When it reaches a new victim, the virus searches for addresses to despatch itself to and also picks a random e-mail address for the 'from' line to cover its tracks.

BBC: Virus makes unwelcome return

According to an ongoing investigation by the Washington Post, who initiated the McColo shutdown, the Srizbi bots have been programmed with a mathematical formula that in the event of a shutdown generate a random but unique web address to check for updates.

BBC: Spam on rise after brief reprieve

In late December of 2011, while browsing the Internet, I came across an article about a random reporter who obtained the email address of a famous billionaire by conducting a simple Google search.

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