Bot infected PCs get a refresh
On Christmas day, the number of bots tracked by the Shadowserver group dropped nearly 20 percent.
The dramatic decrease in weekly totals from more than 500,000 infected systems to less than 400,000 computers puzzled researchers. The Internet Storm Center, a threat monitoring group managed by the SANS Institute, confirmed a drop of about 10 percent.
One of the Internet Storm Center's network monitoring volunteers posited that the decrease was due to the large number of computers given as gifts this Christmas. Bot-infected PCs get a refresh
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