Aaron's engineering blog

So I was playing around with minimalism, and I like to get pretty dirty when this happens. So i started seeing what i could corrupt in an elf header until Linux refused the binary. I found that I could corrupt the twelve bytes directly following the magic sequence. This has some interesting side effects. The first being that all debugging software I attempted to run this in refused to acknowledge that it was even an executable lol. readelf was able to see that there was in fact an elf header, but gave back false information. The GNU file command can see that it is in fact an elf, but doesn't recognize anything other than that, given that most of that information was defaced. The incredibly scary bit is that Linux is able to in fact run this file without any issue lol. ; [madmouse@yourmomsb0x ~]$ nasm -f bin -o test test.s&&chmod +x test&&./test;cat test|xxd ; 0000000: 7f45 4c46 31c0 31db 40cd 8041 4141 4141 .ELF1.1.@..AAAAA ; 0000010: 0200 0300 0100 0000 0480 0...

Why yes, this is in fact a comic made out of code lol. think you can solve the challenge?  Here is the code. Hint: the comic code is a hint, and I gave you every letter of the alphabet ;) Stay tuned for more :D

Ok, so first thing first. You will need a few things done BEFORE you attempt this tutorial: A rooted android device of sorts with debugging enabled and busybox installed An sdcard to store the debian image on A Linux machine (or live cd) to prepare the debian system image ADB for remounting the system partition and pushing startup scripts A terminal application installed on your droid and about an hour of free time Lets get right into it open up a terminal, and make a directory that you will be storing all of the files and things we create for easy cleanup later. I called mine linux_on_android. change to that directory, all instructions from here on out will be relative to whatever directory you are currently residing in after this step. Next, we create an empty raw disk image, make a directory to mount it under, create a filesystem on the image, and mount it under our new mount point. Now lets change into our mnt directory, install debootstrap, and use it to install a base system into...