/a/ in need of some dire help

Dear /prog/enitors.

We need your help.

Some idiot script kiddie has written a script that spams /a/ with the same image rotated by 90 degrees.  at the moment it is fucking the mods over because the content is changing therefore they cant ban by ip.

What im asking is for you guys to come up with a way to combat this spam.  Cheers

CAPTCHA's are terribly annoying to type, and it's easy to misread them. I hope moot removes them from the imageboards once he's sure he banned all the infected boxes.