If this is a worm or Trojan horse the length represents the size of the file.

如果这是一个蠕虫或特洛依木马则长度表示为该文件的长度。

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If contracted virus, worm or Trojan, if run a few other jobs on computer again, may expend a large number of resource, what make a system slower than moving at ordinary times thereby is much.

如果感染了病毒，蠕虫或木马，如果再在电脑上运行一些其他的任务，可能会耗费大量资源，从而使系统比平时运行慢的多。

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The experiment result shows that the worm-kind Trojan horse can play positive role in the network attack and defense.

实验结果表明，蠕虫型木马可以在网络攻防中发挥积极作用。

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