From Obfuscated to Obvious: A Comprehensive JavaScript Deobfuscation Tool for Security Analysis

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Presented at NDSS 2026 by

Huajun Chai

Lingyun Ying

Dongchao Zhou

Dongbin Wang

www.ndss-symposium.org

JavaScript's widespread adoption has made it an attractive target for malicious attackers who employ sophisticated obfuscation techniques to conceal harmful code. Current deobfuscation tools suffer from critical limitations that severely restrict their practical effectiveness. Existing tools struggle with diverse input formats, address only specific obfuscation types, and produce cryptic output that impedes human analysis.