Security vendor F-Secure says targeted cyberattacks apparently originating in China are now targeting some U.S. defense contractors using malicious PDF files e-mailed to U.S. defense contractors last. The PDF file was designed to look like an official Department of Defense document. (See screenshot of malicious PDF).
Opening the PDF document using Adobe Reader allows hackers to exploit a previously disclosed vulnerability and would allow anyone who controls that IP gain access to the infected computer and the company network.
