某美动态参数对抗思路

目标网址：aHR0cHM6Ly93d3cuaXNodW1laS5jb20vdHJpYWwvY2FwdGNoYS5odG1s

(function(a1,a2,a3){
xxx(a1);
xxx(a2);
xxx(a3);
}('a1','a2','a3'))

"CallExpression"(path){
    var {arguments}=path.node;
        if(arguments.length!=3)return;
        if(!types.isLiteral(arguments[1]) || !types.isCallExpression(arguments[2]))return;
        var key=arguments[1].value;
        var {callee,arguments}=arguments[2];
        if(!types.isMemberExpression(callee))return;
        if(!types.isThisExpression(callee.object))return;
        if(callee.property.value!='getEncryptContent')return;
        var key_value=arguments[1].value;
        ....
    }   
}

"AssignmentExpression"(path){
    var {left,right}=path.node;
    var {callee,arguments}=right;
    if(!types.isMemberExpression(callee))return;
    var {object,property}=callee;
    if(!types.isThisExpression(object))return;
    if(property.value!='getEncryptContent')return;
    if(arguments.length!=2)return;
    var key_value=arguments[1].value;
    var {property}=left;
    var key=property.value;
    ....
}