De-obfuscating ZKM Control-Flow Flattening with ASM
De-obfuscating ZKM control-flow flattening with ASM, using bytecode rewriting to reconstruct the original Java control flow and logic, with the tools and offsets documented.
Tag: bytecode
Reversing V8 Bytecode: Format, Version Fingerprinting, and Disassembly
Reversing the V8 bytecode format, fingerprinting the engine version and disassembling bytecode to read the compiled JavaScript internals, with the commands and code included.
Analyzing and Recovering a Major Company's VM Protection
Recovering a VM-protection bytecode-to-native compiler, mapping virtual instructions back to real ones to de-virtualize the protected code, including the pitfalls and the fix.
Reversing the Protobuf Chat Protocol of a Live-Streaming App
Reversing the Protobuf-based chat protocol of a live-streaming app, decoding the message schemas from bytecode to understand how the chat client talks to the server.