这是什么病毒啊?有什么危害?

Net-Worm.Win32.Bobic.k
Type Worm
Type Description A Worm is a malicious program that spreads itself without any user intervention. Worms are similar to viruses in that they self-replicate. Unlike viruses, however, worms spread without attaching to or infecting other programs and files. A Worm can spread across computer networks via security holes on vulnerable machines connected to the network. Worms can also spread through email by sending copies of itself to everyone in the user's address book. A Worm may consume a large amount of system resources and cause the machine to become noticeably sluggish and unreliable. Some Worms may be used to compromise infected machines and download additional malicious software.
Category Worm.Generic
Category Description A Worm is a malicious program that spreads itself without any user intervention. Worms are similar to viruses in that they self-replicate. Unlike viruses, however, worms spread without attaching to or inf