Unity游戏逆向学习记录01

学习工具收集记录 ， 关键信息记录
工具：
1、https://github.com/Perfare/Il2CppDumper
2、https://github.com/dnSpy/dnSpy
操作：
打开工具 Il2CppDumper，依次选择：libil2cpp.so，global-metadata.dat
dnSpy 拖入反编译后的 /DummyDll/Assembly-CSharp.dll

Unity游戏与Java的通信是通过UnitySendMessage()之类的函数来实现的

Objection来完成Class批量断点
objection -g com.android.settings explore
参考地址：https://www.cnblogs.com/lxh2cwl/p/14842544.html

hook偏移地址方法

function start(){
    //com.izyplay.defusethebomb.bazhang
    var arrayAddr = [0x54728C,0x547310,0x54745C,0x547DF8,0x547484,0x548218,0x547F30,0x55DF40
        ,0x679798,0x6798B4,0x687428,0x687350]; 
    var arrayName = ["AndroidDialog Create","AndroidDialog Create1","AndroidDialog init"
        ,"AndroidMessage Create","showDialog","CallStatic","showMessage","SetPressedState"
        ,"NativeDialog","NativeMessage","ToggleButton","OnClick"]; 
    
    var soAddr = Module.findbaseAddress("libil2cpp.so");
    console.error('nsoAddr:' + soAddr + "n");

    for (var index = 0; index < arrayAddr.length; index++) {  
        console.log("-------------------------");
        var currentAddr = soAddr.add(arrayAddr[index]);
        console.log('currentAddr:' + currentAddr);
        funcTmp(currentAddr,soAddr,index,arrayName);
        console.log("tt---->"+index,arrayAddr[index]+" is prepared ");  
    } 
    console.log("n")
}

function funcTmp(currentAddr,soAddr,index,arrayName){
    Interceptor.attach(currentAddr, {
        onEnter: function(args){
            console.log("called : "+arrayName[index]+"  ----- addr : " + currentAddr.sub(soAddr) +"n");
        },
        onLeave: function(retval){

        }
    });
}