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Once-prolific Pushdo botnet crippled Print E-mail
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Source: The Register UK - Posted by Anthony Pell   
Latest News Security researchers have disrupted the botnet known as Pushdo, a coup that over the past 48 hours has almost completely choked the torrent of junkmail from the once-prolific spam network. Researchers from the security inteligence firm LastLine said that they identified a total of 30 servers used as Pushdo command and control channels and managed to get the plug pulled on 20 of them. As a result, the torrent of junkmail spewing from it dropped to almost zero on Thursday, according to figures from M86 Security Labs.

Also known as Cutwail, Pushdo has long maintained a strong presence in the rogues gallery of the security world. It is known for spam that attempts to trick recipients into installing malware and it also excels at hiding itself from intrusion-prevention systems, security researches have said. Its output has varied over the years with estimates as high as 20 percent of the world's spam at some points.

Read this full article at The Register UK

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