[STEGO] Image Processing 101

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  • Team, I have used FFT in Photo**** and can literally see a flag. Typing it in, wrong flag. Can someone please assist?

    OSCP | Sec+ | Veteran
  • Type your comment> @chameleon said:

    Team, I have used FFT in Photo**** and can literally see a flag. Typing it in, wrong flag. Can someone please assist?

    You are focused too much on the flag. Read over all the comments again. And use the right program, only that will let you move forward.

  • Got it in the end :) Thanks all!

    OSCP | Sec+ | Veteran
  • edited December 2019

    Neverm!nd...

  • The hint at the start was all that was neeeded. Also gotta make sure to really make sure you're typing what you're thinking you're typing. I had to stop and review what I was looking at a couple of times. After that it was super simple.

    Ranked #1 in Master of Overthinking 20yrs running uncontested.
    For Help include machine name in message because my mind's everywhere right now.
    Hack The Box
    https://www.hackthebox.eu/home/users/profile/110608

  • @chameleon thx for the hint ;) easy to read in that tool.

  • I already got the image with HTB{} but already input the flag but still cannot :'( can someone help me

  • Type your comment> @CaptainSog said:

    Neverm!nd...

    Thanks dude!

  • Type your comment> @CaptainSog said:

    Neverm!nd...

    I'm laughing way too hard reading this comment after getting the flag.

    Hack The Box

  • edited February 2020

    I used an online tool, uploaded image, selected tranform and it showed the image with flag clearly visible. I am afraid I learned nothing.

    joeblogg801

  • Type your comment> @phneutro said:
    I Already got the flag by all comments hint but hard to read.... and then after try and error i get it!!!!! Hint: Argument

  • CSNCSN
    edited March 2020

    Spoiler Removed

  • My first success on HtB! I scripted some python, and took good notes for the future.

  • Found an online tool. Fiddled around. Not too shabby.

    Hack The Box

  • Found the online tool as well with the FFT hint. This was my first Stego challenge. Curious if someone could point me in the direction of the script everyone else was using to solve this challenge.

    If you get an error with your flag... hint: sometimes...'F's look like 'E's :)

    Arrexel

  • I just used the online tool and almost got the flag but some part is not clearly visible.
    any hint on enhancing that.

  • Someone to check my flag ? I got an error every time i try -_-

  • This was interesting. Easy but also really annoying. My eyes hurt now :neutral:

  • edited April 2020

    Excellent challenge :smile:

  • Type your comment> @snuggles said:

    Not sure if anyone else went the python scripting route, but I just used a single function in a python scipy package. Worked great. Nice, simple challenge.

    I tried download/installing scipy, but I couldn't figure out how to make it work??

  • I used the online tool. Had to squint my eyes and try variations of the flag before I got the correct one.

  • Finally figured it out... Located the flag in the photo but I had a couple typos that I couldn't figure out until I looked a little closer.

    I liked the challenge, pretty good for a beginner.. Going to try more.. i think the biggest challenge for a lot of people is just not knowing where to begin due to not having the proper tool(s). That was me, anyway. I knew what to had to be done, but no idea how to do it lol

  • Type your comment> @Mataya said:

    don't try to extract the flag with a simple tool may need search for many methods of steganography like FFT, in this way you know how to process the image and got the flag.

    this challenges isn't for 20 points :)

    Try Harder!

    Perfect Hint.
    Maybe easy to apply, but not to easy to really understand.

  • Got what looked like the tool using a fairly basic command (once you know where to look).
    Had to roll it a bit to make it more readable.
    However, I'm either making typos, or missing something here.

    FlatMarsSociet

  • No need to dig deeper for this one. just use the right tool and you easily get the flag. Hints are in the comments only.

  • @MONEYSAXENA said:
    No need to dig deeper for this one. just use the right tool and you easily get the flag. Hints are in the comments only.

    feel free to PM me!

  • FFT was a good hint :grin:
    hard to read tho

    0x41

  • I found a flag, but I don't know if I found it at the same time, can anyone check if it is correct?

  • Is some one available just to double check my flag as i have it just can't seem to put it in correctly

    Used the .py
    the website

    Both i can't really see what it says correctly mid flag

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