(WEB HOST INDUSTRY REVIEW) — According to reports posted last week on the MessageLabs Intelligence blog, operated by the Symantec (www.symantec.com) unit, the organization’s scanning has seen a rise in malicious attachments accompanying spam email
The post on the MessageLabs blog says that while spam email traffic in general fell dramatically, as expected, following the shutdown of the massive Rustock botnet in March, the company’s spam traps saw a big increase in the volume of spam data hitting its spam traps, in spite of the declining number of emails.
The reason turned out to be an increase in the number of emails with .zip file attachments being sent out by the Cutwail botnet, meaning a big increase in the average size of each email, in terms of data. That volume of spam data has been fairly well sustained since March 26, which suggests a bit of a shift in spamming tactics.
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