A virus is a programming code (executable) that replicates by being copied or initiating its copying to another program, computer boot sector or document. Viruses can be transmitted as attachments to an e-mail note or in a downloaded file, or be present on a diskette or CD.
Anti Virus applications are intended to give you the peace of mind that no malicious code can ever enter your PC. But, how does the program let you install a office application, but prevent a virus from copying itself to your hard drive?
In a nutshell - an antivirus program is no more than a system for analyzing information and then, if it finds that something is infected, it disinfects it... However the mere principle of its operation requires the following process:
The above is a simplistic view of how Virus are treated and how 90% of PC users protect themselves from PC viruses.
The speed at which viruses can propagate must be a concern for all Administrators. Most sites now have automatic updates running which frequently update their scanners, sometimes as frequently as twice daily. However it takes time after a virus is released, to first be detected and identified and then to be added to the virus definitions of all the major virus scanners before the site administrator even gets their hand on it.
On Windows platforms, nine out of ten of top viruses are spread via e-mail or imported via the Internet. While staff training is the best deterrent, wouldn’t it be helpful to prevent users opening unauthorized executables; yet being non-restrictive on opening documents and other less harmful 
files?
We believe that the traditional Anti-virus applications are "reactionary" and that it is not a question of "if you will get a computer virus" - but rather "When" it will occur.
With typical figures saying 80% of network related attacks come from within organisations - doesn't it make sense to prevent users running port scanners, keyloggers or other executable tools from USB or CDROM drives - yet still enable these drives to transfer files and maintain task efficiencies.
Have you ever caught users attempting to install software on your PC(s)? If any of these issues are of a concern, you need Executable Lockdown.
Executable Lockdown delivers "proactive" protection against viruses, adware, unauthorized software installation and more... With its real-time filtering technology, Executable Lockdown dramatically reduces the costs and complexity associated with the maintenance and security of PC's.
