There is a new manifestation of the UPS / Fedex / DHL Virus.
This is being generated before any virus definitions are able to catch it.
The Virus is being created for each individual email that is sent, and is slightly different than any previous versions, and hence no Virus Definitions will recognize it.
Please be extra vigilant if you receive an email with a .zip attachment, especially if the subject is containing UPS / Fedex / DHL.
Our NetSense StreamFilter/Hosted Exchange customers should now be fully protected as yesterday we enabled the platforms to remove the virus by inspecting its contents for the known 9 files within.