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Microsoft disables 41,000-strong Kelihos botnet

Microsoft disables 41,000-strong Kelihos botnet
  • Posted September 27, 2011, 7:08 PM by Matthew DeCarlo | Filed in The Web, IT Security
  • Microsoft added another notch to its belt today following the demise of a 41,000-strong botnet. Called Kelihos or Waledac 2.0, the zombie network was capable of sending 3.8 billion spam emails per day. While it isn't the biggest fish Microsoft has…

Microsoft offers $250,000 bounty for Rustock operators

Microsoft offers $250,000 bounty for Rustock operators
  • Posted July 18, 2011, 3:36 PM by Matthew DeCarlo | Filed in IT Security, Industry News
  • Microsoft may have incapacitated the notorious Rustock botnet this year, but the company is still hunting those who were running the show. In March, Redmond paired up with federal law enforcement agents to seize computer equipment from US Internet hosting…

Global spam rate falls by 33.6% after Rustock's demise

Global spam rate falls by 33.6% after Rustock
  • Posted March 29, 2011, 5:50 PM by Matthew DeCarlo | Filed in IT Security, The Web
  • Spam levels have decreased by 33.6% only two weeks after Microsoft tackled the Rustock botnet according a Symantec MessageLabs Intelligence report (PDF). It's estimated that 83.1% of all global spam was sent from botnets in March and prior to its…

Rustock botnet responsible for 41% of all spam

  • Posted August 25, 2010, 7:18 PM by Matthew DeCarlo | Filed in The Web, IT Security
  • Botnets are now responsible for 95% of all spam, up from 84% in April, and nearly half of it comes from only one botnet according to Symantec. A whopping 41% of the Internet's spam is attributed to Rustock, which infects…

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