The first knowledge of malicious Code-Network Worm

The characteristic of this malicious program is to spread through network or system vulnerabilities. A large number of network worms have the characteristics of sending poisonous mail and blocking the network.

Several famous worms:

Specific vulnerability exploited by worm name SlammerMS02-0392003.1.25BlasterMS03-0262003.7.11SasserMS04-0112004.1.01ZotobMS05-0392005.1.14

The difference between viruses and worms:

The network worm can run independently and propagate a full-featured version of itself to another computer. Usually, the worm code or the function of the code can be roughly divided into basic function modules and extended function modules. Basic function module: target search or generation module * module transmission module expansion function module: host resident modular hidden module destroy module communication module control module