From the attached document:

"Recently, Etisalat, a carrier in the United Arab Emirates (UAE), sent an SMS message to a number of their customers informing them of a software patch that was available for BlackBerry smartphones and indicating that the software patch would enhance the performance of the BlackBerry service if it was downloaded and installed on the smartphone. Etisalat included a web link in the SMS message urging these customers to download and install the software....