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Researchers help shut down spam botnet that enslaved 4,000 Linux machines

Researchers help shut down spam botnet that enslaved 4,000 Linux machines

April 11, 2016

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A botnet that enslaved about 4,000 Linux computers and caused them to blast the Internet with spam for more than a year has finally been shut down.

Known as Mumblehard, the botnet was the product of highly skilled developers. It used a custom “packer” to conceal the Perl-based source code that made it run, a backdoor that gave attackers persistent access, and a mail daemon that was able to send large volumes of spam.

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