I recently try to dowload your free trail of norton antivirus how do i know if is working?

The Anti-Virus or Anti-Malware test file

(read the complete text, it contains important information)

Version of 7 September 2006

If you are active in the anti-virus research field, then you will regularly receive requests for virus samples. Some requests are easy to deal with: they come from fellow-researchers whom you know well, and whom you trust. Using strong encryption, you can send them what they have asked for by almost any medium (including across the Internet) without any real risk.

Other requests come from people you have never heard from before. There are relatively few laws (though some countries do have them) preventing the secure exchange of viruses between consenting individuals, though it is clearly irresponsible for you simply to make viruses available to anyone who asks. Your best response to a request from an unknown person is simply to decline politely.

A third set of requests come from exactly the people you might think would be least likely to want viruses ''users of anti-virus software''.

They want some way of checking that they have deployed their software correctly, or of deliberately generating a ''virus incident in order to test their corporate procedures, or of showing others in the organisation what they would see if they were hit by a virus''.

Obviously, there is considerable intellectual justification for testing anti-virus software against real viruses. If you are an anti-virus vendor, then you do this (or should do it!) before every release of your product, in order to ensure that it really works. However, you do not (or should not!) perform your tests in a ''real'' environment. You use (or should use!) a secure, controlled and independent laboratory environment within which your virus collection is maintained.