校园网络随机劫持网页，来看看是干嘛的！

V2EX = way to explore

V2EX 是一个关于分享和探索的地方

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这是一个创建于 2906 天前的主题，其中的信息可能已经有所发展或是发生改变。

来人看看，是不是再干坏事啊。

先访问劫持网页，再访问原本网页。

劫持网页

<html>
<head>
<script language="javascript">setTimeout("location.replace(location.href.split(\"#\")[0])",2000);</script>
<script type="text/javascript" src="http://1.1.1.2:89/cookie/flash.js"></script>
<script language="javascript">setURL("1.1.1.2");supFlash("18446744072909971032");</script>
</head>
<body>
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="0" height="0" id="m" align="center"><param name="allowScriptAccess" value="always" />
<param name="movie" value="http://1.1.1.2:89/cookie/flashcookie.swf" />
<param name="quality" value="high" />
<param name="FlashVars" value="srv=1.1.1.2" />
<embed src="http://1.1.1.2:89/cookie/flashcookie.swf"FlashVars="srv=1.1.1.2" quality="high" width="0" height="0"  name="m" align="center" allowScriptAccess="always" type="application/x-shockwave-flash"pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>
</body

flash.js

var url = "";
function setURL(ip){url = "http://"+ip+":89/cookie/flashcookie.html";}
function loadPage(){location.replace(location.href.split("#")[0]);}

////add by yxf@2014/08/27
/**
 *@描  述：增加 UA 判断，排除移动终端上报 cookies 值和时间间隔值
 *@返回值：
 *		true, 允许上报； false ，不允许上报
 */
function IsCanReport2Ac(){
	
	var strUseAgent = navigator.userAgent.toLowerCase();
	
	//非 windows nt
	var isWinNt = strUseAgent.indexOf("windows nt") > -1;
	if (!isWinNt){	return false;}
	
	//移动终端
	var isMobile = strUseAgent.indexOf("mobile") > -1;
	if (isMobile){	return false;}
	
	//为 Android
	var isAndroid = strUseAgent.indexOf("android") > -1;
	if (isAndroid){	return false;}
	
	//为 ios
	var isIOS = !!strUseAgent.match(/\(i[^;]+;( u;)? cpu.+mac os x/);
	if (isIOS){	return false;}
	
	//为 Symbian
	var isSymbian = strUseAgent.indexOf("symbian") > -1;
	if (isSymbian){	return false;}

	//为 iPhone
	var isIPhone = strUseAgent.indexOf("iphone") > -1;
	if (isIPhone){	return false;}
	
	//为 ipad
	var isIPad = strUseAgent.indexOf("ipad") > -1;
	if (isIPad){ return false;}
	
	//为 ipod
	var isIPod = strUseAgent.indexOf("ipod") > -1;
	if (isIPod){ return false;}
	
	//排除一些误判的 app 特征字符串
	var isInvalidAppPos = strUseAgent.search(/ baidubrowser\/\d/);//-- 百度一下客户端
	if (-1 != isInvalidAppPos){ return false;}
	
	return true;
}
////end by yxf


// 写 cookies
function setCookie(name,value)
{
    var Days = 30;
    var exp = new Date();
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}

// 读取 cookies
function getCookie(name)
{
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
 
    if(arr=document.cookie.match(reg)){
	
		return (arr[2]);
	}else{
	
        return null;
	}
}

function supFlash(cookie)
{	
	if (false === IsCanReport2Ac()){
	
		loadPage();		
		return;
	}
	
	// 获取本地 cookie 值
	var td_cookie = getCookie("td_cookie");
	if (td_cookie == cookie){
	
		loadPage();		
		return;
	}
	setCookie("td_cookie", cookie);
	
	var flash = 0;
	var judgeIE = !-[1,];
	var ua = navigator.userAgent.toLowerCase();
	if (ua.indexOf("taobrowser") > 0 || ua.indexOf("lbbrowser") > 0) {
	
		loadPage();
		return;
	}
	var isIE = judgeIE || ua.indexOf("msie") > 0 || ua.indexOf("trident/7.0") > 0;
	if(isIE){
		try{
			var swf1 = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
			flash = 1;
		}
		catch(e){
			flash = 0;
		}
	}
	else {
		try{
			var swf2 = navigator.plugins['Shockwave Flash'];
			if(swf2 == undefined){
				flash = 0;
			}
			else {
				flash = 1;
			}
		}
		catch(e){
			flash = 0;
		}
	}

	if(flash === 0)
	{
		loadPage();
		return;
	}	
}

// 配置排除列表
var excludeList = new Array("ADMUI3Lg","ADMUI3Sm","Photoshop Large","Photoshop Small");

var makeCRCTable = function(){
    var c;
    var crcTable = [];
    for(var n =0; n < 256; n++){
        c = n;
        for(var k =0; k < 8; k++){
            c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
        }
        crcTable[n] = c;
    }
    return crcTable;
}

var crc32 = function(str) {
    var crcTable = window.crcTable || (window.crcTable = makeCRCTable());
    var crc = 0 ^ (-1);

    for (var i = 0; i < str.length; i++ ) {
        crc = (crc >>> 8) ^ crcTable[(crc ^ str.charCodeAt(i)) & 0xFF];
    }

    return (crc ^ (-1)) >>> 0;
};

function isArray(value)
{
	return value && 
			typeof value === 'object' &&
			typeof value.length === 'number' &&
			!(value.propertyIsEnumerable('length'));
}

function removeExcludeFont(fontArr, excludeList)
{
	if (!excludeList.length)
	{
		return fontArr;
	}
	
	var flag = 0;
	var resArr = new Array();
	for (var i = 0; i < fontArr.length; ++i)
	{
		flag = 0;
		for (var j = 0; j < excludeList.length; ++j)
		{
			if (fontArr[i] == excludeList[j])
			{ 
				flag = 1;
				break;
			}
			if (fontArr[i].match(/\.tmp/))
			{
				flag = 1;
				break;
			}
		}
		if (!flag)
		{
			resArr.push(fontArr[i])
		}
	}
	
	resArr.sort();
	return resArr;
}

function jsSetCookie(fontArr, manu, vers, os)
{
	if(manu == "" || !isArray(fontArr)){
		loadPage();
		return;
	}
	
	if(url == ""){
		loadPage();
		return;
	}
	
	var fontStr = removeExcludeFont(fontArr, excludeList).join("|\n");
	var font_param = "manu_txt=" + manu +
				 "&manu_crc=" + crc32(manu).toString() + 
				 "&version=" + vers	+
				 "&font_crc=" + crc32(fontStr).toString() + 
				 "&os=" + os;
				
	var script = document.createElement("script");
	script.type = "text/javascript";
	var done = false;
	script.onload = script.onreadystatechange = function(){
		if ( !done && (!this.readyState ||
				this.readyState === "loaded" || this.readyState === "complete") ) {
			done = true;
			this.onload = this.onreadystatechange = null;
			loadPage();
			return;
		}
	};
	script.src = url +"?"+font_param+"&"+Math.random();
	document.getElementsByTagName("head")[0].appendChild(script);
}

8 条回复 • 2019-06-18 18:44:16 +08:00