Find The Secret Flag

Also stuck at this challenge, can’t find a way to pass beyond “Are you sure it’s the right one? …”. I can’t even find a reference on “–hit any key” and that other strange ASCII.

I’m also getting "Are you sure it’s the right one? ". Noticed there is a hidden function but also when I call it from somewhere I don’t get characters printed but hex (which cannot be converted to ascii). Can anyone give me a hint ?

I also can’t find a direct reference to that address and it was not also detected as function.

Anyone have any suggestions for this one? Most seem to be stuck at the same spot and have found a way to either print the “–hit any key” or “are you sure its the right one”. I can’t seem to figure out exactly what’s going on with this. I know you can change the input in a couple ways and redirect to other functions but haven’t come up with anything that produces the flag

I don’t know if this helps, but in the end I wrote a tiny Python script to help me tease the final flag out of the “right one”. The idea for the script came from analyzing the code.

I finally got it!!! I didn’t do it with a Python script though I did edit the asm code to get it done. Could have done the same thing with a script though. I think what tripped me up for so long was that I was trying to create a solution via inputs and at least for my solution I couldn’t find a way. Maybe it’s possible.

This challenge is destroying me… it’s been like 3 days of fail… lol

Anyone willing to PM me on this?? I’m completely lost at this point… found all the pseudo “keys”, IDK what else to do at this point.

Managed to get the flag and the creator but the system doesn’t accept it. Maybe there is something missing or wrong on my inputs.

@zauxzaux said:
Anyone willing to PM me on this?? I’m completely lost at this point… found all the pseudo “keys”, IDK what else to do at this point.

you should be careful, take a hexadecimal value and xor in hex edit (WinHex)

Maybe this might help somebody out, but this challenge can be done neither by changing the assembly nor by using python. It’s all in there.

Spoiler Removed - Arrexel

It is only needs a small patch and a bash script :wink:

I’d argue that there’s no need for patching the binary. Just look at the right spot and maybe write a simple script :slight_smile:

Spoiler Removed - egre55

Spoiler Removed - egre55

I got a key and the message “Are you sure it’s the right one? …”. I don’t know how to continue further. I found the “secret function” but I have no idea with what to call it.

Solved, took a bit but this was a very cool challenge

Solved it too.
But have some questions about the solution.
If anyone feels like it, it would be nice to have a chat about it, feel free to reach me.
Thanks

@trebla said:

I think that I have found the name of the creator but I have weird characters between the two names and at the end of the string.

I got the same problem. Try doing what you are doing but on the whole file.

Hi, I’ve got to the exact same point.

At this moment I am able to decode all the “strings” found inside the asm, but the one with the name of the creator has garbage chars as stated before.

I tried to find other meanings to those “extra” hex codes but without any luck.

I’m pretty sure I’m decoding the correct hex because I was able to get it both by extracting the hex from the asm and both by getting an already decoded string from the asm (with a little patch).

Do you have any suggestion on this?
Thanks!