Hi!
I've recently been toying with methods for copy-protection and other
esoteric subjects, for academic and hobby purposes, and I haven't found
much info on this subject.
I want to see if it's possible (from userspace) to load and execute an
ELF-binary based on a memory-buffer, i.e. load, relocate, etcetera (then
execute) a program that's stored in memory.
I can't find any readily available options, I've toyed a bit with shmem
(to get an fd) and fexecve, but haven't gotten far. I've briefly looked
at the execve-code in the kernel.
So I'm curious; does anyone have any experience or suggestions on this
subject? Is it at all possible to do the operations via usermode? I've
toyed with creating copy-protection-schemes and binary packers and such
under Win32, where it's possible, but I have no experience on the
subject under Linux (or found any documentation on anyone else doing so).
Any papers, links, source-file-references etcetera would be appreciated. :-)
--
Kindest regards / Med vennlig hilsen,
Jørgen P. Tjernø
<jorgen@xxxxxxxxxx>
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