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Old 07-27-2012   #1
sandungas
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Naehrwert reversing challenge (a hidden unicorn)

Source: IRC efnet #ps3dev channel (few hours ago)
Code:
<naehrwert> reversing challenge: http://www.sendspace.com/file/asd7fp
<naehrwert> anyone who succeeds to unpack this, get's some unicorn rainbow poop!
<antikhris> unpack the elf?
<naehrwert> nah the hidden payload ;)
<sandungas> unicorns \o/
<antikhris> ah santa wont b much help then
<antikhris> whats it for anyway?
<sandungas> hidden where ? o0
<naehrwert> custom spu elf protector
<naehrwert> need to see if it's a good one or not haha
https://twitter.com/naehrwert
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Old 07-27-2012   #2
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Whoa! Exciting
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Old 07-27-2012   #3
Gonzakpo
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The question is: Why does Naehrwert needs to protect an elf from being reversed? They must be up to something!

Don't get me wrong, I'm not saying this in a negative way. I'm just saying aloud that I would love to know what are they doing! Maybe they want to protect an exploit from being reversed by Sony?
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Old 07-27-2012   #4
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@Gonzakpo either that (that he wants to protect something from Sony) or he's just laming around :D
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Old 07-27-2012   #5
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I wantz Thats Poop O.o
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Old 07-27-2012   #6
TizzyT
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lol still with the UNICORNS? lol
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Old 07-27-2012   #7
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I'm curious now. I'm going to take a look .
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Old 07-28-2012   #8
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Any news about this?

I've tried to take a look at it but it's a bit too much for me. I know assembly and all, but I really don't know how to use IDA properly. Does anyone have a tutorial or a good book on how to reverse assembly using IDA? I've installed xorloser and kakarotoks plugins for reversing elfs. Then took a look at it. Saw a little program with a huge table. And that's all haha. When they talk about the "payload" what are they refering to exactly? I don't get the concept of a payload. If I disassembly the program, isn't that the payload?

This is why I like hardware. :P
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Old 08-08-2012   #9
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Anyone found any unicorns yet? I wish I had even the first clue about what to do with this....
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Old 08-08-2012   #10
advocatusdiaboli
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Originally Posted by DEFAULTDNB View Post
Anyone found any unicorns yet? I wish I had even the first clue about what to do with this....
First clue( pseudo code )
Code:
cd /tmp
curl -O "http://www.sendspace.com/file/asd7fp"
disasm --userland CELL asd7fp > asd7fp.s
I believe it takes a couple of the last line and with some heavy reading inbetween each time.
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