Pushdo DDoS Malware Botnet Traffic Sample PCAP File Downloads
In June, 2009 it was estimated that the Cutwail botnet was the largest botnet in terms of the amount of infected hosts. Security provider MessageLabs estimated that the total size of the botnet was around 1.5 to 2 million individual computers, capable of sending 74 billion spam messages a day, or 51 million every minute, equal to 46.5% of the worldwide spam volume.
In February 2010 the botnet’s activities were slightly altered when it started a DDoS attack against 300 major sites, including the CIA, FBI, Twitter and Paypal. The reasons for this attack weren’t fully understood, and some experts described it as an “accident”, mainly due to the lack of damage and disruption, along with the infrequency of the attacks
In August 2010, researchers from University of California, Santa Barbara and Ruhr University Bochum attempted to take down the botnet, and managed to take offline 20 of the 30 Command and Control servers that the botnet was using.
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