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Self cleaning malware back in vogue?

by Marianna Schmudlach / June 5, 2008 7:17 AM PDT

5 June 2008

Back in the 1980s and early 1990s self-disinfection was a technique used exclusively by parasitic viruses to avoid detection, however it seems the modern malware writers have rediscovered it.

The sample arrives as a specially crafted Word document about the Chinese earthquake (spammers and malware authors love newsworthy sensational headlines to peddle their wares) which when opened undergoes somewhat of a metamorphosis.

More: http://www.sophos.com/security/blog/2008/06/1444.html

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