搜索方法名:tech.xiangzi.painless.data.remote.model.UserBean.getPro
点击第一个:
在返回前添加代码:const v0,0x9
修改完成,成品图:
hook 代码:
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Java.perform(function () {
//打印堆栈信息的方法
function showStacks() {
console.log(
Java.use("android.util.Log")
.getStackTraceString(
Java.use("java.lang.Throwable").$new()
)
);
}
var Intent = Java.use("android.content.Intent");
Intent.$init.overload('android.content.Context', 'java.lang.Class').implementation = function (context, cls) {
console.log("Intent(context, cls) called with context: " + context + " and class: " + cls);
showStacks();
return this.$init(context, cls);
};
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软件里点击“自定义单词本”后跳转到购买会员的界面,同时控制台打印出堆栈信息:
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java.lang.Throwable
at android.content.Intent.<init>(Native Method)
at tech.xiangzi.painless.utils.ext.CustomExtKt.toPayPage(Unknown Source:29)
at tech.xiangzi.painless.ui.fragment.SettingFragment$showPayDialog$1$1.invoke(Unknown Source:7)
at tech.xiangzi.painless.ui.fragment.SettingFragment$showPayDialog$1$1.invoke(Unknown Source:0)
at tech.xiangzi.painless.ui.activity.MainActivity.onClickInterceptor(SourceFile:252)
at tech.xiangzi.painless.ui.activity.MainActivity.onClickInterceptor$default(Unknown Source:11)
at tech.xiangzi.painless.ui.fragment.SettingFragment.showPayDialog(Unknown Source:22)
at tech.xiangzi.painless.ui.fragment.SettingFragment.access$showPayDialog(Unknown Source:0)
at tech.xiangzi.painless.ui.fragment.SettingFragment$initView$1$4$2.invoke(Unknown Source:85)
at tech.xiangzi.painless.ui.fragment.SettingFragment$initView$1$4$2.invoke(Unknown Source:8)
at com.drake.brv.BindingAdapter$BindingViewHolder$2.invoke(Unknown Source:40)
at com.drake.brv.BindingAdapter$BindingViewHolder$2.invoke(Unknown Source:2)
at com.drake.brv.listener.ThrottleClickListener.onClick(Unknown Source:24)
at android.view.View.performClick(View.java:7755)
at android.view.View.performClickInternal(View.java:7728)
at android.view.View.access$3700(View.java:862)
at android.view.View$PerformClick.run(View.java:29337)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:210)
at android.os.Looper.loop(Looper.java:299)
at android.app.ActivityThread.main(ActivityThread.java:8307)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:577)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1073)
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一个个看过去,定位到关键函数:
之所以跳转到购买会员的界面是因为getPro()
返回值为0,所以将返回值改成1
又发现这样子还不是终生会员,所以我们查看一下getPro()
的用例,定位到一个关键函数:
getPro()
的返回值为9才是终生会员(早知道直接搜索关键字“终生会员”了,绕了那么大一圈……)
做个总结吧:hook定位固然好用,但还是动静态分析结合有更高的效率,例如这个案例,如果一开始就用关键词搜索的效率会更高