GFI Software researchers are warning of a new e-mail campaign that claims to provide information on an Amazon.com shipment.

"All of the links embedded in the email take the user to a site hosting the [BlackHole] exploit kit via a number of site redirections," writes Help Net Security's Zeljka Zorz.

"Once he has landed on that site, the user is automatically served with a PDF file that exploits Adobe Reader vulnerabilities to run malicious executables on the system, including malware that will continue to download other malware on his computer," Zorz writes.

Go to "Amazon users targeted with fake shipping notices" to read the details.

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