Article: Multi-defense-resistant spam.(Security News and Products)

Over the past few months, Network Box Security Response has been closely monitoring, and responding to, the emergence of a new type of spam email They have named this "MDR Spam" (multi-defense-resistant spam). While, at first glance, all samples of such messages look identical, an in-depth technical analysis of 1,204 samples of this spam, arriving at a single Network Box, showed they came from 600 unique senders (in 41 different countries), with 599 digitally different copies of the GIF image (all of which "appeared" to be the same). Without a sender, source ip, message structure, or unique digital fingerprint to lock-on to, it is very difficult to detect and ...

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