The threats caused by IM worms were analyzed,the solutions in existing applications and studies were analyzed and their strong points were made use of.

Based on the traditional theory of IDS,the system entropy is studied,which come from statistics model,combining the worm behaviors characteristic the exponent entropy conception is put forward,a new inhibiting method is proposed from the anomaly detection point of view.

This paper, based on analysis of distributed abnormal traffic sequence propagation, presents a new algorithm for detecting the Internet worm infection, and explores the forecast mechanism for worm traffic.

Research on worm virus flow in LAN

In light of the characteristics of the LAN in Laiwu Steel Group,based on a brief analysis of the characteristics of worm virus,its spreading approaches and outbreak features,this paper puts forward safeguarding measures against worm virus off enterprise LAN.

An Analysis of Conventional Attacking Schemes by Worms;

Along with the spreading of Internet applications,the threat caused by network worms is increasing.

During leak scanning, worms will bring huge payload and lead to inability of the whole network.

This paper gives the function of Sniffer Pro,the character of the Nachi worm virus and the affection about the computer network.

According to the CAPTCHA IM worms killing technology, improves the IM worm virus immunization strategy, puts forward a Timing model of CAPTCHA, evaluates the reliability of communication networks in different measurement methods, analyzes invulnerability of three IM communication networks using association graph and analytic hierarchy process qualitatively and quantitatively.