arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2601.17907cs.CRcs.LG
收藏

FARM: 在概念漂移下进行少样本适应的恶意软件家族分类

FARM: Few-shot Adaptive Malware Family Classification under Concept Drift

Centre for Secure Information Technologies (CSIT)(安全信息科技中心)

Numan Halit Guldemir, Oluwafemi Olukoya, Jesús Martínez-del-Rincón

AI总结:

本文提出FARM框架,用于检测和适应Windows PE恶意软件家族分类中的协变量漂移和标签漂移。通过三元组自编码器和动态阈值检测,实现少样本适应和重训练,提升分类性能。

摘要:

恶意软件分类模型在概念漂移下常出现性能下降,本文提出FARM框架,用于检测和适应Windows PE恶意软件家族分类中的协变量漂移和标签漂移。FARM使用三元组自编码器将样本投影到判别潜在空间,通过DBSCAN聚类和动态阈值实现无监督漂移检测。框架采用少样本策略,仅需少量标记样本即可纳入新类别。当足够漂移样本积累时,支持完整重训练,允许长期模型更新。在BenchMFC数据集上的实验表明,FARM在协变量漂移下分类性能提升5.6%,使用少样本适应在未见过的恶意软件家族上实现平均F1分数0.85,重训练后提升至0.94。这些结果表明FARM为动态环境中有限监督下的概念漂移-aware恶意软件家族分类提供了有效方法。

英文摘要:

Malware classification models often suffer performance degradation under concept drift due to evolving threat landscapes and the emergence of novel malware families. This paper presents FARM (Few-shot Adaptive Recognition of Malware), a unified framework for detecting and adapting to both covariate drift and label drift in Windows Portable Executable (PE) malware family classification. FARM uses a triplet autoencoder to project samples into a discriminative latent space, enabling unsupervised drift detection through DBSCAN clustering and dynamic thresholding. To enable rapid adaptation, the framework employs a few-shot strategy that can incorporate new classes from only a small number of labeled samples. FARM also supports full retraining when sufficient drifted samples accumulate, allowing longer-term model updating. Experiments on the BenchMFC dataset show that FARM improves classification performance under covariate drift by 5.6%, and achieves an average F1 score of 0.85 on unseen malware families using few-shot adaptation, increasing to 0.94 after retraining. These results indicate that FARM provides an effective approach for drift-aware malware family classification in dynamic environments with limited supervision.

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。

↑