You stumble upon a small program called magic_calc. It claims to be a “calculator for secret operations,” but if you enter the wrong number, it refuses to work. Rumor has it that entering the right number unlocks a hidden message. Can you figure out the secret number to retrieve the flag?Click Here To Download... (92 downloads )
Flag Format: BUBT-CTF{***}
Hints:
The program performs a simple arithmetic check.
Reverse the math to compute the correct number.
Tools like Ghidra, IDA Free, or just pen & paper can help.
Enter your flag
Please enter the correct flag below. Make sure there are no extra spaces!
Flags are checked regardless of capitalisation: IWin is the same as iwin.