Kraken botnet

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The Kraken botnet was the world's largest botnet as of April 2008, according to researchers at computer security company Damballa. The researchers say that Kraken has infected machines in at least 50 of the Fortune 500 companies and has grown to over 400,000 bots.[1] It is estimated to send 9 billion spam messages per day. The Kraken botnet malware may have been designed to evade anti-virus software, and is apparently virtually undetectable to conventional anti-virus software.[2]

Joe Stewart, Director of Malware Research at SecureWorks, claims that Kraken is another name for an existing botnet, Bobax, also known as Bobic, Oderoor, Cotmonger, and Hacktool.Spammer. He claims that it is smaller than "Srizbi", a botnet that controls 315,000 computers. April 9, 2008, Damballa responded to claims that Kraken was just another name for Bobax, comparing and contrasting the two and concluding that they had common authorship.[3] A week later Damballa released instructions for removing the Kraken malware from computers[4] and a list of IPs comprising the Kraken botnet. The list shows that on April 13, 2008, there were 495,000 computers in the Kraken botnet.[5]

See also


  1. Higgins, Kelly Jackson (7 April 2008). "New Massive Botnet Twice the Size of Storm". Dark Reading. Retrieved 7 April 2008. 
  2. Goodin, Dan (7 April 2008). "Move over Storm – there's a bigger, stealthier botnet in town". The Register. Retrieved 7 April 2008. 
  3. Royal, Paul, On the Kraken and Bobax Botnets, 2008-04-09, retrieved 2008-04-09
  4. Damballa, Remediating Hosts Compromised by the Kraken BotArmy, 2008-04-16, retrieved 2008-04-16
  5. Damballa, Kraken Information, 2008-04-16, retrieved 2008-04-16

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