|24 Apr 2011||#1|
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New PDF Exploit Hiding Technique Tricks Antivirus Engines
Researchers from Czech security vendor AVAST warn of a new technique used by PDF exploits to evade antivirus detection. It relies on encoding the malicious code as an image object.
AVAST first encountered this technique in a malicious PDF file a month ago and has seen it used in limited, but also targeted, attacks since then.
"This story began when we found a new, previously unseen, PDF file a month ago. It wasn’t detected by us or by any other AV company," Jiri Sejtko, a senior antivirus analyst at AVAST, writes on the company's blog.
Read more at Softpedia
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