Hints for all 300-points tasks

PPC 300: 'trueanswer' is just a cookie.

Stego 300: "Lucy in the Sky with Balls"

Crypto 300: First ciphertext byte is your friend.

Web 300: After deobfuscation you should pay attention to how weirdly PHP compares numeric strings.

Reverse 300: There is no 'LOL executable packer', is there?

Packets 300: Steal flag from server. The one in packet dump is too old.