Researchers have spotted at least six different email types spreading a new variant of Locky, including fake invoice updates, voice mail notifications, Amazon Marketplace messages, and more.
The sudden influx of new Ykcol (Locky spelled backwards) samples is forcing AV vendors to update their protection. Many are having trouble keeping up.
Barracuda researchers have noted some of the campaigns are assigning every victim the same identification number, meaning the attackers won't be able to tell them apart, making decryption impossible.
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