Experts are forecasting an increase in spam as a result of the "Storm" worm that sent out six separate waves containing hundreds of thousands of e-mails during the weekend, and continues to touch down on computers worldwide.

"The malware is distributed to set up a network of infected zombie computers, which can then be used to launch massive spam campaigns," said Commtouch Chief Technology Officer Amir Lev, in a statement.

The Small.Dam worm, dubbed "Storm" because of its reference to a major storm in Europe in its subject line, was first uncovered during the week of Jan. 15.

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