Decentralized Publish-Subscribe System to Prevent Coordinated Attacks via Alert Correlation

We present in this paper a decentralized architecture to correlate alerts between cooperative nodes in a secure multicast infrastructure. The purpose of this architecture is to detect and prevent the use of network resources to perform coordinated attacks against third party networks. By means of a cooperative scheme based on message passing, the different nodes of this system will collaborate to detect its participation on a coordinated attack and will react to avoid it. An overview of the implementation of this architecture for GNU/Linux systems will demonstrate the practicability of the system.