I'll have to take a look at this, but I've found that the top models do quite well at this work without any extra work.

The Windows Remote Desktop client has two bugs that have been driving me crazy for the better part of a decade. One day I got fed up and fed the binary to Claude, asking it to fix the two bugs. And it just did it. Patched one with some NOPs and adjusted a stack offset for the other. Produced a credible explanation for both, and in fact the fix worked. It helps that I was able to describe the bugs clearly, but still, it had to figure out the right spot among megabytes of executable code.