In November, online statistics returned to their usual state of flux: there are a number of new malicious programs in the Top 10, and it's unclear what the future may hold. The newcomers could potentially lay the foundation for future statistics. This is especially true of the two classic viruses, Virut.av and Virut.q, which both pose a serious threat and are spreading rapidly. The former took second place in November's rankings. Two worms, Brontok and Rays, have already managed to establish themselves in this way. Despite having been around for years, they remain among the most widespread malicious programs.
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