28 Apr 2015
ESET, a global pioneer in proactive protection for more than two decades, has today published its in-depth technical research paper, entitled Unboxing Linux/Mumblehard - Muttering Spam for your Servers. Linux/Mumblehard targets servers running Linux and BSD systems. The primary purpose of this malware is to use infected systems for spamming bots.
ESET researchers say the malware is made up of two different components. Exploiting vulnerabilities in Joomla and Wordpress, the first component is a generic backdoor that requests commands from its Command and Control server. The second component is a full-featured spammer daemon that is launched via a command received by the backdoor. Mumblehard is also distributed via pirated copies of a Linux and BSD program known as DirectMailer, software sold on the Yellsoft website for $240.
ESET reminds web administrators to ensure that web servers operating system and applications are kept up to date with patches as well as running reputatable security software such asESET Server Security
To learn more about the Linux/Mumblehard malware family, download ESETs in-depth technical research paper, entitledUnboxing Linux/Mumblehard - Muttering Spam for your Servers
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