A link to a new type of attack from A Souare. Botnets – the dark side of the Internet. Say this and much more.
If your PC seems to have developed a mind of its own, and your Internet connection is often overloaded for no apparent reason, then you have probably caught a special type of Trojan. Inventive Malware programmers often control hundreds, and sometimes thousands, of computers with their software pests. These are known as Botnets and this article explains what exactly these are, what risks they present, and how you can protect yourself from them.
http://www.emsisoft.com/en/kb/articles/tec070503