to train the system to identify malware patterns in live memory dumps, thereby automating forensic tasks. The RL model is based on a detailed malware workflow diagram that guides the analysis of malware artefacts using static and behavioural techniques as well as machine learning algorithms. Furthermore, it seeks to address challenges in the UK justice system by ensuring the accuracy of forensic evidence. We conduct testing and evaluation in controlled environments, using datasets created with Windows operating systems to simulate malware infections. The experimental results demonstrate that RL improves malware detection rates compared to conventional methods, with the RL model's performance varying depending on the complexity and learning rate of the environment. The study concludes that while RL offers promising potential for automating malware forensics, its efficacy across diverse malware types requires ongoing refinement of reward systems and feature extraction methods.
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