As a service, CyberSoft provides a number of free tool downloads and examples available through this support website.
These are example scripts of how to use the VSTK products.
The EICAR anti-virus test file is used for determining if an anti-virus product will sufficiently detect viruses. This test file is not a real virus, it is only used for testing the effectiveness of anti-virus products. For more information on this file, and it's history, see the EICAR web site.