Metamorphic is a technique to obfuscate a binary and change the opcode sequence and create new samples with same functionality. In my case, I have some elf binary of ARM processor type and their source code is not accessible. Is there any way to obfuscate them and create new samples with same functionality?
Is there any ready solution for metamorphing ARM, I don't think so. Is there a way to do metamorphing? Yes, but this should be done during the compilation phase with tools like llvm. It must be done during the compilation, in order to have the full context of what is done by each instruction, and in order to make a really good metamorphing, not some stupid instruction replacement.