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HellBound Hackers | Challenges | Stegano

Author

Steg 24,25,26,27

synstealth
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Posted on 01-10-13 20:54
I notice there is no article or threads on those stegnography. I have been banging my head on those level trying to find at least a clue or a hint. I need some pointers on what to do with those levels.


I saw the thread about steg 25, but it doesnt really say how it was done.

know where to Look
Author

RE: Steg 24,25,26,27

synstealth
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Posted on 01-10-13 22:13
It seems that the only approach you can do with stenography:

use photoshop to manipulate the colors on how it is viewed
no luck.. I am starting to think about crossing out photoshop since it gave me no leads

use hex editor tool to view the contents of the image - or olly to crack how the info is embedded in the image file - this is a possiblity so Im digging more deeper with olly once I am on a PC

the last thing I am working on for steg 22 is the jpg headers but this steg 25-27 uses png so I cross out the headers part..

any pointers or hints would be helpful for me to continue trying.
know where to Look
Author

RE: Steg 24,25,26,27

Mordak
Evil Sorcerer



Posts: 571
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Posted on 01-10-13 23:16
The help bot needs updating i will add it to the list. Rex or Euf should be able to help Smile




Edited by Mordak on 01-10-13 23:17
http://developers.hellboundhackers.org
Author

RE: Steg 24,25,26,27

rex_mundi
☆ Lucifer ☆



Posts: 1458
Location: Scotland
Joined: 20.02.08
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God
Posted on 02-10-13 00:25
Stego 24 I used a hex editor, you only need to change a few chars to solve it, the password is right there, you just need to alter one aspect of the image in the header to be able to see it.

As for the others, you'll need to code something to find the data you need.
U N Ⓡⓔⓧ_Ⓜⓤⓝⓓⓘ
Author

RE: Steg 24,25,26,27

jmort47
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Posted on 02-10-13 04:09
I have to code something for 25? ;lsakdjflsak. I thought I was making progress.


timewastingclub.org
Author

RE: Steg 24,25,26,27

Euforia33
philalethes



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Posted on 02-10-13 04:41
Grin

Ok, Steg 25: An Image editor will help you find the first clue, then a bit of logical thinking will help you with the rest.

Steg 26: Better to code something to read this one, there is something that is obvious about this picture yet you do not see. Think of what you would normally see in an image and you may notice that is not there... But why...?

Steg 27: I'm evil Pfft, I'll leave off commenting on this one for the time being, It's not meant to be easy and will test your knowledge and ability to think outside the box using not just one technique but multiple techniques...

Hope this helps any.

Euf.
Author

RE: Steg 24,25,26,27

synstealth
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Posted on 02-10-13 15:14
Steg 26: Better to code something to read this one, there is something that is obvious about this picture yet you do not see. Think of what you would normally see in an image and you may notice that is not there... But why...?



I am thinking of the 3D image that you must focus your eyes to be able to see the image? probably not for this one?


damn... Im still on the steg25. I found what I needed to see but its coded and need to decrypt it.. somehow...




Edited by synstealth on 02-10-13 15:16
know where to Look
Author

RE: Steg 24,25,26,27

rex_mundi
☆ Lucifer ☆



Posts: 1458
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Posted on 02-10-13 20:33
Ah I just noticed the above info I gave you for stego 24 is actually for stego 22.

Stego 24 you just gotta look real close at the image and you'll see what you need.
U N Ⓡⓔⓧ_Ⓜⓤⓝⓓⓘ
Author

RE: Steg 24,25,26,27

Euforia33
philalethes



Posts: 867
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Posted on 02-10-13 22:28
synstealth wrote:

damn... Im still on the steg25. I found what I needed to see but its coded and need to decrypt it.. somehow...



Depending on which stage you are at, it's quite common. If you're referring to the "blocks" then remember this: Left to right, top to bottom. Count the possible combinations and think of how that number will help you.

Edit: There are visual clues on both steg 25 and steg 26, with steg 25 it is more obvious but with steg 26, you may not notice it right away. Try "reading" the image and you will notice something that seems different from most other images.

Edited by Euforia33 on 02-10-13 22:40