The virus threat is real. Like other problems facing IT professionals, the virus threat should be assessed realistically. You can download the best protection software right now and immediately defend against this threat. Executable file viruses infect program files, on local drives or network drives.
Macro viruses infect the macros within document and spreadsheet files.
However, not all viruses contain a payload. If the virus does contain a payload, there must be a trigger which causes the virus to deliver its payload. The trigger may be a particular system date, the number of re-boots, the number of floppy disks infected or something else which software can be designed to do. In order to implement an effective anti-virus strategy, it is essential to identify the sources of any possible virus infection. You should consider the following.