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ClarAVy:一种可扩展且准确的恶意软件家族标注工具

ClarAVy: A Tool for Scalable and Accurate Malware Family Labeling

Robert J. Joyce, Derek Everett, Maya Fuchs, Edward Raff, James Holt

AI总结:

ClarAVy 针对现有恶意软件家族标注工具在解析、别名解析和聚合策略上的缺陷,采用变分贝叶斯方法聚合多款防病毒产品检测结果,在约 4000 万文件规模上实现可扩展且更准确的家族标注,并在 MOTIF 和 MalPedia 数据集上分别将准确率提升 8 和 12 个百分点。

摘要:

确定恶意文件所属的家族是网络攻击调查、归因和修复的重要组成部分。手动执行此任务耗时且需要专业知识。使用防病毒检测结果来标注恶意软件的自动化工具缺乏准确性和/或可扩展性,使其不足以用于实际应用。这些工具中普遍存在三个缺点:(1)防病毒检测结果的解析不正确,(2)家族别名解析过程中的错误,以及(3)不恰当的防病毒聚合策略。为了解决这些问题,我们创建了自己的恶意软件家族标注工具,名为 ClarAVy。ClarAVy 利用变分贝叶斯方法将来自多个防病毒产品的检测结果聚合为准确的家族标签。我们的工具可扩展到海量恶意软件数据集,我们通过标注约 4000 万个恶意文件对其进行了评估。在标注 MOTIF 和 MalPedia 数据集时,ClarAVy 的准确率分别比先前领先的工具高出 8 个百分点和 12 个百分点。

英文摘要:

Determining the family to which a malicious file belongs is an essential component of cyberattack investigation, attribution, and remediation. Performing this task manually is time consuming and requires expert knowledge. Automated tools using that label malware using antivirus detections lack accuracy and/or scalability, making them insufficient for real-world applications. Three pervasive shortcomings in these tools are responsible: (1) incorrect parsing of antivirus detections, (2) errors during family alias resolution, and (3) an inappropriate antivirus aggregation strategy. To address each of these, we created our own malware family labeling tool called ClarAVy. ClarAVy utilizes a Variational Bayesian approach to aggregate detections from a collection of antivirus products into accurate family labels. Our tool scales to enormous malware datasets, and we evaluated it by labeling $\approx$40 million malicious files. ClarAVy has 8 and 12 percentage points higher accuracy than the prior leading tool in labeling the MOTIF and MalPedia datasets, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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