#002 · Sample Analysis

In-Depth Analysis of the fast16 Malware

fast16 is a piece of malware with destructive capability. Analysts used AVL Code for purely static analysis, fully reconstructing the attack chain and delivering a detection tool plus YARA rules.

Built with AVL Code + the Landi model

Reverse EngineeringPE AnalysisYARAThreat Detection

Overview

This case takes a 308KB PE32 binary through purely static analysis. Cross-validating the Landi N2.5 reverse-engineering capability against the Antiy security knowledge base, the analysis fully reconstructed the attack chain, reached a verdict, and closed the loop from analysis and classification to detection tooling and knowledge retention.

Key results

Reconstructed the complete attack chain and malicious behavior of the fast16 sample
Delivered an HTML visual analysis report
Produced a zero-dependency, lightweight detection tool
Generated 5 YARA rules ready for production detection

Technical highlights

Self-built lightweight PE parserZero-dependency detection toolMulti-dimensional weighted scoring systemKernel-driver residue detectionLocating kernel components from user-mode files

Practical value

Delivers a plug-and-play incident-response tool ready for enterprise security operations and threat detection; the detection rules and scoring mechanism generalize to variants of the same family; and the case doubles as field validation of the vertical reverse-engineering capability of the Antiy Landi model.

Artifacts

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Session replays & reports are original records in Simplified Chinese · Built with AVL Code + the Landi model