retrowrite

Retrowrite is a static binary rewriter designed for x64 and aarch64 architectures, enabling the insertion of instrumentation into binaries without the need for source code, thereby supporting use cases in fuzzing and sanitization. The tool employs the symbolization technique to ensure zero overhead during binary rewriting and includes features such as AFL-coverage and ASan instrumentation, along with a variant (KRetrowrite) specifically for rewriting Linux kernel modules. Different algorithms and supported features are available for the x64 and arm64 versions, accommodating various binary types and compiler specifications.