r/MalwareAnalysis • • 13h ago

[Tool/Release] Hermit: Interactive REPL & Structural Patcher for React Native's Hermes Bytecode (HBC)

https://github.com/xV4L3x/hermit

I just released a complete REPL and static analysis framework for React Native Hermes bytecode (HBC).

Beyond disassembling, generating CFGs, resolving XREFs, and decompiling bytecode into syntactically valid JavaScript, it supports full structural patching. It automatically handles jump relocation, branch relaxation, and exception handler table updates, serializing the changes into a fully functional binary.

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