Hello there, welcome to my blog. I’ll begin with some useless welcome post, like most blogs do đŸ™‚ and make it worse with an incredibly nerdy thing to do:
31 db 43 68 21 0a 00 00
68 6f 72 6c 64 68 6f 2c
20 77 68 48 65 6c 6c 89
e1 6a 0e 5a 6a 04 58 cd
80 31 db 31 c0 40 cd 80
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Nope, it’s not a Cthulhu chant in some strange and ancient Unicode encoding. I admit it might have been though – we all know Unicode is evil.
No… It’s nothing but a… green-and-black Matrix themed “Hello World” Linux shellcode! đŸ˜€
Breaking Code 
Great!
You can put any byte instead of the 0x00 and then have a null-less hello-world
Comment by Openbsdguy — December 14, 2008 @ 2:14 am
True! It can additionally be made one byte smaller:
31 db 43 66 68 21 0a68 6f 72 6c 64 68 6f 2c
20 77 68 48 65 6c 6c 89
e1 6a 0e 5a 6a 04 58 cd
80 31 db 31 c0 40 cd 80
Comment by Mario Vilas — December 14, 2008 @ 6:16 pm