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IBM researcher: Hackers camouflage 100 per cent of Web attacks
- — 13 February, 2008 08:15
Hackers now mask virtually every Web browser exploit as part of their normal procedure to evade detection by security software, said IBM's X-Force research team Tuesday.
By the end of last year, according to Kris Lamb, director of IBM Internet Security Systems' X-Force, nearly 100 per cent of all Web exploits were either self-encrypted or relied on obfuscation techniques to make it difficult for standard intrusion detection and intrusion prevention technologies to identify the attack code.
"In 2006, we saw about 50 per cent of Web exploits obfuscated or encoded," said Lamb, adding that, on average, 80 per cent were camouflaged throughout 2007. "But that jumped to almost 100 per cent by the end of the year."
The reason for the cover-up boost is straightforward, said Lamb. "They're not dumb. They only do what they're forced to do," he explained. "For them to continue to get a high rate of return, they had to understand the protection technologies that were being used. And [security] vendors were doing a pretty good job.
The masking and encryption, however, is just one facet of the ongoing trend toward attacks aimed first and foremost at browsers, said Lamb. "Whether through drive-by downloads or compromising legitimate sites, or a combination of advanced, targeted phishing, the browser is involved in some way," he said. "It's the main frontier of exploit right now.
"We used to call the operating system the 'keys of the castle,' but as exploits moved up the application stack and as the browser became the new OS, it's now the keys to castle," he added.