Evaluating Retrieval-Augmented Generation for Explainable Malware Analysis

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Hauptverfasser: Ng, Jayson, Fard, Amin Milani
Format: Preprint
Veröffentlicht: 2026
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author Ng, Jayson
Fard, Amin Milani
author_facet Ng, Jayson
Fard, Amin Milani
contents Large Language Models (LLMs) are increasingly being used as security engineering tools to summarize and explain malware behavior to analysts. A common assumption is that Retrieval-Augmented Generation (RAG) improves explanation quality by injecting external security knowledge. In this work, we empirically evaluate this assumption for malware explanation using VirusTotal reports as structured input. Across multiple LLMs, we find that RAG frequently degrades explanation quality by introducing distracting or weakly related context and adding narrative noise or generic write-ups. Our results highlight a practical risk in security-critical pipelines for malware explanation that RAG can be counterproductive when structured security evidence is already sufficient. We argue that malware explanation is primarily a signal-extraction task, not a knowledge-retrieval problem, and outline design recommendations for secure development workflows.
format Preprint
id arxiv_https___arxiv_org_abs_2605_03140
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Evaluating Retrieval-Augmented Generation for Explainable Malware Analysis
Ng, Jayson
Fard, Amin Milani
Cryptography and Security
Large Language Models (LLMs) are increasingly being used as security engineering tools to summarize and explain malware behavior to analysts. A common assumption is that Retrieval-Augmented Generation (RAG) improves explanation quality by injecting external security knowledge. In this work, we empirically evaluate this assumption for malware explanation using VirusTotal reports as structured input. Across multiple LLMs, we find that RAG frequently degrades explanation quality by introducing distracting or weakly related context and adding narrative noise or generic write-ups. Our results highlight a practical risk in security-critical pipelines for malware explanation that RAG can be counterproductive when structured security evidence is already sufficient. We argue that malware explanation is primarily a signal-extraction task, not a knowledge-retrieval problem, and outline design recommendations for secure development workflows.
title Evaluating Retrieval-Augmented Generation for Explainable Malware Analysis
topic Cryptography and Security
url https://arxiv.org/abs/2605.03140