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Botnet articles

Microsoft and Symantec kill Bamital search hijacking botnet

In partnership with Symantec, Microsoft has disrupted yet another botnet, marking its sixth takedown in the three years since starting Project MARS (Microsoft Active Response for Security). Called "Bamital," the malware network has evolved into several variations since Symantec began…

World's third largest spam botnet 'Grum' taken down

Security researchers announced they’ve dismantled the world's third-largest botnet, known as Grum, which is believed to have been responsible for 18% of the world's spam. The shutdown was a joint effort between California security firm FireEye, the British-based Spamhaus Project…

Sophos: 20% of Macs harbor Windows malware

Although folks are currently fixated on the Flashback botnet, Sophos draws attention to the fact that one in five Macs harbors some kind of Windows-oriented malware. The company gathered results over seven days from 100,000 Apple machines using its free antivirus program...

Microsoft disables 41,000-strong Kelihos botnet

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…