How to remove a virus from a Xiaomi phone: an expert guide

The sudden appearance of intrusive advertising, rapid battery discharge or unexplained write-offs are alarming signals that indicate that your smartphone may have been infected with malware. The Android operating system, which runs the shell MIUI or HyperOS, has powerful built-in protection mechanisms, but attackers are constantly improving methods of attack. Often users do not even suspect that they have installed a parasite application masquerading as a system utility or a useful tool.

You don't have to panic in this situation, because you can do it right without losing your identity. Most of the time, you can get rid of the problem app or clean up your browser cache, but sometimes you need to do a lot more in-depth, and you need to be consistent and not skip the diagnostic steps to make sure that you're completely secure your device.

In this article, we will look at proven methods for detecting and eliminating viruses on Xiaomi, Redmi and POCO smartphones. You will learn how to distinguish a system failure from a real threat, what tools to use for scanning and how to prevent re-infection in the future.

Symptoms of infection: how to distinguish a virus from a system failure

The first step to recovery is to diagnose the device correctly; it is not always the strange behavior of the smartphone that indicates the presence of malicious code; sometimes the cause of problems is overcrowded memory, conflicting applications or hardware malfunctions; however, there are a number of signs that are likely to indicate viral activity.

Notice that banner ads appear on your desktop or in system windows where they shouldn't be. If the screen lights up on its own and unknown admin programs appear on the list of running processes, this is a clear sign of system compromise, and you should also be wary if traffic is consumed abnormally quickly even in standby mode.

There are several key indicators by which a threat can be identified:

• 📉 A sharp drop in autonomy: the battery discharges in a couple of hours under normal use.
• 🔥 Overheating of the case: the device gets hot even without running heavy games or navigation.
• 💸 Write-offs: come in SMS from the operator about connecting paid subscriptions or withdrawing money.
• 🚫 Blocking features: inability to open settings, task manager or antivirus programs.

⚠️ Attention: If your phone is locked and the FSB or Interior Ministry has been blocked, demanding a fine, it is a virus-blocker. No government authorities block phones in this way, and the request for money transfer is a fraud.

Diagnostics should be comprehensive. Check the list of installed applications through Settings → Apps → All applications. Look for programs without icons, with an empty name or those that you did not install. Often viruses are disguised as System Update, Flash Player or Memory Cleanup.

Built-in protection of MIUI and HyperOS

Xiaomi smartphones are equipped with its own security suite, which is based on the engines of leading antivirus laboratories, the first tool that must be used before installing third-party software, the built-in scanner has access to system files, where ordinary applications may not get.

To start the check, open the standard Security app (green icon with a shield). Click on the Security Check or Antivirus button. The system automatically scans the installed applications, files and system partitions for known malicious code signatures.

It is important to update virus databases regularly in your antivirus settings, and to do this, go to the security application settings and select “Update virus databases.” The current databases allow you to recognize new threats that have appeared in 2026.

If the built-in scanner found nothing but symptoms persist, try using Deep Check mode (if available in your version of MIUI).It takes longer, but checks archives and hidden directories more thoroughly.

Manual removal of malicious applications

Many modern viruses have learned to hide from automated scanners by masquerading as system processes, and in this case, manual intervention is required, and your task is to find a process that consumes resources or causes pop-up ads, and force it to stop.

Go to Settings → Apps → All Apps. Study the list carefully. Look for apps that don’t have a name (empty field) or icon. Often, these “invisibles” are located at the end or beginning of the list. If you find a suspicious object, click on it and select “Delete”.

If the delete button is inactive, the virus has been granted device administrator privileges to take them away.

1. Go to Settings → Passwords and Security → Privacy → Special Access Rights.
2. Select the item "Applications with device administrator rights".
3. Uncheck the suspicious app.
4. Only then go back to the app menu and delete it.

After removing the problem application, it is recommended to restart the device and check if the ad has disappeared.If the virus has been embedded deep into the system, simply removing it may not be enough and a more radical cleaning method will be needed.

Cleaning the browser from advertising garbage

Often users confuse a virus in the system with intrusive advertising in the browser. pop-ups, notifications about “winning iPhone” or messages about “detecting a virus” can be just spam in the site’s notifications.

Go to Settings → Applications → All apps and find your browser (Chrome, Yandex, Mi Browser). Click on it and select Memory. Next, click Clear and select Clear All or Clear Data. This will reset your browser settings and delete saved scripts from advertising sites.

It is also important to check the list of permitted notifications:

• 🔔 Open the browser and go to the settings.
• 🔔 Find the Notifications or Sites section».
• 🔔 Disable permissions for all suspicious or unfamiliar resources.

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To prevent the appearance of advertising debris, install an ad-blocking extension in your browser, for example, uBlock Origin or AdGuard, if your version of the browser supports the installation of add-ons.

After cleaning the cache and browser data, it is recommended to check the download history. APK-files, especially if they have names like «update.apk», «player.apk» or «flash_player.apk», Legal updates are coming through Google Play or GetApps.

Use of third-party antiviruses

If Xiaomi’s built-in tools fail to address the threat, specialized antivirus solutions from independent developers will come to the rescue, using different signature databases and heuristic analysis to find what the regular scanner missed.

It is recommended to use only proven products such as Kaspersky, ESET, Dr.Web or Malwarebytes. download them exclusively from the official Google Play store. Installing antivirus from third-party sources can lead to infection with an even more serious virus.

Comparison of popular antivirus solutions for Android:

Once installed, run a full system scan. If a virus is detected, follow the instructions of the application to remove it or quarantine it. Once successfully cleaned, the third-party antivirus can be removed so that you do not waste system resources, leaving only built-in protection.

Radical method: complete reset to factory settings

If none of the above methods worked and the virus continues to be active, the last and most effective way is to completely reset the device (Hard Reset), which is guaranteed to remove any software threats, since it completely reinstalls the operating system.

Before starting the procedure, it is critical to save all important data (photos, contacts, documents) to the Mi Cloud service, computer or external drive, and during the reset, all information from internal memory will be irretrievably destroyed.

Procedure for performing the discharge:

1. Go to Settings → About the phone → Reset settings.
2. Select the option “Erase all data”.
3. Confirm the action by entering the unlock password of the screen.
4. Wait for the process to be completed and the phone setup to be initial.

⚠️ Note: Before resetting, be sure to remove SIM-microSD card and memory card. The virus can get to the memory card, and after you reset the phone, you'll infect it again by inserting the card back.

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A complete reset is the only 100% guarantee of virus removal if it has entered a system partition that cannot be accessed by conventional methods.

After a reset, take your time to restore all applications from backup at once. First install the antivirus and check the phone in a clean form. Then install the applications selectively, avoiding questionable sources.

How to Protect Xiaomi in the Future

The best treatment is prevention. To keep your Xiaomi smartphone safe, you need to maintain digital hygiene. The main cause of infection is installing apps from unknown sources. Always check where you're downloading. APK-file.

In the security settings, enable Threat Search in the Security app so that the system automatically checks new applications when installed, and it is also recommended to update the operating system regularly, as MIUI and HyperOS updates often contain security patches that close vulnerabilities.

Basic safety rules:

• 🛡️ Do not follow suspicious links to SMS messenger.
• 🛡️ Do not connect your phone to public Wi-Fi networks without VPN financial transactions.
• 🛡️ Disable the installation of applications from unknown sources in the settings after use.
• 🛡️ Regularly back up important data.

Compliance with these simple rules will allow you to use your smartphone without the risk of data loss or money. Remember that the security of the device depends primarily on the actions of the user.