# afl-untracer afl-untracer is an example skeleton file which can easily be used to fuzz a closed source library. It is faster and requires less memory than qemu_mode however it is way more course grained and does not provide interesting features like compcov or cmplog. Read and modify afl-untracer.c then `make` and use it as the afl-fuzz target (or even remote via afl-network-proxy).