今天上網，輸入www.google.cn，結果網頁跳轉到一個類似與百度的頁面，但是網址卻寫的是www.yahoo.com.cn，從頁面上看，絕對不是百度的網頁，但是奇怪的是可以進行搜索。ping了之后發現三個網站都來之于同一個IP地址：219.235.3.16。這肯定是中了病毒或者木馬之類的東西了，結果在電腦里面找了半天，查找到了一個名為host的文件

該文件在system32/drives/etc目錄下。打開host之后，里面的內容是：

127.0.0.1       localhost
219.235.3.16    search.114.vnet.cn
219.235.3.16    keyword.vnet.cn
219.235.3.16    auto.search.msn.com
219.235.3.16    search.msn.com
219.235.3.16    cnweb.search.live.com
219.235.3.16    www.360safe.com
219.235.3.16    www.k369.com
219.235.3.16    www.5566.net
219.235.3.16    360safe.com
202.165.102.243    update.360safe.com
219.235.3.16    dl.360safe.com
219.235.3.16    down.360safe.com
219.235.3.16    bbs.360safe.com
219.235.3.16    kaba.360safe.com
219.235.3.16    baike.360safe.com
219.235.3.16    www.360.cn
219.235.3.16    360.cn
219.235.3.16    wopti.360.cn
202.165.102.243    update.360.cn
219.235.3.16    dl.360.cn
219.235.3.16    down.360.cn
219.235.3.16    bbs.360.cn
219.235.3.16    kaba.360.cn
219.235.3.16    baike.360.cn
219.235.3.16    360.qihoo.com
219.235.3.16    360safe.qihoo.com
219.235.3.16    forum.ikaka.com
219.235.3.16    www.ikaka.com
202.165.102.243 update.ikaka.com
219.235.3.16    forum.jiangmin.com
202.165.102.243 update.jiangmin.com
219.235.3.16    tieba.baidu.com
219.235.3.16    post.baidu.com
219.235.3.16    zhidao.baidu.com
219.235.3.16    www.baidu.com
202.165.102.243 update.rising.com.cn
219.235.3.16    online.rising.com.cn
202.165.102.243 center.rising.com.cn
219.235.3.16    up.duba.net
219.235.3.16    vi.duba.net
219.235.3.16    shadu.baidu.com
219.235.3.16    du.baidu.com
219.235.3.16    security.symantec.com
219.235.3.16    shadu.duba.net
219.235.3.16    bbs.duba.net
219.235.3.16    www.duba.net
219.235.3.16    online.jiangmin.com
219.235.3.16    cn.mcafee.com
219.235.3.16    www.ahn.com.cn
219.235.3.16    www.kaspersky.com.cn
219.235.3.16    www.pcav.cn
219.235.3.16    www.luosoft.com
219.235.3.16    www.im286.com
219.235.3.16    an.baidu.com
219.235.3.16    ma.baidu.com
219.235.3.16    bbs.htmlman.net
202.165.102.243 download.rising.com.cn
202.165.102.243 rsup08.rising.com.cn
219.235.3.16    10000.286er.com
219.235.3.16    im286.net
219.235.3.16    ju.qihoo.com
219.235.3.16    bbs.chinaz.com
219.235.3.16    www.qihoo.com
202.165.102.243 dnl-cn1.kaspersky-labs.com
202.165.102.243 dnl-cn2.kaspersky-labs.com
202.165.102.243 dnl-cn3.kaspersky-labs.com
202.165.102.243 dnl-cn4.kaspersky-labs.com
202.165.102.243 dnl-cn5.kaspersky-labs.com
202.165.102.243 dnl-cn6.kaspersky-labs.com
202.165.102.243 dnl-cn7.kaspersky-labs.com
202.165.102.243 dnl-cn8.kaspersky-labs.com
202.165.102.243 dnl-cn9.kaspersky-labs.com
202.165.102.243 dnl-cn10.kaspersky-labs.com
202.165.102.243 dnl-cn11.kaspersky-labs.com
202.165.102.243 dnl-cn12.kaspersky-labs.com
202.165.102.243 dnl-cn13.kaspersky-labs.com
202.165.102.243 dnl-cn14.kaspersky-labs.com
202.165.102.243 dnl-cn15.kaspersky-labs.com
202.165.102.243    dnl-eu1.kaspersky-labs.com
202.165.102.243    dnl-eu2.kaspersky-labs.com
202.165.102.243    dnl-eu3.kaspersky-labs.com
202.165.102.243    dnl-eu4.kaspersky-labs.com
202.165.102.243    dnl-eu5.kaspersky-labs.com
202.165.102.243    dnl-eu6.kaspersky-labs.com
202.165.102.243    dnl-eu7.kaspersky-labs.com
202.165.102.243    dnl-eu8.kaspersky-labs.com
202.165.102.243    dnl-eu9.kaspersky-labs.com
202.165.102.243    dnl-eu10.kaspersky-labs.com
202.165.102.243    dnl-eu11.kaspersky-labs.com
202.165.102.243    dnl-eu12.kaspersky-labs.com
202.165.102.243    dnl-eu13.kaspersky-labs.com
202.165.102.243    dnl-eu14.kaspersky-labs.com
202.165.102.243    dnl-eu15.kaspersky-labs.com
202.165.102.243    dnl-us1.kaspersky-labs.com
202.165.102.243    dnl-us2.kaspersky-labs.com
202.165.102.243    dnl-us3.kaspersky-labs.com
202.165.102.243    dnl-us4.kaspersky-labs.com
202.165.102.243    dnl-us5.kaspersky-labs.com
202.165.102.243    dnl-us6.kaspersky-labs.com
202.165.102.243    dnl-us7.kaspersky-labs.com
202.165.102.243    dnl-us8.kaspersky-labs.com
202.165.102.243    dnl-us9.kaspersky-labs.com
202.165.102.243    dnl-us10.kaspersky-labs.com
202.165.102.243    dnl-us11.kaspersky-labs.com
202.165.102.243    dnl-us12.kaspersky-labs.com
202.165.102.243    dnl-us13.kaspersky-labs.com
202.165.102.243    dnl-us14.kaspersky-labs.com
202.165.102.243    dnl-us15.kaspersky-labs.com
202.165.102.243    dnl-ru1.kaspersky-labs.com
202.165.102.243    dnl-ru2.kaspersky-labs.com
202.165.102.243    dnl-ru3.kaspersky-labs.com
202.165.102.243    dnl-ru4.kaspersky-labs.com
202.165.102.243    dnl-ru5.kaspersky-labs.com
202.165.102.243    dnl-ru6.kaspersky-labs.com
202.165.102.243    dnl-ru7.kaspersky-labs.com
202.165.102.243    dnl-ru8.kaspersky-labs.com
202.165.102.243    dnl-ru9.kaspersky-labs.com
202.165.102.243    dnl-ru10.kaspersky-labs.com
202.165.102.243    dnl-ru11.kaspersky-labs.com
202.165.102.243    dnl-ru12.kaspersky-labs.com
202.165.102.243    dnl-ru13.kaspersky-labs.com
202.165.102.243    dnl-ru14.kaspersky-labs.com
202.165.102.243    dnl-ru15.kaspersky-labs.com
202.165.102.243    dnl-jp1.kaspersky-labs.com
202.165.102.243    dnl-jp2.kaspersky-labs.com
202.165.102.243    dnl-jp3.kaspersky-labs.com
202.165.102.243    dnl-jp4.kaspersky-labs.com
202.165.102.243    dnl-jp5.kaspersky-labs.com
202.165.102.243    dnl-jp6.kaspersky-labs.com
202.165.102.243    dnl-jp7.kaspersky-labs.com
202.165.102.243    dnl-jp8.kaspersky-labs.com
202.165.102.243    dnl-jp9.kaspersky-labs.com
202.165.102.243    dnl-jp10.kaspersky-labs.com
202.165.102.243    dnl-jp11.kaspersky-labs.com
202.165.102.243    dnl-jp12.kaspersky-labs.com
202.165.102.243    dnl-jp13.kaspersky-labs.com
202.165.102.243    dnl-jp14.kaspersky-labs.com
202.165.102.243    dnl-jp15.kaspersky-labs.com
202.165.102.243    dnl-kr1.kaspersky-labs.com
202.165.102.243    dnl-kr2.kaspersky-labs.com
202.165.102.243    dnl-kr3.kaspersky-labs.com
202.165.102.243    dnl-kr4.kaspersky-labs.com
202.165.102.243    dnl-kr5.kaspersky-labs.com
202.165.102.243    dnl-kr6.kaspersky-labs.com
202.165.102.243    dnl-kr7.kaspersky-labs.com
202.165.102.243    dnl-kr8.kaspersky-labs.com
202.165.102.243    dnl-kr9.kaspersky-labs.com
202.165.102.243    dnl-kr10.kaspersky-labs.com
202.165.102.243    dnl-kr11.kaspersky-labs.com
202.165.102.243    dnl-kr12.kaspersky-labs.com
202.165.102.243    dnl-kr13.kaspersky-labs.com
202.165.102.243    dnl-kr14.kaspersky-labs.com
202.165.102.243    dnl-kr15.kaspersky-labs.com
202.165.102.243    dnl-cd1.kaspersky-labs.com
202.165.102.243    dnl-cd2.kaspersky-labs.com
202.165.102.243    dnl-cd3.kaspersky-labs.com
202.165.102.243    dnl-cd4.kaspersky-labs.com
202.165.102.243    dnl-cd5.kaspersky-labs.com
202.165.102.243    dnl-cd6.kaspersky-labs.com
202.165.102.243    dnl-cd7.kaspersky-labs.com
202.165.102.243    dnl-cd8.kaspersky-labs.com
202.165.102.243    dnl-cd9.kaspersky-labs.com
202.165.102.243    dnl-cd10.kaspersky-labs.com
202.165.102.243    dnl-cd11.kaspersky-labs.com
202.165.102.243    dnl-cd12.kaspersky-labs.com
202.165.102.243    dnl-cd13.kaspersky-labs.com
202.165.102.243    dnl-cd14.kaspersky-labs.com
202.165.102.243    dnl-cd15.kaspersky-labs.com
202.165.102.243    downloads1.kaspersky-labs.com
202.165.102.243    downloads2.kaspersky-labs.com
202.165.102.243    downloads3.kaspersky-labs.com
202.165.102.243    downloads4.kaspersky-labs.com
202.165.102.243    downloads5.kaspersky-labs.com
219.235.3.16       rss.360safe.com
219.235.3.16       x.360safe.com
219.235.3.16       d.360safe.com
219.235.3.16       updatem.360safe.com
219.235.3.16       softm.360safe.com
219.235.3.16       ishare.sina.com.cn
219.235.3.16       search.cn.yahoo.com
219.235.3.16       www.google.com
219.235.3.16       google.com
219.235.3.16       www.google.cn
219.235.3.16       www.yahoo.com.cn
219.235.3.16       cn.yahoo.com
219.235.3.16       search.tom.com
219.235.3.16       zhuansha.duba.net
219.235.3.16       buy.duba.net
219.235.3.16       kad.www.duba.net
219.235.3.16       cu001.www.duba.net
219.235.3.16       cu002.www.duba.net
219.235.3.16       cu003.www.duba.net
219.235.3.16       cu004.www.duba.net
219.235.3.16       cu005.www.duba.net
219.235.3.16       cu010.www.duba.net
219.235.3.16       client.download.duba.net
219.235.3.16       page.so.163.com
219.235.3.16       www.soso.com
219.235.3.16       sou.china.com
219.235.3.16       test.591jx.com
219.235.3.16       a.topxxxx.cn
219.235.3.16       picon.chinaren.com
219.235.3.16       www.5566.net
127.0.0.1 p.qqkx.com
127.0.0.1 news.netandtv.com
127.0.0.1 z.neter888.cn
127.0.0.1 b.myblank.cn
127.0.0.1 wvw.wokutu.com
127.0.0.1 unionch.qyule.com
127.0.0.1 www.qyule.com
127.0.0.1 it.itjc.cn
127.0.0.1 www.linkwww.com
127.0.0.1 vod.kaicn.com
127.0.0.1 www.tx8688.com
127.0.0.1 b.neter888.cn
127.0.0.1 promote.huanqiu.com
127.0.0.1 www.huanqiu.com
127.0.0.1 www.haokanla.com
127.0.0.1 play.unionsky.cn
127.0.0.1 www.52v.com
127.0.0.1 www.gghka.cn
127.0.0.1 icon.ajiang.net
127.0.0.1 new.ete.cn
127.0.0.1 www.stiae.cn
127.0.0.1 o.neter888.cn
127.0.0.1 comm.jinti.com
127.0.0.1 www.google-analytics.com
127.0.0.1 hz.mmstat.com
127.0.0.1 www.game175.cn
127.0.0.1 x.neter888.cn
127.0.0.1 z.neter888.cn
127.0.0.1  p.etimes888.com
127.0.0.1  hx.etimes888.com
127.0.0.1 abc.qqkx.com
127.0.0.1 dm.popdm.cn
127.0.0.1 www.yl9999.com
127.0.0.1 www.dajiadoushe.cn
127.0.0.1 down.nihao29.cn
127.0.0.1 v.onondown.com.cn
127.0.0.1 www.interoo.net
127.0.0.1 bally1.bally-bally.net
127.0.0.1 www.bao5605509.cn
127.0.0.1   down.nihao29.cn
127.0.0.1   www.mzd020.cn
127.0.0.1   jzm015.cn
127.0.0.1   down.hs7yue.cn
127.0.0.1   new.doups.cn
127.0.0.1   w.qq-uc.cn
127.0.0.1   down.nihao69.cn
127.0.0.1   www.rty456.cn
127.0.0.1   www.werqwer.cn
127.0.0.1   1.360-1.cn
127.0.0.1   user1.23-16.net
127.0.0.1   www.guccia.net
127.0.0.1   www.interoo.net
127.0.0.1   upa.netsool.net
127.0.0.1   js.users.51.la
127.0.0.1   vip2.51.la
127.0.0.1   web.51.la
127.0.0.1   qq.gong2008.com
127.0.0.1   2008tl.copyip.com
127.0.0.1   tla.laozihuolaile.cn
127.0.0.1   www.tx6868.cn
127.0.0.1   p001.tiloaiai.com
127.0.0.1   s1.tl8tl.com
127.0.0.1   s1.gong2008.com

 

刪除了該文件之后，結果IE正常。但是我懷疑應該有exe或者dll文件存在在電腦里面，因為IE來讀取這個文件，而且ping命令也是讀取這個文件，但是查找半天都沒有找到。希望大家有誰遇到過類似的問題，幫我解決一下。謝謝了。
         不知道大家對這個原理了解嗎？可以探討一下！