Botnet that knows your name and quotes your email is back with new tricks

vtqhtr413

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It returned with its trademark activity—a wave of malicious spam messages that appear to come from a known contact, address the recipient by name, and seem to be replying to an existing email thread. A malicious email sent last Tuesday, for instance, attached a Word document that had a massive amount of extraneous data added to the end. As a result, the file was more than 500MB in size, big enough to prevent some security products from being able to scan the contents.