Symantec Blogs: Security ResponseSyndicate content

Mat Carter | February 28th, 2007
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As any regular reader of security industrynews will tell you, over the past few years the quality that is mostprized by malicious coders is stealth. Loud, reputation-enhancingattacks are strictly for the teenage malcontents of a previous century.Today’s malicious coders are professionals who prefer a more commercialmodel, which aims to compromise as many machines as possible, asquietly as possible, with the minimum amount of effort—and they areadopting increasingly diversified tactics to this end.

Older malicious code tended to rely on the static hosting of themalicious payload and this was always susceptible to filtering andtargeted action from law enforcement. Consequently a trend developed totry and keep the payload moving and hard to shut off using fast fluxDNS techniques, or to store it on "bullet proof" hosting from providersthat usually ignore complaints. However, the Security Response team hasrecently noticed a simpler approach that can be utilized...