EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Aug 7·5 min read
Psychological Warfare in Reverse Engineering
TL;DR
REpsych is a proof-of-concept toolset that generates images from a program's control flow graph (CFG), demonstrating a novel approach to reverse engineering. While primarily a showcase, it has potential applications discussed in a DEF CON presentation.
✦ Why It Matters
Explore REpsych to enhance your reverse engineering toolkit and experiment with CFG visualizations.
Key Takeaways
- Use small images (max 100x100 pixels) for best results.
- Convert text images to 2 BPP before using REpsych.
- Adjust CFG viewer settings to accommodate more nodes.
- Explore potential applications of CFG visualization in your work.
How It Works
REpsych generates images by mapping each pixel of a bitmap to a basic block in a program's control flow graph (CFG). The tool translates the image into an executable program, ensuring that the CFG accurately represents the original image.
Users save their images in a specific format and run a command to create the corresponding program, which can then be visualized using CFG viewers.