When storms occur in movies, lights fluctuate.
crypto.txtarrow-up-right
Looking at the crypto.txt file, we see only 2 characters: Y and K. This is a morse code.
morse code
Using cyberchefarrow-up-right, and replacing Y with 0 and K with 1, converting from binary, we get the flag
0
1
CyberChef recipearrow-up-right
xCTF{z3r0_0n3_z3r0_0n3}
Last updated 2 years ago