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3544变形病毒具有数亿种变形,其加密部分也可变为910个段落,比率约为1:1000, 分别变化着穿插在被感染的文件各处。长期以来,大多数杀毒软件误认为3544变形病毒是10个加密段落,因而,9个加密段落的病毒产生漏查漏杀现象,致使该病毒长久以来,在国际上屡杀不绝,反复流行,被列为世界十大流行病毒之一,在国内也是感染概率较高的病毒。
3544幽灵病毒感染硬盘主引导区和.COM.EXE文件。潜伏在硬盘主引导区的病毒具
有极大的危害性,用硬盘引导一次,病毒就借机从硬盘最后两个柱面开始对硬盘上的信息加密,每引导一次硬盘,病毒就向前加密两个柱面,直至硬盘大部分被病毒加密。
要读取被病毒加密的硬盘信息,必需用自身染毒的硬盘引导后由病毒自行解密,方可正常读取。如用软盘引导系统后,就无法读取被病毒加密了的硬盘信息。
硬盘一旦染有此毒,立即杀除,危害不大。若长久不查杀,危害极大。如未解密硬盘信息,而草率地去杀死引导区病毒,那么,硬盘上被病毒加密的信息大部分会丢失。
如果硬盘染有此毒已久,硬盘大部分信息已被病毒加密,这时,若另外一覆盖式引导区病毒将此引导区病毒覆盖,那么,硬盘上被病毒加密了的信息将大部分丢失,损失惨重。
硬盘染有此毒已久,硬盘大部分信息已被病毒加密,这时,另外一搬家式引导区病毒将此3544病毒移位,自己先占据硬盘主引导区,那么,硬盘引导时,新病毒先被激活,新病毒再调用老病毒,老病毒再解密硬盘信息,使硬盘信息还可使用。一旦用杀毒软件先将占据硬盘主引导区的病毒杀死,那么,硬盘信息将大部分丢失


IP属地:山东本楼含有高级字体1楼2015-10-16 08:29回复
    Today we studied the traditions of Oxford university.I think that the traditions of a university is very important.In Oxford university,Students have a special meal,with their manners.Some students like that,while others don't like that.But I think it's a good thing.It can make us remember the history of the school.
    In my university,There are also many traditions,such as,The older students always help the freshmen.And all of us have a special connection with the petroleum.So we're lucky to meet others.


    IP属地:山东来自Android客户端2楼2015-11-15 13:17
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      IP属地:山西来自Android客户端3楼2015-11-24 15:00
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        IP属地:山西来自Android客户端4楼2015-11-24 15:01
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          Mind maps are diagrams which help us to generate idea,and also to organize or structure our ideas related to a topic.
          Advantages:We can use it to make a list ,prepar for exams.And we can yss it for finding answers so that we can slove problem.It can also help us taje notes in the class.
          Disadvantage:There are only words,not sentences.And we maybe need a lot of colours.


          IP属地:山东来自Android客户端5楼2015-11-29 18:03
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            IP属地:山东来自Android客户端6楼2016-06-08 22:27
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              IP属地:山东来自Android客户端7楼2016-06-09 17:59
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