Spam Wars: Windows Worm Builds Massive Botnet->
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CWmike
CWmike writes "The worm exploiting a critical Windows bug that Microsoft patched with an emergency fix in late October is now being used to build a fast-growing botnet, said Ivan Macalintal, a senior research engineer with Trend Micro. Dubbed "Downad.a" by Trend, "Conficker.a" by Microsoft, and "Downadup" by Symantec Corp., the worm is a key component in a massive new botnet that a new criminal element not associated with McColo is creating. "We think 500,000 is a ball park figure," said Macalintal when asked the size of the new botnet. "That's not as large as some, such as [the] Kraken [botnet], or Storm earlier, but it's still starting to grow." Meanwhile, one spam-spewing botnet shut down with McColo, which had resurfaced last week, was shut down today by an ISP in Estonia."
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Spam Wars: Windows Worm Builds Massive Botnet