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BredoLab botnet
The BredoLab Botnet, also known by its alias Oficla,〔(Search the malware encyclopedia: Bredolab ), Microsoft.com〕 was an Armenian botnet mostly involved in viral e-mail spam. Before the botnet was eventually dismantled in November 2010 through the seizure of its command and control servers, it was estimated to consist of millions of zombie computers.
== Operations ==
Though the earliest reports surrounding the BredoLab botnet originate from May 2009 (when the first malware samples of the Bredolab trojan horse were found) the botnet itself did not rise to prominence until August 2009, when there was a major surge in the size of the botnet. Bredonet's main form of propagation was through sending malicious e-mails that included malware attachments which would infect a computer when opened, effectively turning the computer into another zombie controlled by the botnet. At its peak, the botnet was capable of sending 3.6 billion viral emails every day. The other main form of propagation was through the use of drive-by downloads - a method which exploits security vulnerabilities in software. This method allowed the botnet to bypass software protection in order to facilitate downloads without the user being aware of them.
The main income of the botnet was generated through leasing parts of the botnet to third parties who could subsequently use these infected systems for their own purposes, and security researchers estimate that the owner of the botnet made up to $139,000 a month from botnet related activities.〔〔(Bredolab Down but Far from Out After Botnet Takedown ), 28 October 2010〕 Due to the rental business strategy, the payload of Bredolab has been very diverse, and ranged from scareware to malware and e-mail spam.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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