Mobile Security & Antivirus v9.3.00.00
APK · 20.5 MB · version code 581 · Android 4.4+ · uploaded Aug 23, 2021
- Same certificate as v9.5.30.00, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v9.5.30.00, uploaded Jul 30, 2026 — about 4 years after this one.
- Size: this file is 20.5 MB; the latest is 38.4 MB (17.9 MB larger).
- Android: this version needs Android 4.4+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
- The latest version asks for 10 more permissions: Access adservices ad id, Access adservices attribution, Access adservices topics, Package usage stats, Show notifications, Read basic phone state, Android get installed apps (custom), Google Play license check….
- The latest version no longer asks for: Request installing other apps, Use full screen intent.
File information
- Version
- v9.3.00.00 (581)
- Uploaded
- Aug 23, 2021
- Size
- 20.5 MB
- Requires
- Android 4.4+ (API 19)
- CPU support
- ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 2100893fcf166590923c1a4e2c2369e8
- Signing certificate (SHA-1)
- 02:DC:79:CD:1D:72:01:47:2A:1D:8D:87:08:FA:E8:60:43:C4:9F:DC
- Signed by
- CN=netqin, OU=netqin, O=netqin, L=beijing, ST=beijing, C=CN
- File name
- com-nqmobile-antivirus20-581-59082763-2100893fcf166590923c1a4e2c2369e8.apk
- Package
- com.nqmobile.antivirus20
- Downloads (all versions)
- 10M+
- Age rating
- PEGI 3 · Everyone
What's new in v9.3.00.00
Support Android 11
General fixes and stability improvements.
Permissions (42)
This version requests 42 permissions, 7 of them sensitive.
- Access all files Sensitive android.permission.MANAGE_EXTERNAL_STORAGE
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Request installing other apps Sensitive android.permission.REQUEST_INSTALL_PACKAGES
- See all installed apps Sensitive android.permission.QUERY_ALL_PACKAGES
- Access download manager android.permission.ACCESS_DOWNLOAD_MANAGER
- Access superuser android.permission.ACCESS_SUPERUSER
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Antivirus20 anti virus (custom) com.nqmobile.antivirus20.permission.ANTI_VIRUS
- Browser read history bookmarks (custom) com.android.browser.permission.READ_HISTORY_BOOKMARKS
- Change configuration android.permission.CHANGE_CONFIGURATION
- Change network state android.permission.CHANGE_NETWORK_STATE
- Change wifi state android.permission.CHANGE_WIFI_STATE
- Clear app cache android.permission.CLEAR_APP_CACHE
- Control vibration android.permission.VIBRATE
- Data (custom) com.netqin.callblocker.insert.private.data
- Delete cache files android.permission.DELETE_CACHE_FILES
- Expand status bar android.permission.EXPAND_STATUS_BAR
- Force stop packages android.permission.FORCE_STOP_PACKAGES
- Full network access android.permission.INTERNET
- Get package size android.permission.GET_PACKAGE_SIZE
- Get tasks android.permission.GET_TASKS
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Kill background processes android.permission.KILL_BACKGROUND_PROCESSES
- Launcher read settings (custom) com.android.launcher.permission.READ_SETTINGS
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Mount unmount filesystems android.permission.MOUNT_UNMOUNT_FILESYSTEMS
- Payment broadcast permission (custom) com.nqmobile.antivirus20.mobiamo.PAYMENT_BROADCAST_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read logs android.permission.READ_LOGS
- Remove home-screen shortcuts com.android.launcher.permission.UNINSTALL_SHORTCUT
- Request delete packages android.permission.REQUEST_DELETE_PACKAGES
- Restart packages android.permission.RESTART_PACKAGES
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Use credentials android.permission.USE_CREDENTIALS
- Use full screen intent android.permission.USE_FULL_SCREEN_INTENT
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “netqin” This is the certificate of the Google Play version.
- Same certificate as v9.5.30.00, which matches Google Play v9.5.30.00 · v9.5.28.01 · v9.5.28.00 · v9.5.26.00
Store checks
- Developer signature not verified Nov 13, 2021
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install Mobile Security & Antivirus on Android 4.4+
You'll need about 41 MB of free space.
- Download the APK — tap Download APK above (20.5 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-nqmobile-antivirus20-581-59082763-2100893fcf166590923c1a4e2c2369e8.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 2100893fcf166590923c1a4e2c2369e8. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Mobile Security & Antivirus — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.4+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.