Points: 65 Description:
None.
For this problem, you are given a GIF of the White Rabbit from Alice's Adventures in Wonderland.
GIF stands for Graphics Interchange Format. Every GIF should have a ; as an end-of-file marker. Using a hex editor (such as Bless), you can check whether the last ; of the file really is at the end of the file.
Nope, looks like there is something else at the end. If you work with ZIP files a lot (or do a quick Google search), you might realize that the PK immediately after the ; is part of a ZIP file's signature. Copying the bytes of this ZIP into a new file and extracting it will give you one plaintext file called x.
x appears to contain some sort of ciphertext:
U2FsdGVkX1/seMYknjQGW971EboRgFcx+jfczzdSrWMjt1xwRrPnQBbEsz+Mt7dA4xxsOVB88e8VGl70
The title of this problem is also a hint. A "coney" is another term for a "rabbit," which happens to be the name of a type of stream cipher. The ciphertext produced by this Rabbit cipher also looks similar to the one we found in x. This was the implementation that we used.
Now you need a key. After overthinking this part, we tried rabbit and got the message, which was The key is who_knew_there_is_a_rabbit_cipher.