Load a statically-linked ELF binary(x86 architecture) without the execve syscall.
Build & pack using make:
After compiling, you can use the ./bin/loader binary to run the dummy programs in bin/samples/tests/*.packed.
The loader will unpack the elf in memory, map the segments to the right places in virtual memory, resolve symbols and pass execution to the unpacked program's main().
sample 1 (loops, calculations and I/O):
sample 2 (system commands):
There are more sample programs in the tests directory.
This is not a shiny tool but rather a tiny PoC code that will (hopefully) help beginners who are trying to learn more about the concept of packers. The loader is compiled with debug info so you can fire-up gdb and step through the C code to see how the magic is done.
It is also a great introduction if you're a researcher who's trying to learn about how the linux kernel loads an elf (which is far more complicated in reality)