Kaspersky Lab researcher Marta Janus blogged about an interesting new code obfuscation technique that she discovered while analyzing a Polish e-commerce Web site that had been compromised. The technique, it turns out, was first demonstrated at DEFCON 16 in 2008. Janus says she s not convinced the presentation was the source used by the Polish hackers. Code obfuscation has become a mainstay of modern malware as malware authors look for novel ways to prevent researchers and security products from detecting their wares.
Source: https://threatpost.com/hackers-pinch-obfuscation-technique-defcon-presentation-060911/75322/