Hello everyone, this time I bring you the world is offensive and misc What-is-this part of the writeup.
First download the attachment is a compressed, decompress. Open and found an unknown file. So normal operation, we binwalk it.
We found that this unknown file is compressed tar package, and then use the command to decompress.
Found two JPG picture, we look at the property, I noticed the same two pictures size, mixed black and white, so we suspect these two pictures of each pixel are complementary. With the image combiner function stegsolve the look.
So we got the flag: AZADITOWER.
