Targeted Attacks Using Malicious PDF Files

LinuxSecurity.com: Dating back to the end of February, we have been tracking test runs of malicious PDF messages to very specific targets. These PDF files exploit the recent vulnerability CVE-2008-0655.
Ever since the end of March, beginning of April, the amount of samples seen in the wild has significantly increased. Interestingly enough, there is almost no "public, widespread" exploitation. All reports are limited to very specific, targeted attacks. However, due to the wide scope of these attacks, and the number of targets we know of, we feel a diary entry was in order.

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