Android-powered Redmi 8 smartphones are often targeted by malware creators. Users may encounter intrusive advertising, spontaneous application launches, or battery discharge. The virus on Xiaomi Redmi 8 is not always a classic trojan, often an aggressive ad module embedded in the system.
The first signs of infection are unexpected, the screen can go out and light up on its own, and strange messages appear in the notification curtain, in which you need to act quickly to preserve personal data and the normal operation of the device.
In this guide, we will take a look at proven methods of cleaning the system, you will learn how to enter safe mode, find hidden ones. APK-files and, if necessary, complete resetting. MIUI It has built-in protections, but sometimes manual intervention is required to completely eliminate the threat.
Symptoms of infection and primary diagnosis
Before taking drastic measures, it is necessary to accurately identify the problem. smartphone behavior can change gradually or dramatically. Often users confuse system failures with viral activity, but there are clear markers indicating the presence of malicious code.
The main feature is the appearance of banner ads on the desktop or menu, even when the browser is closed, which indicates that the memory is active process responsible for displaying commercial content, and you should also pay attention to the appearance of unknown icons of applications that you did not install.
Letβs look at the main symptoms in more detail:
- π’ Intrusive advertising pops up on top of other windows and blocks control.
- π The battery is discharged in a few hours even in standby mode due to background processes.
- π Internet traffic is consumed abnormally quickly without active user actions.
- π² New apps with Chinese or obscure names appear.
It's important to not ignore the overheating of the case. If the top of the Xiaomi Redmi 8 gets hot in your pocket, then some process is actively using the resources of the processor. It could be a miner or a botnet hiding in the system.
Cleaning through Safe Mode
The most effective way to remove the virus is to run the device in Safe Mode, in which the operating system only loads system components, blocking the launch of all third-party applications, including malicious ones.
To enter this mode on Redmi 8, you need to press the power button. When the off menu appears on the screen, you need to press the "Stop" icon (or "Reset", depending on the version of MIUI) for a long time.
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In Safe Mode, the bottom left corner of the screen will say "Safe Mode" and confirm that third-party apps are disabled and do not interfere with diagnosis.
After restarting, follow the following steps:
- π Go to Settings. β Annexes β All applications.
- ποΈ Find suspicious programs without icons or with strange names.
- π« Click βDeleteβ for all unnecessary or unknown applications.
Often viruses disguise themselves as system processes, such as Android System or Flash Player. If an application does not have a logo or its name consists of a set of characters, this is a sure sign of a threat. Deleting in safe mode is normal, because the virus cannot start its defense mechanism.
β οΈ Note: Some viruses have device administrator rights. If the Delete button is inactive, go to Settings first. β Passwords and security β Confidentiality β Device administrators and uncheck the suspicious item.
Search for hidden APK-file-cleaning
Even after the application is deleted, the installation file (.apk) can remain in memory, allowing malicious reinstall code to be reinstalled the next time you start a browser or open a file, and you need to do a deep cleanup of the file system.
Use the built-in Explorer app or download a robust file manager from Google Play.You need to sort files by date of change and pay attention to the Installation Packages section or Download pack.
βοΈ File system verification
Please note the table of common places of storage of malicious files:
| Location. | File type | Action. |
|---|---|---|
| /storage/emulated/0/Download | .apk | Delete |
| /storage/emulated/0/Android/data | Folders with garbage | Clean up |
| /storage/emulated/0/MIUI/debug_log | Logs. | Can be removed |
| /storage/emulated/0/Tencent | Cash messengers | Careful, selectively clean. |
Remember to clear your browser cache. Often, it is through the browser on Redmi 8 that advertising software penetrates. Go to the settings of Chrome or another browser used, look for Privacy, and select Clear History and Clear Cache.
Use of antivirus scanners
An antivirus built into MIUI from Avast or Tencent is good for basic protection, but specialized scanners can find what the system missed. For deep verification, it is recommended to use tools such as Malwarebytes, Dr.Web Light or Kaspersky Internet Security.
Installation of third-party antivirus should only be done from the official Google Play Store. Avoid downloading "antivirus" from pop-up windows in the browser - this is often a trap that will install another virus instead of treatment.
Why can the built-in antivirus be silent?
The verification process is as follows:
- π₯ Install the selected antivirus scanner.
- π Update the virus database to the latest version.
- βΆοΈ Start a full system and memory scan.
If the antivirus finds a threat, follow its recommendations for quarantine or removal. After cleaning, it is advisable to remove the antivirus itself, unless you plan to use it constantly, so as not to waste the resources of Redmi 8 RAM.
Resetting to factory settings (Hard Reset)
If none of the above methods work, the last and most radical option is a complete reset, which removes absolutely all data from the internal drive, including photos, contacts and applications, so a preliminary backup is required.
Resets can be done through the settings menu if the phone is turned on, or through Recovery mode if the system is loading with errors. In the Recovery menu, the navigation is done with volume buttons, and the choice is confirmed by the power button.
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Wipe Data is the only way to guarantee the removal of a virus that has entered the system partition that cannot be removed by conventional methods.
Procedure for resetting through Recovery:
1. Turn off the smartphone completely.
2. Press the Volume + button and Power at the same time.
3. Hold until the Mi logo appears, then release the power, leaving the volume.
4. From the menu, select the language (English) and click Wipe Data β Wipe All Data.
β οΈ Warning: After reset, the phone will look like new. Make sure you remember the password from your Mi Account and Google account, otherwise activation of the device will not be possible due to security. FRP (Factory Reset Protection).
Prevention and protection in the future
After a successful cleanup of Redmi 8, it is important to prevent re-infection. The main source of viruses is the actions of the user. Install applications from unknown sources (APK-Forum or torrent files are the most at risk.
The MIUI security settings have a Device Protection feature, make sure it is activated and the databases are updated, and you should also disable the ability to install applications from unknown sources for browsers and instant messengers.
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Make a rule: never click "Allow" in requests to send notifications from suspicious sites.
Follow the simple rules of digital hygiene:
- π‘οΈ Do not follow the links in SMS from unknown numbers.
- π² Download apps only from Google Play.
- π Regularly update your Android system and apps.
- π Do not connect your phone to other peopleβs computers without needing to.
Regularly checking the list of installed applications will help you notice the intrusion in time, and if you see a program that you rarely use or do not remember, you should delete it immediately.