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Re: Mac 64-bit Shellcode
From: HD Moore <hdm () metasploit com>
Date: Tue, 31 May 2011 19:40:37 -0500
On 5/31/2011 5:11 PM, Ty Miller wrote:
I am currently putting together some Mac 64-bit shellcode but am having
troubles extracting the shellcode on Linux. I can do it fine on Mac
using nasm and otool, which produces the expected small shellcode, but I
want to specifically do it from Linux as a central development location.
I'm developing on BT5. I can compile it as macho64 using nasm. objdump
doesn't recognise the macho64 format. I also used xxd and can see the
small amount of shellcode in amongst heaps of other junk, but I cant see
an easy way to automatically strip the shellcode from the xxd output.
You might try building a generic macho binary that reads a file and
executes in RWX memory, then just use nasm -f bin to build raw shellcode
blobs and send those to your target darwin box, along with your load