diff --git a/hook/.gitignore b/hook/.gitignore
new file mode 100644
index 000000000..42afabfd2
--- /dev/null
+++ b/hook/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/hook/build.gradle b/hook/build.gradle
new file mode 100644
index 000000000..7ba6b50f3
--- /dev/null
+++ b/hook/build.gradle
@@ -0,0 +1,13 @@
+plugins {
+    id 'com.android.library'
+}
+
+android {
+    namespace 'com.fongmi.hook'
+    compileSdk 33
+
+    defaultConfig {
+        minSdk 21
+        targetSdk 28
+    }
+}
\ No newline at end of file
diff --git a/hook/src/main/AndroidManifest.xml b/hook/src/main/AndroidManifest.xml
new file mode 100644
index 000000000..568741e54
--- /dev/null
+++ b/hook/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest />
\ No newline at end of file
diff --git a/hook/src/main/java/com/fongmi/hook/Handler.java b/hook/src/main/java/com/fongmi/hook/Handler.java
new file mode 100644
index 000000000..42154096e
--- /dev/null
+++ b/hook/src/main/java/com/fongmi/hook/Handler.java
@@ -0,0 +1,38 @@
+package com.fongmi.hook;
+
+import android.content.pm.PackageInfo;
+import android.content.pm.Signature;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+
+public class Handler implements InvocationHandler {
+
+    private String sign;
+    private Object base;
+    private String pkg;
+
+    public Handler(Object base, String sign, String pkg) {
+        try {
+            this.base = base;
+            this.sign = sign;
+            this.pkg = pkg;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        if ("getPackageInfo".equals(method.getName())) {
+            String pkgName = (String) args[0];
+            Number flag = (Number) args[1];
+            if (flag.intValue() == 64 && this.pkg.equals(pkgName)) {
+                PackageInfo info = (PackageInfo) method.invoke(this.base, args);
+                info.signatures[0] = new Signature(sign);
+                return info;
+            }
+        }
+        return method.invoke(this.base, args);
+    }
+}
\ No newline at end of file
diff --git a/hook/src/main/java/com/fongmi/hook/Hook.java b/hook/src/main/java/com/fongmi/hook/Hook.java
new file mode 100644
index 000000000..169cc2fc6
--- /dev/null
+++ b/hook/src/main/java/com/fongmi/hook/Hook.java
@@ -0,0 +1,31 @@
+package com.fongmi.hook;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+
+public class Hook {
+
+    public static void pm(Context context, String sign) {
+        try {
+            Class<?> activityThreadClass = Class.forName("android.app.ActivityThread");
+            Method currentActivityThreadMethod = activityThreadClass.getDeclaredMethod("currentActivityThread", new Class[0]);
+            Object currentActivityThread = currentActivityThreadMethod.invoke(null, new Object[0]);
+            Field sPackageManagerField = activityThreadClass.getDeclaredField("sPackageManager");
+            sPackageManagerField.setAccessible(true);
+            Object sPackageManager = sPackageManagerField.get(currentActivityThread);
+            Class<?> iPackageManagerInterface = Class.forName("android.content.pm.IPackageManager");
+            Object proxy = Proxy.newProxyInstance(iPackageManagerInterface.getClassLoader(), new Class[]{iPackageManagerInterface}, new Handler(sPackageManager, sign, context.getPackageName()));
+            sPackageManagerField.set(currentActivityThread, proxy);
+            PackageManager pm = context.getPackageManager();
+            Field mPmField = pm.getClass().getDeclaredField("mPM");
+            mPmField.setAccessible(true);
+            mPmField.set(pm, proxy);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/tvbus/build.gradle b/tvbus/build.gradle
index a3fd7cbb8..b405dc13c 100644
--- a/tvbus/build.gradle
+++ b/tvbus/build.gradle
@@ -14,5 +14,6 @@ android {
 }
 
 dependencies {
+    implementation project(':hook')
     implementation project(':catvod')
 }
\ No newline at end of file