Xiaomi’s current smartphones are powered by Android, which is known for being open but also vulnerable to malware. Users often find themselves in a situation where the device starts to behave strangely: the battery runs out in a couple of hours, intrusive banner ads appear, and apps open on their own, the first signals that unwanted code has settled in the system that requires immediate intervention.
Don't panic if you notice these symptoms. Most of the time, it's not complicated spyware, but aggressive advertising or miners that you can remove yourself. The key is to get the right diagnosis, because some viruses can hide from standard defenses and disguise themselves as system processes.
In this article, we will look at proven methods for detecting threats, from built-in MIUI tools to third-party scanners. You will learn how to find hidden applications that do not appear in the menu, and what actions you need to take if a virus blocks the operation of the interface. Careful study of the instructions will allow you to return the gadget to normal operation without going to the service center.
Primary signs of system infection
Before you run complex scanners, it’s worth analyzing the behavior of your Xiaomi smartphone. Malware often manifests itself through performance declines and strange network activity. If you notice that the phone warms even in downtime, this may indicate the operation of a hidden miner or a process that constantly transmits data.
And you should pay special attention to pop-up ads, and if banners appear on your desktop or on top of other apps, it's a sure sign that you have an adware virus, and often they're disguised as useful tools like flashlights, scanners. QR-Deleting such threats requires finding a specific culprit application in the list of installed programs.
⚠️ Warning: If a lock screen or browser has messages about a police locking device or a request to transfer money to unlock it is fake, no government authorities block phones in this way.
It's also worth checking traffic consumption. Viruses can use your Internet connection to send spam or participate in botnets. A sharp rise in traffic consumption in the background is an alarm bell. Check the statistics in the settings to find the application that consumes the most megabytes.
- 📉 Sharp drop in performance and long interface responses.
- 🔋 Fast battery discharge and heating the body without load.
- 📢 Intrusive advertising in unexpected places of the system.
- 🌐 Unexplained Mobile Traffic Consumption.
Understanding the nature of the threat helps you choose the right method of combating it, and if the phone is just slowing down, it may be a problem with a crowded memory, not a virus, but a combination of several symptoms almost always indicates the presence of malware that needs to be neutralized.
Use of the built-in antivirus Security
The MIUI and the new HyperOS are already pre-installed with a powerful security tool, the Security app, developed in collaboration with antivirus engines Avast and AVL, which provides a high level of detection of known threats, and this tool is often enough to initially check.
To start scanning, look for a green icon with a shield on your desktop. Select the Antivirus section inside the menu. The system will automatically start checking installed applications and system files for known virus signatures. The process can take several minutes depending on the amount of data.
Menu: Settings → About phone → All settings → MIUI versionIt's important to update the virus databases in this app regularly, and click on the gear in the top right corner of the scanner screen and select "Update Virus Base" to ensure that the antivirus engine can recognize the latest threats that have emerged recently, and without the update, the effectiveness of the scan is greatly reduced.
☑️ Checking with built-in antivirus
If the built-in scanner finds a threat, it will prompt it to be removed immediately, which in most cases solves the problem, but some advanced viruses can block or hide from the security application itself, and then we need to move to deeper analysis methods.
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Enable the “Real-Time Protection” feature in the Security app settings to block the installation of malicious applications before they get to the system.
Search for hidden virus applications manually
Some malware masks itself without an icon in the app menu, or uses the name of the system process. To find them, go to the full program management menu. Go to Settings → Apps → All applications.
You have to scrolle through the list carefully, look for apps with no name or an empty icon, and often viruses are hidden at the bottom of the list or called system services like System Service or Update Service, but with a suspicious logo, and removing them is the first step to cleaning up.
If you can't find a suspicious app on the list, try sorting it by installation time. Think back to when the phone started having problems, and see what was discovered during that period. Often, the user accidentally installs the malicious app himself. APK-A file downloaded from an unverified source.
| Sign. | Normal appendix | Virus/Hidden Software |
|---|---|---|
| Icon | Clear, matching the name | Absent, white or standard android |
| Name of name | Understandable (Instagram, WhatsApp) | System or System (System, Service) |
| Size | Complies with the functionality | It may be minimal or abnormally large. |
| Permits | Logical for function | Requesting access to SMS, contacts, calls |
Pay attention to access rights. If a simple calculator or flashlight requires access to your contacts, SMS and location, it's 100% malware, immediately take away all permissions from such an application and delete it.
What to do if the "Delete" button is inactive?
Analysis through Safe Mode
If a virus blocks your phone, prevents you from opening your settings, or constantly displays ads, standard methods may not work, and Safe Mode will help, in which mode the smartphone only runs with system applications, making the virus inactive.
To enter Safe Mode on Xiaomi, you usually need to press the power button, and when the turn off menu appears, press the "Stop" option (or "Reboot", depending on the version of MIUI) for a long time.
When you're in Safe Mode, the phone will be slower, and there'll be a sign in the corner of the screen, so you can go to the app settings and delete what you haven't deleted before, and you can do a re-scan with the antivirus, which will now pass without any malware interference.
- 🔒 Blocks the launch of all third-party applications.
- 🛡️ Allows you to remove viruses that block the system.
- 🔍 Helps to determine if the problem is software.
Once you remove any suspicious items, just restart your phone in the normal way, and the device will return to normal, but no viruses, and if the problem persists even after that, then the threat is deeply integrated into the system.
⚠️ Warning: Safe Mode will not work on your regular apps, widgets, and some interface features. That's OK. Don't be intimidated by the changed desktop look.
Checking with third-party antivirus scanners
Built-in protections are good, but sometimes a second opinion is required. For deep verification, you can use reputable third-party antiviruses such as Dr.Web Light, Kaspersky or Malwarebytes. These programs specialize in finding complex threats that standard scanners miss.
Only download antivirus software from the official Google Play Market Store, and installing scanners from third-party sources can lead to infection with an even more serious virus, and then run a full scan of the system, which can take up to 15-20 minutes.
Third-party antiviruses often have an Anti-Virus function and link checker. If a virus is sitting in a browser, the web protection module will help identify malicious sites from which the software was downloaded. After cleaning, you do not need to keep the antivirus on all the time, if you are sure of the security of your actions.
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Using two different antivirus engines (embedded and third-party) greatly increases the chances of detecting complex and disguised threats.
After a full check and cleaning, it is recommended to remove the third-party antivirus so as not to waste battery and RAM resources.
Radical measures: Resetting to factory settings
If none of the methods helped to find and remove the virus, or if the system is unstable even after cleaning, the last and most reliable option is a complete reset to the factory settings (Hard Reset), which will completely destroy all data on the phone, including viruses.
Before starting the procedure, be sure to save important contacts, photos and documents to your computer or to the cloud storage (for example, Google Drive or Mi Cloud). After reset, you can only recover files from a backup. Make sure that the battery is at least 50%.
To perform the reset, go to Settings → About Phone → Settings Reset → Erase All Data. The system will alert you to loss of information. Confirm the action and wait for the process to complete. The phone will reboot and look like a new one just out of the box.
Path to reset: Settings -> About Phone -> Reset -> Erase all dataOnce turned on, take your time to restore all the apps from Google backup. Watch the clean phone first. If it works properly, install the apps gradually, checking their behavior, and this will help avoid re-entry of the virus if a copy of it is saved in the backup.
⚠️ Attention: All data is completely deleted: photos, contacts, correspondence in the WhatsApp/Telegram (If you don't have a separate backup, setups. Make sure you keep everything important!
Prevention of re-infection
Once a successful cleanup is done, it is important to maintain digital hygiene so that you don't run into the problem again. The main source of Android viruses is installing applications from unknown sources. APK-files from the browser included.
Update your operating system regularly. MIUI updates and Android security patches address vulnerabilities that viruses can penetrate your phone. Don't ignore notifications about available updates in the Settings → About Phone menu.
- 🚫 Do not go over the dubious links in SMS messenger.
- 📲 Download apps only from Google Play Market.
- 🔒 Do not give applications unnecessary permissions (access to the app). SMS, call).
- 🔄 Regularly update the system and applications.
Compliance with these simple rules ensures the security of your data. Xiaomi phone is a reliable device, and if used correctly, it will last a long time without malware problems. Be vigilant and do not trust suspicious sites promising “phone speed” or “free premium”.