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    A Day in the Life of the Rustock Botnet

    By
    Brian Prince
    -
    July 28, 2009
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      PrevNext

      1A Day in the Life of the Rustock Botnet

      1

      by Brian Prince

      2Evolution of Rustock

      2

      This is a picture of the early evolution of the Rustock backdoor Trojan. Totmau is a Trojan Symantec found a few months before Rustock was discovered. Researchers there suspect the malware authors may be the same or connected, but that has not been established.

      3Rustock Code

      3

      This is the actual code Rustock uses to target victims.

      4Cracking Rustocks Code

      4

      Here is a flowchart of a Rustock sample using a method to make things difficult for analysts. The malware author twists the code on purpose in an attempt to obfuscate the real intention.

      5How It Happens

      5

      In this diagram, researchers outlined how the botnet works to infect users and spread spam.

      6A Side of Spam

      6

      Rustock is a sophisticated and prolific spamming machine. The individual spambots are among the fastest at sending spam that we have observed—we clocked one individual bot at 25,000 messages per hour from a standard desktop PC.

      7Communication Is Key

      7

      This image shows the flow of information a bot goes through when it queries the C&C server.

      PrevNext

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