hook脚本的编写

1.hook_map

 var TreeMap = Java.use('java.util.TreeMap');
    var Map = Java.use("java.util.Map");

    TreeMap.put.implementation = function (key,value) {
        if(key=="data"){
            console.log(key,value);
        }
        var res = this.put(key,value);
        return res;
    }

2 hook_StringBuilder

 var StringBuilder = Java.use("java.lang.StringBuilder");
    
    StringBuilder.toString.implementation = function () {
        var res = this.toString();
        console.log(res); 
        return res;
    }

3 hook_base64

var Base64 = Java.use("android.util.Base64");

    Base64.encodeToString.overload('[B', 'int').implementation = function (bArr,val) {
        var res = this.encodeToString(bArr,val);
        console.log("加密了-->",res);
         console.log(Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Throwable").$new()));
        return res;
    }

4.关于拦截器的hook

import frida
import sys

rdev = frida.get_remote_device()
pid = rdev.spawn(["com.hupu.shihuo"])
session = rdev.attach(pid)

scr = """
Java.perform(function () {
     var UpdateDialog = Java.use("com.azhon.appupdate.dialog.UpdateDialog")
   
    //hook替换
    UpdateDialog.show.implementation = function(){
    console.log("++++++++show来啦++++++++++++++");
    //this.show();
    } 

    var Builder = Java.use('okhttp3.OkHttpClient$Builder');
    Builder.addInterceptor.implementation = function (inter) {
        //console.log("实例化：");
        console.log(inter);
        console.log(JSON.stringify(inter));
        //console.log(Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Throwable").$new()));
        return this.addInterceptor(inter);
    };
})
"""
script = session.create_script(scr)


def on_message(message, data):
    print(message, data)


script.on("message", on_message)
script.load()
rdev.resume(pid)
sys.stdin.read()