hugmyndakassi/approxis-groundtruth

Binary2Groundtruth

Generates a ground truth map of a binary with the help of debug symbols.

Features

• Cross-platform
• Supports PE and ELF binaries.
• Generates detailed ground truth mappings.

Goal

Provide a cross-platform utility to generate ground truth mappings from binaries for further analysis and evaluation. Motivated by of Dennis Andriesse et al. on "An In-Depth Analysis of Disassembly on Full-Scale x86/x64 Binaries"(https://www.usenix.org/conference/usenixsecurity16/technical-sessions/presentation/andriesse).

Usage

Pre-process binaries

Currently the PDB/ELF files do not get automatically parsed with the help of llvm-pdb2yaml/llvm-obj2yaml.

Convert PDB to YAML dump

> $ llvm-pdbutil-<version> pdb2yaml -all <path_to_pdb> > dump

Convert ELF to YAML dump

> $ obj2yaml-<version> <path_to_elf> > dump

Create ground truth map from dump

> $ git clone https://github.com/LL-MM/approxis-groundtruth && cd approxis-groundtruth  
> $ cargo build --release  
> $ cargo run --release <path_to_yaml_dump> <path_to_binary>

Creates a debug report with statistics and two dumps named <binary_name>.yaml and <binary_name>.txt.

Outputs

YAML

If specified the tool dumps the generated mappings (as well as all functions, data, labels) in a human-friendly YAML file.

RAW

If specified the tool creates a mapping of every single byte within the binary and its corresponding flags.

• C: Code
  • I: Instruction Start
  • F: Function Start
  • R: Return
  • 3: Interrupt
• N: Alignment (mostly NOPs)
• D: Data
• U: Unknown

Dependencies

• llvm-pdbutil: LLVMs PDB dumper
• Capstone: Capstone disassembly/disassembler framework.

Acknowledgments

• Microsoft: PDB Repository
• The PDB File Format - LLVM 8 Documentation

Authors

• Marcel Meuter (@x1tan)
• Lorenz Liebler (@kn000x)

License

Binary2Groundtruth is licensed under the MIT license.