Tablets on Android have become an integral part of everyday life life: from working with documents to watching movies and online banking. But along with convenience comes the risk of malware infection. Viruses on Android tablets can steal passwords, show annoying ads, slow down your device, or even block access to files. According to research Kaspersky, in 2023, every fifth mobile gadget faced at least one cyber attack.

The problem is that many users do not know how to do it correctly check the tablet for viruses. Some rely only on built-in protection tools (which are often useless against modern threats), others download the first available antivirus from Google Play, risking running into a fake. In this article we will analyze 5 proven diagnostic methodsincluding manual scanning without apps, analysis through anti-virus scanners and methods for removing found threats. You will learn what symptoms indicate infection, how to distinguish a virus from system failures, and what to do if the tablet is already infected.

Signs of a tablet being infected with viruses

Before looking for viruses, you need to understand do they exist at all? Many symptoms of “infection” are actually related to system overloadoutdated firmware or unoptimized applications. However, there are key markersthat should alert you:

  • 🔋 Rapid battery drain - if the tablet is discharged within a few hours without active use, there may be malware, a cryptocurrency miner or spyware running in the background.
  • 🐢 Slowdown - lags when opening applications, long system loading times or sudden freezes may indicate background virus processes.
  • 📱 Spontaneous actions - if the tablet opens the browser on its own, sends SMS, installs applications or displays advertising, this is a sure sign of an adware (adware) or Trojan.
  • 💰 Unauthorized payments - debits from a bank card linked to Google Pay, or purchases in games that you did not make, indicate data theft.
  • 🔒 Device blocking — if the tablet requires payment for “unlocking” or shows a message from the “FSB/police”, it is ransomware (ransomware).

Important: some symptoms may be a consequence full memory or outdated version of Android. Before checking for viruses, clear the cache and update the system through Settings → System → Software update.

⚠️ Attention: If the tablet starts to overheat for no apparent reason, this may be a sign of how a miner virus or a hardware malfunction (for example, a swollen battery). In the latter case, immediately disconnect the device from charging!

Method 1: Scan through built-in Android tools

Google Play Protect is a standard security tool that automatically scans installed applications for threats. However, its effectiveness is limited: it does not always detect new viruses or rootkits. However, it is worth starting the check with it.

How to start scanning:

  1. Open Google Play Store.
  2. Click on the profile icon in the upper right corner.
  3. Select Play Protect → Scan.
  4. Wait for the scan to complete (usually takes 1-2 minutes).

If Play Protect found threats, it will offer to remove malicious applications. But be aware: this tool often misses adware (adware viruses) and spywaredisguised as legitimate apps (for example, flashlights or optimizers).

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If in the list of threats you see applications that you did not install (for example, com.system.update or android.secure.service), this is almost certainly a virus. Remove them immediately!

Threat type Can it be detected Play Protect? What to do if found
Adver (adware) Rare Delete the application and clear the cache browser
Trojan virus Sometimes Delete + change account passwords
Spyware Almost never Delete + check permissions of other applications
Rootkit No Requires a full reset or flashing

Method 2: Manual scanning without antivirus

If you do not want to install additional apps, you can check the tablet for viruses manually. This method requires. care, but helps to identify suspicious applications and processes.

Step 1: Checking the list of installed applications

  • Go to Settings → Applications → All applications.
  • Pay attention to apps with unfamiliar names (for example, com.android.system.update, service.secure.android).
  • Check the installation date: if the application appeared by itself, it is suspicious.

Step 2: Analyze battery and traffic consumption

  • Open Settings → Battery → Battery usage.
  • See which applications consume the most energy. Unknown apps at the top of the list are a cause for concern.
  • Similarly, check your mobile traffic consumption in Settings → Network and Internet → Data transfer.

Step 3: Checking rights administrator

  • Go to Settings → Security → Device Administrators.
  • If there are unknown applications with administrator rights here, it may be a virus blocking removal.
  • Uncheck suspicious apps and uninstall them.

Sort applications by installation date|Check top battery consumers|Uninstall apps with administrator rights|Clear browser cache-->

⚠️ Attention: Some viruses disguise themselves as system processes (for example, Google Services or Android System). if you are not 100% sure! It is better to first check the name of the process by searching in Google.

Method 3: Using third-party antiviruses

Built-in tools Android do not always cope with modern threats, so for in-depth scanning it is better to use specialized ones antiviruses. However, not all apps from Google Play are equally useful: some themselves contain advertising modules or collect user data.

Top 3 proven antiviruses for Android tablets:

  • 🛡️ Bitdefender Mobile Security - a lightweight scanner with a high level of threat detection (there is a free one) version).
  • 🔍 Kaspersky Internet Security —effective against spyware and banking Trojans (paid subscription after the trial period).
  • 📱 Malwarebytes —specializes in adware and potentially unwanted apps (PUPs).

How to check your tablet using an antivirus:

  1. Download the selected one application from Google Play (not from third-party sites!).
  2. Run a full scan (not a quick one!). This may take 10-30 minutes.
  3. Delete or quarantine all detected threats.
  4. Reboot tablet.

Important: after scanning, check Settings → Accessibility. Some viruses add themselves to the list of accessibility services to start every time you turn on the screen.

Bitdefender|Kaspersky|Malwarebytes|Dr.Web|I don’t use an antivirus|Other-->

Method 4: Scan via PC (for experienced users)

If the tablet is heavily infected and does not respond to commands, you can scan it via a computer. USB debugging and is suitable for users familiar with ADB (Android Debug Bridge).

Step-by-step guide:

  1. Enable Developer mode on the tablet: go to Settings → About phone 7 times click on Build number.
  2. Return to Settings → System → For Developers and activate USB debugging.
  3. Connect the tablet to the PC via a USB cable (use the original cable for a stable connection).
  4. Download and install on your PC ADB Tools (for example, Minimal ADB and Fastboot).
  5. Open the command line (Win + R → cmd) and enter: 
    adb devices

    Make sure that the device is detected.

  6. Run a scan via ADB using an antivirus for PC (for example, Avast or ESET NOD32), selecting the option to scan connected devices.

The advantage of this method is that antivirus on a PC often has a more extensive signature base than mobile versions. However, not all. viruses can be detected in this way, especially if they are deeply integrated into the system.

⚠️ Attention: USB debugging allows access to the tablet's system files. Never connect the device to other people's computers or public USB ports (for example, at airports) to avoid data theft!

Method 5: Reset to factory settings (extreme option) measure)

If none of the methods helped, and the tablet still behaves suspiciously, the last option remains - Full reset (hard reset). This will delete all data, including viruses, but it will also erase photos, contacts and installed applications. Before resetting, be sure to back up your important files!

How to reset your tablet:

  1. Go to Settings → System → Reset settings.
  2. Select Delete all data (factory reset).
  3. Confirm the action (you may need to enter a pattern or password).
  4. Wait for the process to complete (the tablet will reboot several times).

After a reset:

  • Do not restore data from a backup if it was created after infection —viruses may return.
  • Install an antivirus to recovery applications.
  • Update Android to the latest version via Settings → System → Software update.
What to do if the viruses returned after the reset?

If viruses appeared again, this means that they were built into the firmware (for example, through infected software from the manufacturer) or into the recovered data. In this case:

1. Install custom firmware (for example, LineageOS), if your tablet is supported.

2. Do not restore backups created before the reset.

3. Contact the service center - you may need to flash it through SP Flash Tool or similar utilities.

How to protect your tablet from viruses in the future

The best protection is prevention. By following simple rules, you will reduce the risk of infection by 90%:

  • 🔒 Install applications only from Google Play —avoid third-party APK files, especially from torrent trackers.
  • 📱 Update Android and applications —many viruses exploit vulnerabilities in outdated software versions.
  • 🛡️ Use an antivirus with real protection (not just a scanner), for example Bitdefender or Kaspersky.
  • 🔍 Check application permissions —if the flashlight asks for access to SMS or contacts, this is suspicious.
  • 🌐 Do not connect to public Wi-Fi without a VPN — attackers can intercept data.
  • 📧 Do not open links and attachments in letters from unknown senders —even if the letter looks like it is from a bank.

Additional advice: if If you often install APK files from the Internet, use the service VirusTotal to pre-check the files. Upload the APK to the site, and it will show whether antivirus apps detect threats in it.

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Even legitimate applications from Google Play may contain advertising modules or collect more data than necessary. Regularly check the permissions of installed apps in Settings → Applications → Permissions.

FAQ: Frequently asked questions about viruses on Android tablets

Can a tablet become infected with a virus via Bluetooth or Wi-Fi?

Theoretically yes, but in practice such cases extremely rare. Most viruses are spread through:

  • Installation of infected APK files;
  • Phishing links in SMS or instant messengers;
  • Vulnerabilities in outdated versions of Android.

Bluetooth and Wi-Fi can be exploited for an attack only if USB debugging is enabled on the tablet or there are critical vulnerabilities in the firmware (for example, as was the case with the virus BlueBorne in 2017).

How to remove a virus if it blocks the installation of an antivirus?

If a virus blocks access to Google Play or installing antiviruses, try:

  1. Download the APK of the antivirus (for example, Malwarebytes) to another gadget and transfer it to the tablet via USB or cloud storage.
  2. Install the antivirus in safe mode (press and hold power button → hold “Power off” → select “Safe Mode”).
  3. Use ADB to remove the virus via PC (see Method 4).

If all else fails, the only option is a factory reset settings.

Can viruses damage the hardware of the tablet?

No, viruses cannot physically damage the processor, screen or battery. However, they can:

  • Lead to overheating due to maximum load on the CPU (for example, cryptocurrency mining);
  • Accelerate battery wear due to constant activity in the background;
  • Disable it firmwareif the virus modifies system files (solved by flashing).

If the tablet begins to overheat or discharge quickly after infection, check it at the service center center - you may need to replace the thermal paste or battery.

How to check the tablet for viruses if it does not turn on?

If the tablet does not turn on or loads only up to the logo, try:

  1. Boot into recovery mode (usually hold down Power + Volume up when turning on) and do wipe cache partition.
  2. Connect the tablet to the PC and scan via ADB (if the device is detected).
  3. Reflash the tablet via SP Flash Tool or Odin (for Samsung), if you have experience.

If these methods do not help, contact a service center - perhaps the problem is not a virus, but a hardware malfunction.

What are the most dangerous viruses for Android in 2026?

According to Kaspersky, in 2026 the greatest threat is posed by:

  • Banking Trojans (Anubis, Cerberus) - they steal bank card and SMS data.
  • Rootkits (Triada, Zygote) - infiltrate system processes and disguise themselves as legitimate services.
  • Ransomware (WannaLocker) - encrypt files and demand ransom.
  • Spyware (Pegasus, Hermit) - monitors location, calls and messages.
  • Cryptocurrency miners (Loapi- use tablet resources to mine cryptocurrency.

Devices with outdated versions of Android (below 10th) and tablets are especially vulnerable with root access.