# QR & Barcode Scanner

状态：active
Platform：android
Package：com.gamma.scan
Version：2.2.221
Opportunity：2026-06-10-qr-barcode-scanner

## 摘要

- 包类型：xapk，inner APK 数：20
- 引擎 / 框架：native
- SDK 线索：admob, firebase
- Endpoint candidates：6
- 结论口径：本报告只基于静态 ZIP / Manifest / 字符串证据；不代表真实运行路径已验证。

## 直接证据

- [high] Manifest package id is com.gamma.scan（source: `AndroidManifest.xml`，status: `verified`）
- [high] Manifest declares 18 permissions（source: `AndroidManifest.xml`，status: `verified`）
- [high] Engine/framework markers: native（source: `APK file inventory`，status: `verified`）
- [high] Static strings include 6 endpoint candidates（source: `Text/string scan`，status: `verified`）
- [high] Package contains 4 native libraries（source: `APK file inventory`，status: `verified`）

## 推断

- [medium] SDK markers suggest: admob, firebase（source: `Manifest, filenames, and text strings`，status: `inferred`）

## 权限和组件

### 权限

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.CHANGE_WIFI_MULTICAST_STATE`
- `android.permission.CHANGE_WIFI_STATE`
- `android.permission.FLASHLIGHT`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.gamma.scan.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`

### 组件

- Activities：com.example.mybrowser.BrowserActivity, com.facebook.ads.AudienceNetworkActivity, com.gamma.barcodeapp.ui.BarcodeCaptureActivity, com.google.android.gms.ads.AdActivity, com.google.android.gms.ads.NotificationHandlerActivity, com.google.android.gms.ads.OutOfContextTestingActivity, com.google.android.gms.common.api.GoogleApiActivity, com.google.android.play.core.common.PlayCoreDialogWrapperActivity, com.vungle.ads.internal.ui.VungleActivity
- Services：androidx.camera.core.impl.MetadataHolderService, androidx.room.MultiInstanceInvalidationService, androidx.work.impl.background.systemalarm.SystemAlarmService, androidx.work.impl.background.systemjob.SystemJobService, androidx.work.impl.foreground.SystemForegroundService, com.google.android.datatransport.runtime.backends.TransportBackendDiscovery, com.google.android.datatransport.runtime.scheduling.jobscheduling.JobInfoSchedulerService, com.google.android.gms.ads.AdService, com.google.android.gms.measurement.AppMeasurementJobService, com.google.android.gms.measurement.AppMeasurementService, com.google.firebase.components.ComponentDiscoveryService, com.google.mlkit.common.internal.MlKitComponentDiscoveryService
- Receivers：androidx.profileinstaller.ProfileInstallReceiver, androidx.work.impl.background.systemalarm.ConstraintProxy$BatteryChargingProxy, androidx.work.impl.background.systemalarm.ConstraintProxy$BatteryNotLowProxy, androidx.work.impl.background.systemalarm.ConstraintProxy$NetworkStateProxy, androidx.work.impl.background.systemalarm.ConstraintProxy$StorageNotLowProxy, androidx.work.impl.background.systemalarm.ConstraintProxyUpdateReceiver, androidx.work.impl.background.systemalarm.RescheduleReceiver, androidx.work.impl.diagnostics.DiagnosticsReceiver, androidx.work.impl.utils.ForceStopRunnable$BroadcastReceiver, com.google.android.datatransport.runtime.scheduling.jobscheduling.AlarmManagerSchedulerBroadcastReceiver, com.google.android.gms.measurement.AppMeasurementReceiver
- Providers：androidx.core.content.FileProvider, androidx.startup.InitializationProvider, com.facebook.ads.AudienceNetworkContentProvider, com.gamma.android.history.provider.QrsProvider, com.google.android.gms.ads.MobileAdsInitProvider, com.google.firebase.provider.FirebaseInitProvider, com.google.mlkit.common.internal.MlKitInitProvider, com.vungle.ads.VungleProvider

## SDK / Endpoint

### SDK

- `admob`
- `firebase`

### Endpoint candidates

- http://www.apache.org/licenses/
- http://code.google.com/p/zxing
- http://zxing.appspot.com/generator/
- http://www.jacoco.org/jacoco
- http://tizen.org/system/model_name
- http://tizen.org/feature/platform.version

## Warnings

- apktool manifest decode skipped 19 split APK(s)
- binary AndroidManifest.xml decoded with apktool

## 下一步

- 真机/模拟器验证 onboarding、paywall、首个可感知价值和崩溃路径。
- 把 endpoint candidates 与 HAR / MITM / Frida 动态证据对齐，避免只凭静态字符串下结论。
- 多版本对比权限、SDK、endpoint、native libs 和资源路径变化。
- 订阅/广告 SDK 线索存在，后续需拆 paywall、free trial、退款和广告频率。