Modeling and defending against adaptive bittorrent worms in peer-to-peer networks

摘要

In this article, we present a novel P2P worm, called Adaptive BitTorrent worm (A-BT worm), in BT-like networks, which propagates itself by requesting a tracker for vulnerable peers. We believe that such a worm could pose a vital threat to the P2P security for the following reasons: (1) it has the ability to locate most recent active peers; (2) it is easy to be implemented; (3) it can adaptively adjust its speed to reduce its abnormal behavior. By combining the fluid model with the epidemic model, we build a hybrid model to measure the worm damage. We also discuss the possible strategies to detect and contain the worm.