Dasher worm gallops onto the Net | Tech News on ZDNet
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A Windows-targeted worm that drops spying software on vulnerable PCs is spreading across the Internet, security experts have warned.

The Dasher.B worm exploits a flaw in Microsoft Windows Distributed Transaction Coordinator, or MDTC, security companies said Friday. Microsoft announced and patched the hole in the component for transaction processing in October. However, initial glitches with the update may have left some users without a properly implemented fix, Sophos said.