Deceitful Batman Challenge

I always seem to get stuck on the "easy" challenges. I cant seem to get started on this one!! I've tried converting it to different ciphers. Any help, greatly appreciated!

andrewh

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Comments

  • This is a common cipher, hard to give a hind without spoiling it. Two characters. If that doesn't ring a bell PM me :)

  • Just found this page which is a really good resource at identifying unknown ciphers:

    http://practicalcryptography.com/cryptanalysis/text-characterisation/identifying-unknown-ciphers/

  • I'm so annoyed with this. I'm pretty sure I've successfully decrypted it... but the plain text I get doesn't work. After googling how it relates to batman I have also found a few things, but nothing I enter seems to do the trick. Any insight?

  • Lowercase ?

    HKLM

  • dotan3 provided more than enough for this challenge.

  • Yup, the link dotan3 pasted helped me with solving this. Thanks :)

  • Thanks @dotan3 , i don't only solve but also learned alot. Answering with reading documents is good to learn

  • Yes! It's quite difficult to help without giving the flag away. So the best way is to point to some good general resource and let the hacker grow ;)

    Glad you made it like this!

  • yap thanks dotan3

  • Hi,

    I'm having a major problem with this challenge. Any further hints?

  • I will just leave it for now. Based on the link from @dotan3 I deciphered it but I can not submit the flag. Its literally telling me what the flag is but the site does not accept any variation. Maybe later I will understand why this was.

  • look at the input field.

    "Flag format: HTB{s0m3_t3xt}"

    I got confused there too, but yeah you should be able to figure it out now.

  • Thanks @haggy, I was not precise enough with that.

  • @bergabman said:
    I will just leave it for now. Based on the link from @dotan3 I deciphered it but I can not submit the flag. Its literally telling me what the flag is but the site does not accept any variation. Maybe later I will understand why this was.

    I have the same problem
    thanks @dotan3 for the link

  • Ok made it
  • Seem to be having the same problem here, Won't let me submit the flag and ive tried every way i can now -.-

  • Nevermind, I was going full retard, which no one should ever do!

  • Does somebody have the article or know of an equivalent @dotan3 gave? I tried to go there but the site seems down and it seems like a great thing to read...

  • Nevermind, solved it. Found this thanks to the hints: https://www.huntakillerwiththebau.com/cyphers2/

  • @L04D3R said:
    Does somebody have the article or know of an equivalent @dotan3 gave? I tried to go there but the site seems down and it seems like a great thing to read...

    archive.org does. I came back for this the link because of another challenge.

    https://web.archive.org/web/20171107001519/http://practicalcryptography.com/cryptanalysis/text-characterisation/identifying-unknown-ciphers/

  • edited June 2018

    @haggy said:
    look at the input field.

    "Flag format: HTB{s0m3_t3xt}"

    I got confused there too, but yeah you should be able to figure it out now.

    Underscore - noted.
    Flag format is in lowercase but the description says that "(The flag is in uppercase)". So, what is the correct case?

    I also tried to submit many variations of relevant words from Wikipedia but none of them worked so far. Am I supposed to try many variations for this challenge?

    I tried to submit the following words in uppercase separated with '_' (I only write the first letter and length for each word so not to spoil):
    A4_N6
    N6_A4
    A4_W7_N6
    A4_W7_N6_C9
    A6_B6
    B6_A6
    A6_P10
    A6_T8_C5_P10
    ... and many other

    Update: I found that there is an ambiguity. I also tried word combinations with J5 but none of them worked as well.

  • I don get it. I got the text but can`t submit the flag...

    Would someone please tell me how to submit the text. I tryed it with HTB{TEXT} but it dose not work...

    The description is saying in uppercase, so i did it. I tryed to split the words with a "_" but it dose not work.

    Or am I wrong and the text is not the flag?

  • @arres said:
    I don get it. I got the text but can`t submit the flag...

    Would someone please tell me how to submit the text. I tryed it with HTB{TEXT} but it dose not work...

    The description is saying in uppercase, so i did it. I tryed to split the words with a "_" but it dose not work.

    Or am I wrong and the text is not the flag?

    It seems that you need to start googling from what you have in the flag, but as I previously wrote, I wasn't able to submit flag myself so far

  • Pm me if you want. I solved this a few days ago and didn't have any issues submitting the flag. Only change needed was the case as mentioned in challenge description
  • Thank you AgentTrio, I was blind^^

  • @nns2009 said:
    It seems that you need to start googling from what you have in the flag, but as I previously wrote, I wasn't able to submit flag myself so far

    Ignore my message. One of the flags I submitted turned out to be the correct one even though I always got "Incorrect flag" message. After page refresh challenge is marked as completed. Might be a system bug.

  • > @arres said:
    > Thank you AgentTrio, I was blind^^

    Don't worry about it. You were one of a few that were over complicating things.
  • wow, @dotan3 thank you for your help, i would have never known and never completed this

  • I got the flag but I cant manage to submit it what am I doing wrong!!!!!

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