Description
You’ve just run across an old program, seemingly innocent at first. It asks for a password, and if you enter it correctly, you might think you've won. But there's more lurking beneath the surface. Something about this challenge doesn’t add up.
The program not only demands the correct password, but also a secret code—one that isn’t easily discovered. Is it hidden within the code? Or perhaps something you’ll have to figure out for yourself?
Resources
If it's your first reverse challenge, this website should be helpful https://dogbolt.org/ this website tries to decompile the program for you. Other popular tool is ghidra https://ghidra-sre.org/
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donquixote on 4:33 PM 01/21/2025: as a basic learner,
this was good.
flag -- CTFlearn{W4s_1T_Th4T_H4rd?}
pass -- Sup3rS3cr3tP455W0rd
code -- 1337
you can also find the pass using strings command
curiocunngios on 9:41 AM 01/27/2025: tick
Cappybara on 2:04 PM 01/31/2025: Thx I'm glad you enjoyed it, wanted to upload it on CTFlearn but the site is dead i guess.
basmannetjeee on 12:14 AM 02/04/2025: From a complete beginner's standpoint: I found the password and code but am *completely* stuck on how to find the flag. Any guidance? P.S great quality, really makes this a lot more doable
basmannetjeee on 12:30 AM 02/04/2025: Nvm - did it!
Casually left out 2/3 of the flag lmfao
kaali on 5:25 PM 02/09/2025: good one
false_promise on 3:51 PM 02/13/2025: Its my first challenge ind i can find the flag =)
tnx for creating this challenge
Veazamir on 4:10 AM 02/23/2025: Thank you for the challenge, I very much enjoyed it. I had a blast trying to understand how the flag was made - XOR and pointer arithmetic behind the flag array.
c1nnamon on 12:00 AM 02/24/2025: Cracking without a secret code:
strings babyrev | grep S
Sup3rS3cr3tP455W0rd rizin -A babyrev
[0x00001100] pdf @ main | grep "0x1270"
│ ┌─ wa "jne 0x1270"
./babyrev
Welcome to baby rev challenge
Input the password:
Sup3rS3cr3tP455W0rd
Input the secret code now:
i love cappybaras
Correct!
Here is your flag
CTFlearn{W4s_1T_Th4T_H4rd?}⏎
omshingare on 8:34 PM 02/26/2025: Good, as ima beginner in rev eng. This was good, I love to solve such, maybe after this i'll be solving some great questions.
schoolwucks on 7:28 PM 04/26/2025: awesome crackme for beginners
kx05 on 8:16 AM 04/27/2025: straightforward...one look in Ghidra and you can solve it. Great challenge for beginners like me!
Kileris on 4:01 AM 05/20/2025: How do I even run it because in aint a exe file
4lmutairi1337 on 12:49 AM 06/06/2025: Great chall
au66y on 2:32 PM 06/09/2025: This challenge definitely build my confidence, Kudos to the Author!
rafok2v9c on 7:24 PM 06/15/2025: else if (!strcmp(&v3, "Passwordishere\n"))
{
puts("Correct!\nHere is your flag\n");
for (v2 = 0; v2
zydiag on 6:09 AM 06/19/2025: CTFlearn{W4s_1T_Th4T_H4rd?}
I just looked the code on ghidra and found it
Am I supposed to do it in other ways?
or just crack it however you can