An anonymous reader writes "Last week's revelation of the existence of Linux/Cdorked.A, a highly advanced and stealthy Apache backdoor used to drive traffic from legitimate compromised sites to malicious websites carrying Blackhole exploit packs, was only the beginning — ESET's continuing investigation has now revealed that the backdoor also infects sites running the nginx and Lighttpd webservers. Researchers have, so far, detected more than 400 webservers infected with the backdoor, and 50 of them are among the world's most popular and visited websites." Here's the researchers' original report.
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