HCSC 2024 - Esoteric Hell

Description

Kiugró üdvözlet a mélyből!

Csak a zip file letöltése szükséges!

A flag formátuma: HCSC24{...}

Hint 1 (cost 175): Született: 1998. Nem BOB, Ben!
Brainfuck trónfosztás

Metadata

• Tags: esolang, malbolge
• Points: 350
• Number of solvers: 61
• Filename: esoteric_hell.txt

Solution

We have a message written in some esolang:

D'``@]![~5{z81gfu@P10p(^]I$Hj!W2|{AcQ`|;)9rqpunm3qpoQPlkd*KJ`edc\[!_X]
VUZSwWVUTMRQJIm0/Ei,BGF?cC<;@?8\654921U54t,+0/.'K+k)('~%${A@aw|{
zs9wYutslqpi/gfkd*Kafed]\"ZY^]VzTSRWPtT6RKo2NGFEJIBfF?DC<;:?8\<;43Wx654-
Q10/o-&J$#(!Efe#zyx>|uzyxwp6tslkj0ng-ejchgfe^]#aC_X|\[T<
RQVOsM5KoOHMFjJIHG)?cCBA@">76Z{z810/S-,+0/('&Jkj(!Ef$#"!x>_{
zyr8YXn4rqpongOe+iha`_^$E[!BA]VzZYR:ut76LpPO10FEJCgGFE>&<`@9!=<5Y3y705.-
Q10/.'&J*j('~}${Ay~w=^]sxqpun4Ukpi/gfkdchgf_%c\aZY^W{[ZYX:
Pt7SRQPOHGkKDIBAFE>bB$@?>=<5Y3y705.-Q1*/.-,%I)(!g%${A!~}vu;
yxqYutm3qpongOe+ihgfH%c\D`_^]VzT<RQVOsM5KJONGkKD,HAe?'=<;:9]~<5Y92x65.
RQ1qp('&Jk)"!&}C#zb~wv{t:[qpotsrk1Rhgfkd*hg`Hd]#a`BXWVzZ<;
WVUTMqQP2NGFEiC+AFEDC<;_?>=<5{3W76543,+O)o'&J$j('&}C#"!~}vu;\
xqpo5slk1onmfN+Lhg`&^]\a`Y}]?>ZSwvc

If we search for the first few characters on Google (esolang D'@]![~5{), the first image is the solution:

The solution is the Malbolge: The Esoteric Programming Language from Hell esolang, the challenge name is also a hint:

The language is named after Malebolge [sic], the eighth level of hell in Dante’s Inferno, which is reserved for perpetrators of fraud. The actual spelling Malbolge is also used for the sixth hell in the Dungeons and Dragons roleplaying game.

We just need to find an interpreter for it for example: https://malbolge.doleczek.pl/. It gives the following output:

Your FLAG:

HCSC24{Dante's_Inferno_8th_circle}

Flag: HCSC24{Dante’s_Inferno_8th_circle}