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cybercamp -Stego

3 min readJun 24, 2024

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Hello everyone, please note that there is more than one solution, but I will explain the simplest one

first challnge
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soo for any steganography or Forensics challnge i love to put like recon to solve it

strings the image

steghide

zsteg

binwalk

exiftoll

check signatures

There are a lot of tools that help to do this or you can do it manually which is better

I tried and found something interesting

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its not clear for me so i use this tool

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It will be clearer. Anyway, it is clear that it is a passwd , but what can we do with it?

tentenecio

In this case we only have the image so it will be the passwd for steghide

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The second challenge

In this challenge we just have 1 image and its .bmp so we can’t do a lot

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soo i try strings and i find something

I tried to check again by looking at the Hex dump

soo now it’s time for use binwalk

sudo binwalk — dd “.*” — run-as=root Cabeza.bmp

we will find 2 file

the flag and image

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Unfortunately, the file is password protected

At this moment, I was overthinking and go to brute force the passwd by fcrackzip

I completely forgot there was a picture

Anyway it took time so I came back to and see what we have

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from exiftool I found this to be a recurring message and its mean

Coach of both competitions?

soo now its like osint

vicente del bosque

just remove the space vicentedelbosque

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the last challnge its just audio and its was speaking backwards just by listening. Then you can use Audacity to revert the end -> md5 and that’s the flag

Plus, there’s the hint DELREVES in the metadata that means backwards

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