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Boubakr Nour

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#artificial intelligence Preprint Sep 2026

Evidence-Grounded Retrieval for Investigation Hunt Lead Generation from CTI Reports

AHLERT is introduced, a system that automatically extracts relevant, environment-aware, and hunt leads from threat reports through a hybrid retriever that combines dense vector search with multi-hop traversal over a knowledge graph seeded with MITRE ATT&CK.

A. Prakash, Boubakr Nour, M. Pourzandi et al. · 0 citations
#artificial intelligence Preprint Aug 2026

From Threat Intelligence to Detection: Knowledge-driven Enrichment and Template-based Rule Grounding for Automated Sigma Rule Generation

AUTOSIGMA, an automated solution for transforming unstructured CTI reports into relevant Sigma rules that enables accurate, context-aware, and relevant rule generation, outperforms alternative solutions and LLM models in rule validity, rule relevancy, MITRE ATT&CK technique coverage, and robustness to input quality.

Sepehr Ghaffarzadegan, Boubakr Nour, M. Pourzandi et al. · 0 citations

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