We present a new approach that bridges binary analysis techniques with
machine learning classification for the purpose of providing a static and
generic evaluation technique for opaque predicates, regardless of their
constructions. We use this technique as a static automated deobfuscation tool
to remove the opaque predicates introduced by obfuscation mechanisms. According
to our experimental results, our models have up to 98% accuracy at detecting
and deob-fuscating state-of-the-art opaque predicates patterns. By contrast,
the leading edge deobfuscation methods based on symbolic execution show less
accuracy mostly due to the SMT solvers constraints and the lack of scalability
of dynamic symbolic analyses. Our approach underlines the efficiency of hybrid
symbolic analysis and machine learning techniques for a static and generic
deobfuscation methodology.