Advanced area a of attack and defense world misc Masters_ good_ idea

a_good_idea

Title Description ： Tom has a good idea

Gave one to tom Pictures of the
About the title of the picture
The first step is to guess steganography , Throw it StegSolve Look back and forth inside , No results
The second step is to use 010 Open it and see.
Try searching flag character string

Pull to the end , See three, there are three files
The file should contain
Change the suffix of the picture to zip, decompression

see hint Tips

Try to find the secret of pixels ？
Generally, drag the two pictures to StegSolve Look at the , To no avail
Combine the two pictures ？

Red dot , Pixel contrast dominates , use ps open , Adjust the exposure to the maximum

Scan QR code

NCTF{
    m1sc_1s_very_funny!!!}

summary ：
010 See that the file contains
Change suffix zip The solution file contains
StegSolve xor Combined picture
Black and red pixels ps Adjust the exposure