The Cryptolocker Virus and .zip File Attachments
To our valued customers:
Over the past months, a new virus named “Cryptolocker” has been infecting PCs around the globe. This virus is usually spread through malicious .zip file attachments, and encrypts the contents of network file servers, making files un-openable. Due to emerging techniques used to create the virus, antivirus programs do not pick it up. Although ICG has seen a relatively small number of infections in the past, there has been a noticeable increase in its propagation over the past 24 hours.
Therefore, in order to protect our customers, ICG will be blocking all incoming emails that contain a .zip attachment unless otherwise instructed by you. If legit, these emails can be released to the end user by opening a service desk ticket.
If you have any questions or concerns, please email firstname.lastname@example.org.