Definition of Viruses

Now often used as a general name for any malicious software, the name virus originally stemed directly from biology meaning that it would reproduce copies of itself, possibly altering from the original copy.

Modern day computer virii multiply within a computers memory and spread via removable media and connected services such as wired and wireless networks, email and file sharing.

Not all virii are intended to cause harm. Some are created simply as proof that it can be done, or to gain media attention. However some are very dangerous indeed and have the potential to delete important data, corrupt hard drives and damage hardware. Currently some of the most popular variants include:

• Macro virus - creating using the scripting languages of office software like Microsoft Word or Excel, these virii spread through documents. They rely on the scripting capability of office programs and so are operating system independant, liable to infect Windows, Mac and other operating systems.
• Network virus - Usually spreading via shared network resources, each time a new system is comprimised it will search for new targets and spread to a new system.
• Cross-site scripting virus - also known as a XSSV, these spread using vulnerable web applications and web browsers.

Sophisticated modern virii often combine the above features to create malicious code that is very difficult to deal with. Virii implementing features of worms and other malware have also begun to blur the boundaries between malware varients.

If you would like more information or are experiencing problems with virii or other malware please contact me. I operate a nationwide UK service to remove and protect against the increasing danger of malicious software.