当前位置：网站首页>X书6.97版本shield-unidbg调用方式
X书6.97版本shield-unidbg调用方式
2022-06-30 03:03:00 【Codeooo】
之前文章被下架，特意发布下xhs6.97版本shield生成分析过程。
shield-unidbg方式
jadx反编译后：
函数的调用顺序是 initializeNative > initialize > intercept
函数中大量使用了JNI方法，JNItrace会大大减轻这部分我们的工作量，忘了说了，JNItrace是一个基于Frida框架的Hook jni方法的库，https://github.com/chame1eon/jnitrace
jnitrace -l libbili.so tv.danmaku.bili --ignore-vm
直接将每个函数的偏移地址搞过来。
模板需要修改的地方:
unidbg - 》 getStaticObjectField 方法填写你的手机deviceId
@Override
public DvmObject<?> getStaticObjectField(BaseVM vm, DvmClass dvmClass, String signature) {
switch (signature){
case "com/xingin/shield/http/ContextHolder->sLogger:Lcom/xingin/shield/http/ShieldLogger;":{
return vm.resolveClass("com/xingin/shield/http/ShieldLogger").newObject(signature);
}
case "com/xingin/shield/http/ContextHolder->sDeviceId:Ljava/lang/String;":{
return new StringObject(vm, "81e30ab8-2b81-33dd-8435-f9404554b4b5");
}
}
return super.getStaticObjectField(vm, dvmClass, signature);
}
unidbg - 》 callObjectMethodV方法填写你的小红书路径下s.xml里的值:
或者在抓包响应头中: 查找xy-ter-str
hmac 结果都是在，响应头里，所以 hmac 是服务器下发给客户端的.
@Override
public DvmObject<?> callObjectMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
switch (signature) {
case "android/content/Context->getSharedPreferences(Ljava/lang/String;I)Landroid/content/SharedPreferences;":
return vm.resolveClass("android/content/SharedPreferences").newObject(vaList.getObjectArg(0));
case "android/content/SharedPreferences->getString(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;": {
if(((StringObject) dvmObject.getValue()).getValue().equals("s")){
System.out.println("getString :"+vaList.getObjectArg(0).getValue());
if (vaList.getObjectArg(0).getValue().equals("main")) {
return new StringObject(vm, "");
}
if(vaList.getObjectArg(0).getValue().equals("main_hmac")){
return new StringObject(vm, "a9+xPqTwWr7ua8QlDuTyLjvNTAszAxbIhBWeugeCNpcorLQJTUiH6JbLFDrW1cypknldr7izHSeoGQ1HzB6VAVu7iMG6FU1+bEt7/e+9cx6LmeDCOKSapcI9elpXr9ba");
}
}
}
case "okhttp3/Interceptor$Chain->request()Lokhttp3/Request;": {
DvmClass clazz = vm.resolveClass("okhttp3/Request");
return clazz.newObject(request);
}
case "okhttp3/Request->url()Lokhttp3/HttpUrl;": {
DvmClass clazz = vm.resolveClass("okhttp3/HttpUrl");
Request request = (Request) dvmObject.getValue();
return clazz.newObject(request.url());
}
case "okhttp3/HttpUrl->encodedPath()Ljava/lang/String;": {
HttpUrl httpUrl = (HttpUrl) dvmObject.getValue();
return new StringObject(vm, httpUrl.encodedPath());
}
case "okhttp3/HttpUrl->encodedQuery()Ljava/lang/String;": {
HttpUrl httpUrl = (HttpUrl) dvmObject.getValue();
return new StringObject(vm, httpUrl.encodedQuery());
}
case "okhttp3/Request->body()Lokhttp3/RequestBody;": {
Request request = (Request) dvmObject.getValue();
return vm.resolveClass("okhttp3/RequestBody").newObject(request.body());
}
case "okhttp3/Request->headers()Lokhttp3/Headers;": {
Request request = (Request) dvmObject.getValue();
return vm.resolveClass("okhttp3/Headers").newObject(request.headers());
}
case "okio/Buffer->writeString(Ljava/lang/String;Ljava/nio/charset/Charset;)Lokio/Buffer;": {
System.out.println("write to my buffer:"+vaList.getObjectArg(0).getValue());
Buffer buffer = (Buffer) dvmObject.getValue();
buffer.writeString(vaList.getObjectArg(0).getValue().toString(), (Charset) vaList.getObjectArg(1).getValue());
return dvmObject;
}
case "okhttp3/Headers->name(I)Ljava/lang/String;": {
Headers headers = (Headers) dvmObject.getValue();
return new StringObject(vm, headers.name(vaList.getIntArg(0)));
}
case "okhttp3/Headers->value(I)Ljava/lang/String;": {
Headers headers = (Headers) dvmObject.getValue();
return new StringObject(vm, headers.value(vaList.getIntArg(0)));
}
case "okio/Buffer->clone()Lokio/Buffer;": {
Buffer buffer = (Buffer) dvmObject.getValue();
return vm.resolveClass("okio/Buffer").newObject(buffer.clone());
}
case "okhttp3/Request->newBuilder()Lokhttp3/Request$Builder;": {
Request request = (Request) dvmObject.getValue();
return vm.resolveClass("okhttp3/Request$Builder").newObject(request.newBuilder());
}
case "okhttp3/Request$Builder->header(Ljava/lang/String;Ljava/lang/String;)Lokhttp3/Request$Builder;": {
Request.Builder builder = (Request.Builder) dvmObject.getValue();
builder.header(vaList.getObjectArg(0).getValue().toString(), vaList.getObjectArg(1).getValue().toString());
return dvmObject;
}
case "okhttp3/Request$Builder->build()Lokhttp3/Request;": {
Request.Builder builder = (Request.Builder) dvmObject.getValue();
return vm.resolveClass("okhttp3/Request").newObject(builder.build());
}
case "okhttp3/Interceptor$Chain->proceed(Lokhttp3/Request;)Lokhttp3/Response;": {
return vm.resolveClass("okhttp3/Response").newObject(null);
}
}
return super.callObjectMethodV(vm, dvmObject, signature, vaList);
}
附上unidbg全部源码：
注意上面说的要修改的地方：
package com.xhs6970181;
import com.github.unidbg.AndroidEmulator;
import com.github.unidbg.Module;
import com.github.unidbg.linux.android.AndroidEmulatorBuilder;
import com.github.unidbg.linux.android.AndroidResolver;
import com.github.unidbg.linux.android.dvm.*;
import com.github.unidbg.linux.android.dvm.array.ByteArray;
import com.github.unidbg.memory.Memory;
import okhttp3.*;
import okio.Buffer;
import okio.BufferedSink;
import org.apache.commons.codec.binary.Base64;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
public class xhs extends AbstractJni {
private final AndroidEmulator emulator;
private final VM vm;
private final Module module;
private Headers headers;
private Request request;
private String url;
xhs(){
emulator = AndroidEmulatorBuilder.for32Bit().setProcessName("com.xhs").build(); // 创建模拟器实例，要模拟32位或者64位，在这里区分
final Memory memory = emulator.getMemory(); // 模拟器的内存操作接口
memory.setLibraryResolver(new AndroidResolver(23)); // 设置系统类库解析
vm = emulator.createDalvikVM(new File("unidbg-android/src/test/resources/xhs69/xhs.apk"));
vm.setVerbose(true);
DalvikModule libcdm = vm.loadLibrary(new File("unidbg-android/src/main/resources/android/sdk23/lib/libc.so"), true);
// emulator.attach().addBreakPoint(libcdm.getModule().findSymbolByName("pthread_create").getAddress());
DalvikModule dm = vm.loadLibrary("shield", true);
vm.setJni(this);
module = dm.getModule();
System.out.println("call JNIOnLoad");
dm.callJNI_OnLoad(emulator);
String url = "https://edith.xiaohongshu.com/api/sns/v3/user/info?user_id=5aae2cffb1da1410848cc29f";
request = new Request.Builder()
.url(url)
.addHeader("x-b3-traceid", "9f9fb0630e150e0f")
.addHeader("xy-common-params", "fid=162988201010e62257db56717f42068a3d56cc4cd8f1&device_fingerprint=20210621164233f1abe938f11f4371dad0e9cb3764ef0101e128bc882febd5&device_fingerprint1=20210621164233f1abe938f11f4371dad0e9cb3764ef0101e128bc882febd5&launch_id=1629940903&tz=Asia%2FShanghai&channel=PMgdt9803121&versionName=6.89.0.1&deviceId=2b586458-dd63-3630-b79f-29b88a036ca7&platform=android&sid=session.1629882581793303421285&identifier_flag=4&t=1629947848&project_id=ECFAAF&build=6890179&x_trace_page_current=note_detail_r10&lang=zh-Hans&app_id=ECFAAF01&uis=light")
.addHeader("user-agent", "Dalvik/2.1.0 (Linux; U; Android 10; Redmi Note 8 MIUI/V12.0.2.0.QCOCNXM) Resolution/1080*2340 Version/6.89.0.1 Build/6890179 Device/(Xiaomi;Redmi Note 8) discover/6.89.0.1 NetType/WiFi")
.build();
}
// 第一个初始化函数
public void callinitializeNative(){
List<Object> list = new ArrayList<>(10);
list.add(vm.getJNIEnv()); // 第一个参数是env
list.add(0); // 第二个参数，实例方法是jobject，静态方法是jclazz，直接填0，一般用不到。
module.callFunction(emulator, 0x6c11d, list.toArray());
};
// 第二个初始化函数
public long callinitialize(){
List<Object> list = new ArrayList<>(10);
list.add(vm.getJNIEnv()); // 第一个参数是env
list.add(0); // 第二个参数，实例方法是jobject，静态方法是jclazz，直接填0，一般用不到。
list.add(vm.addLocalObject(new StringObject(vm, "main")));
Number number = module.callFunction(emulator, 0x6b801, list.toArray())[0];
return number.longValue();
}
// 目标函数
public void callintercept(long ptr){
List<Object> list = new ArrayList<>(10);
list.add(vm.getJNIEnv()); // 第一个参数是env
list.add(0); // 第二个参数，实例方法是jobject，静态方法是jclazz，直接填0，一般用不到。
DvmObject<?> chain = vm.resolveClass("okhttp3/Interceptor$Chain").newObject(null);
list.add(vm.addLocalObject(chain));
list.add(ptr);
module.callFunction(emulator, 0x6b9e9, list.toArray());
};
public static void main(String[] args) {
xhs test = new xhs();
test.callinitializeNative();
long ptr = test.callinitialize();
System.out.println("call intercept");
test.callintercept(ptr);
}
@Override
public DvmObject<?> getStaticObjectField(BaseVM vm, DvmClass dvmClass, String signature) {
switch (signature){
case "com/xingin/shield/http/ContextHolder->sLogger:Lcom/xingin/shield/http/ShieldLogger;":{
return vm.resolveClass("com/xingin/shield/http/ShieldLogger").newObject(signature);
}
case "com/xingin/shield/http/ContextHolder->sDeviceId:Ljava/lang/String;":{
return new StringObject(vm, "81e30ab8-2b81-33dd-8435-f9404554b4b5");
}
}
return super.getStaticObjectField(vm, dvmClass, signature);
}
@Override
public void callVoidMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
switch (signature){
case "com/xingin/shield/http/ShieldLogger->nativeInitializeStart()V":{
return;
}
case "com/xingin/shield/http/ShieldLogger->nativeInitializeEnd()V": {
return;
}
case "com/xingin/shield/http/ShieldLogger->initializeStart()V": {
return;
}
case "com/xingin/shield/http/ShieldLogger->initializedEnd()V": {
return;
}
case "com/xingin/shield/http/ShieldLogger->buildSourceStart()V": {
return;
}
case "okhttp3/RequestBody->writeTo(Lokio/BufferedSink;)V": {
BufferedSink bufferedSink = (BufferedSink) vaList.getObjectArg(0).getValue();
RequestBody requestBody = (RequestBody) dvmObject.getValue();
if(requestBody != null){
try {
requestBody.writeTo(bufferedSink);
} catch (IOException e) {
e.printStackTrace();
}
}
return;
}
case "com/xingin/shield/http/ShieldLogger->buildSourceEnd()V": {
return;
}
case "com/xingin/shield/http/ShieldLogger->calculateStart()V": {
System.out.println("calculateStart —— 开始计算");
return;
}
case "com/xingin/shield/http/ShieldLogger->calculateEnd()V": {
System.out.println("calculateEnd —— 结束计算");
return;
}
}
super.callVoidMethodV(vm, dvmObject, signature, vaList);
}
@Override
public DvmObject<?> callStaticObjectMethodV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) {
switch (signature){
case "java/nio/charset/Charset->defaultCharset()Ljava/nio/charset/Charset;":{
return vm.resolveClass("java/nio/charset/Charset").newObject(Charset.defaultCharset());
}
case "com/xingin/shield/http/Base64Helper->decode(Ljava/lang/String;)[B":{
String input = (String) vaList.getObjectArg(0).getValue();
byte[] result = Base64.decodeBase64(input);
return new ByteArray(vm, result);
}
}
return super.callStaticObjectMethodV(vm, dvmClass, signature, vaList);
}
@Override
public int getIntField(BaseVM vm, DvmObject<?> dvmObject, String signature) {
switch (signature){
case "android/content/pm/PackageInfo->versionCode:I":{
return 6970181;
}
}
return super.getIntField(vm, dvmObject, signature);
}
@Override
public int getStaticIntField(BaseVM vm, DvmClass dvmClass, String signature) {
switch (signature){
case "com/xingin/shield/http/ContextHolder->sAppId:I":{
return -319115519;
}
}
return super.getStaticIntField(vm, dvmClass, signature);
}
@Override
public DvmObject<?> callObjectMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
switch (signature) {
case "android/content/Context->getSharedPreferences(Ljava/lang/String;I)Landroid/content/SharedPreferences;":
return vm.resolveClass("android/content/SharedPreferences").newObject(vaList.getObjectArg(0));
case "android/content/SharedPreferences->getString(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;": {
if(((StringObject) dvmObject.getValue()).getValue().equals("s")){
System.out.println("getString :"+vaList.getObjectArg(0).getValue());
if (vaList.getObjectArg(0).getValue().equals("main")) {
return new StringObject(vm, "");
}
if(vaList.getObjectArg(0).getValue().equals("main_hmac")){
return new StringObject(vm, "a9+xPqTwWr7ua8QlDuTyLjvNTAszAxbIhBWeugeCNpcorLQJTUiH6JbLFDrW1cypknldr7izHSeoGQ1HzB6VAVu7iMG6FU1+bEt7/e+9cx6LmeDCOKSapcI9elpXr9ba");
}
}
}
case "okhttp3/Interceptor$Chain->request()Lokhttp3/Request;": {
DvmClass clazz = vm.resolveClass("okhttp3/Request");
return clazz.newObject(request);
}
case "okhttp3/Request->url()Lokhttp3/HttpUrl;": {
DvmClass clazz = vm.resolveClass("okhttp3/HttpUrl");
Request request = (Request) dvmObject.getValue();
return clazz.newObject(request.url());
}
case "okhttp3/HttpUrl->encodedPath()Ljava/lang/String;": {
HttpUrl httpUrl = (HttpUrl) dvmObject.getValue();
return new StringObject(vm, httpUrl.encodedPath());
}
case "okhttp3/HttpUrl->encodedQuery()Ljava/lang/String;": {
HttpUrl httpUrl = (HttpUrl) dvmObject.getValue();
return new StringObject(vm, httpUrl.encodedQuery());
}
case "okhttp3/Request->body()Lokhttp3/RequestBody;": {
Request request = (Request) dvmObject.getValue();
return vm.resolveClass("okhttp3/RequestBody").newObject(request.body());
}
case "okhttp3/Request->headers()Lokhttp3/Headers;": {
Request request = (Request) dvmObject.getValue();
return vm.resolveClass("okhttp3/Headers").newObject(request.headers());
}
case "okio/Buffer->writeString(Ljava/lang/String;Ljava/nio/charset/Charset;)Lokio/Buffer;": {
System.out.println("write to my buffer:"+vaList.getObjectArg(0).getValue());
Buffer buffer = (Buffer) dvmObject.getValue();
buffer.writeString(vaList.getObjectArg(0).getValue().toString(), (Charset) vaList.getObjectArg(1).getValue());
return dvmObject;
}
case "okhttp3/Headers->name(I)Ljava/lang/String;": {
Headers headers = (Headers) dvmObject.getValue();
return new StringObject(vm, headers.name(vaList.getIntArg(0)));
}
case "okhttp3/Headers->value(I)Ljava/lang/String;": {
Headers headers = (Headers) dvmObject.getValue();
return new StringObject(vm, headers.value(vaList.getIntArg(0)));
}
case "okio/Buffer->clone()Lokio/Buffer;": {
Buffer buffer = (Buffer) dvmObject.getValue();
return vm.resolveClass("okio/Buffer").newObject(buffer.clone());
}
case "okhttp3/Request->newBuilder()Lokhttp3/Request$Builder;": {
Request request = (Request) dvmObject.getValue();
return vm.resolveClass("okhttp3/Request$Builder").newObject(request.newBuilder());
}
case "okhttp3/Request$Builder->header(Ljava/lang/String;Ljava/lang/String;)Lokhttp3/Request$Builder;": {
Request.Builder builder = (Request.Builder) dvmObject.getValue();
builder.header(vaList.getObjectArg(0).getValue().toString(), vaList.getObjectArg(1).getValue().toString());
return dvmObject;
}
case "okhttp3/Request$Builder->build()Lokhttp3/Request;": {
Request.Builder builder = (Request.Builder) dvmObject.getValue();
return vm.resolveClass("okhttp3/Request").newObject(builder.build());
}
case "okhttp3/Interceptor$Chain->proceed(Lokhttp3/Request;)Lokhttp3/Response;": {
return vm.resolveClass("okhttp3/Response").newObject(null);
}
}
return super.callObjectMethodV(vm, dvmObject, signature, vaList);
}
@Override
public DvmObject<?> newObjectV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) {
switch (signature){
case "okio/Buffer-><init>()V":
return dvmClass.newObject(new Buffer());
}
return super.newObjectV(vm, dvmClass, signature, vaList);
}
@Override
public int callIntMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
switch (signature){
case "okhttp3/Headers->size()I":
Headers headers = (Headers) dvmObject.getValue();
return headers.size();
case "okhttp3/Response->code()I":
return 200;
case "okio/Buffer->read([B)I":
Buffer buffer = (Buffer) dvmObject.getValue();
return buffer.read((byte[]) vaList.getObjectArg(0).getValue());
}
return super.callIntMethodV(vm, dvmObject, signature, vaList);
}
}
…
我们运行下看下结果：
没得问题，shield已经生成。
部分交流结果：
…
边栏推荐
- Servlet interview questions
- How to use redis to realize the like function
- Simple custom MVC
- Utf8 error in Oracle migration of Jincang Kingbase database
- 可视化HTA窗体设计器-HtaMaker 界面介绍及使用方法,下载 | HTA VBS可视化脚本编写
- 快速排序、聚簇索引、尋找數據中第k大的值
- What is the concept of string in PHP
- How to use vant to realize data paging and drop-down loading
- Simulate activity startup mode in compose
- Software testing skills, JMeter stress testing tutorial, transaction controller of logic controller (25)
猜你喜欢
HOOK Native API
The broadcast module code runs normally in autojs4.1.1, but an error is reported in pro7.0 (not resolved)
Cross domain, CORS, jsonp
Mysql表数据比较大情况下怎么修改添加字段
重磅来袭--UE5的开源数字孪生解决方案
HTA入门基础教程 | VBS脚本的GUI界面 HTA简明教程 ,附带完整历程及界面美化
Auto.js学习笔记16:按项目保存到手机上，不用每次都保存单个js文件，方便调试和打包
约瑟夫环 数学解法
IDEA 远程调试 Remote JVM Debug
Simple custom MVC optimization
随机推荐
设备驱动程序的原理
多卡服务器使用
mysql 主从数据库同步失败的原因
JS conversion of letters and numbers
What is the metauniverse: where are we, where are we going
High paid programmers & interview questions series 63: talk about the differences between sleep (), yield (), join (), and wait ()
Cmake tutorial series-03-dependency management
问题记录：fel_lib.c:26:10: fatal error: libusb.h: 没有那个文件或目录
What kind of foreign exchange trading platform is regulated and safe?
Servlet面试题
How to use redis to realize the like function
Intel-Hex , Motorola S-Record 格式详细解析
Simulate activity startup mode in compose
一篇文章带你入门vim
Shell counts all strings before the last occurrence of a string
Use of custom MVC
华为面试题： 分糖果
HTA introductory basic tutorial | GUI interface of vbs script HTA concise tutorial, with complete course and interface beautification
Utf8 error in Oracle migration of Jincang Kingbase database
GTK interface programming (I): Environment Construction