You know them by name:  Ghost, Heartbleed, ShellShock, ImageTragick, StageFright. Vulnerabilities so big that even your boss is worried about them. Most of us are likely passingly familiar with these big-name vulnerabilities and how they work.

But have you ever actually seen exploits for these vulnerabilities? Do you know what they look like as they traverse our networks? Could you detect such an attack?
For those that think they could detect such an attack, could you block all the various forms an exploit could take?

Welcome to Defend the Castle – a contest for BlueTeamers

Contestants create their own signatures for network-based attacks against some of the most well-known, publicly-documented vulnerabilities (or exploit kits) of the recent past.

Contestant signatures will be tested against increasingly difficult-to-properly-detect attack traffic (exploit list below). But there’s a catch: You can’t be too aggressive—you’ll get penalized for blocking legitimate traffic (just like in the real world).

Be sure to pre-register for Defend the Castle to reserve your spot and make the most of it! Just use the Registration button to your right and fill in the details.