Abstract:

Botnet was evolving continuously in recent years and has become an highly profitable underground black industry. In this paper, the main challenges faced by the botnet herder were discussed, as well as the methods they may employ to overcome these challenges. Some possible ways that can improve the botnet capabilities were introduced, including: the layered and extensible method to construct a botnet, metasploit-based quick attack method, P2P botnet employing gnutella and skype, and signature-based authentication, the hidden communication channel techniques can be used to make more reliable and extensible botnet, which made it more difficult to be cleared.

Key words: botnet, network security, attack, trends