Printing taint tracked instructions

[r00tus3r]

Hi,

I tried to print the instructions using taint tracked data by uncommenting the following code: https://github.com/AngoraFuzzer/libdft64/blob/master/src/libdft_api.cpp#L302

But it seems to print all the instructions which are executed after tainted = true set in here: https://github.com/AngoraFuzzer/libdft64/blob/master/src/syscall_hook.cpp#L19

Is there another way to print the taint tracked instructions?

[spinpx]

It looks like there is no existed way to find tainted instructions. You may need to mark them respectively by yourself.

[r00tus3r]

Alright, do you have any suggestions on what might be a good way to do that?

[spinpx]

Sorry that I am not able to offer any good advice since the rules for taint propagation is too trivial. e.g for binary ops, you may add hook for tag_combine to detect if it is tainted or not, but it does not works on mov instructions.