How to understand that Xiaomi virus: symptoms of infection and ways to clean

Xiaomi smartphones (including the Redmi, Poco and Mi lines) are not immune to viruses, despite the built-in protection MIUI Security: Malware can penetrate pirated sites APK, The main problem is that viruses on Xiaomi are often disguised as system processes, making them difficult to detect by standard methods.

In this article, we will understand 10 We'll learn to distinguish the virus from the system lags and show you how to check your Xiaomi phone for viruses without installing an antivirus. 3 working methods of treatment, including removal of rootkits and spyware. MIUI 14/15 and relevant to models from Redmi Note 10 Xiaomi 14 Ultra.

10 signs of a virus on Xiaomi: how to distinguish from the usual glitches

Many users confuse the symptoms of the virus with overheating of the processor or battery wear. To avoid deleting useful files and resetting the phone in vain, check these markers:

• 🔋 Battery sits down for 2-3 hours without active use (virus mines cryptocurrency in the background).
• 📱 Spontaneous clicks and swipes – the screen reacts without your participation (classic for Trojan clickers).
• 💰 Debiting the money from the account or SMS Short numbers (spyware steals bank card details).
• 📡 Mobile traffic flies overnight (virus downloads other malicious files).
• 🔄 Applications open and close themselves (especially browsers and instant messengers).
• 📂 Unknown files appear in Download folders or DCIM (often with the extension.apk or.xapk).
• 🚫 Blocking access to settings (virus changes administrator rights).
• 📢 Advertising over all windows, even in lock screen (adver viruses).
• 🔍 Antivirus shuts down or does not start (virus blocks protection).
• 📵 The phone stops catching the network or constantly restarts (critical infection of the system kernel).

If you notice 3 or more signs, the probability of the virus is greater than 80%, but before treatment, make sure that the problem is not overcrowded memory or firmware failure. For example, rapid battery discharge can cause battery wear and spontaneous clicks can cause a touchscreen malfunction.

⚠️ Note: Viruses on Xiaomi are often disguised as system applications with names like com.android.system or miui.daemon. Do not delete files at random - this can lead to a phone blink (complete inoperability).

How to check Xiaomi for viruses without antivirus: 4 built-in methods

Installing antivirus on Xiaomi is not always secure, many of them collect user data themselves. MIUI:

Method 1: Scanning through MIUI Security

Xiaomi has a regular virus scanner that runs on Avast (new versions — Tencent) to run the check:

1. Open Settings → Applications → Security.
2. Scan the Scan (or Security Check in the MIUI 15).
3. Wait until the analysis is completed (it will take). 2-5 minute).
4. If threats are found, click Remove or Treat.

Pay attention: MIUI Security can't find rootkits or deep-level spyware. If the scanner didn't show anything, but the symptoms persist, move on to the next method.

Method 2: Verification of Administrator Rights

Viruses often request administrator privileges to block their deletion, to find suspicious programs.

1. Go to Settings. → Passwords and security → Application authorizations → Special permits → Administrator rights.
2. Check the list of apps: 🤖 Apps with names like Device Test, System Update, or Android Service (unless you installed them). 📱 Programs with icons of a gear or shield (often so disguised Trojans).

Disable the permissions for unknown applications and immediately delete them.

Method 3: Analysis of battery consumption and traffic

Viruses are using resources to calculate them.

1. Battery: Settings → Battery → Battery use: Look for applications with abnormal consumption (e.g. 10% in 1 hour when closed app).
2. Traffic: Settings → SIM-maps and mobile networks → Traffic usage: Viruses can eat away" 1-2 GB a day in the background.

If you find a suspicious app, check it out in VirusTotal (download it). APK-file /data/app via file manager).

Method 4: Verification through ADB (advanced)

If the virus blocks access to settings, use ADB (Android Debug Bridge. This method requires a PC and enabled debugging. USB:

adb shell pm list packages -f | findstr "suspicious_keyword"

Replace. suspicious_keyword You can use the name of a suspicious package (e.g. spy, trojan, or adware) if you find a malicious package, delete it by command:

adb shell pm uninstall -k --user 0 title.packet

⚠️ Note: Removing system packages through ADB This method can cause your phone to fail.Before using this method, make a backup through Settings. → The phone. → Backup.

Top.-3 Antivirus for Xiaomi: which one to choose 2026 year

If the built-in methods didn't work, install a specialized antivirus, but be careful: many "free" antiviruses collect data themselves. We tested 10 applications and selected the 3 most effective and safe for Xiaomi:

We recommend Dr.Web Light for most Xiaomi users – it’s lightweight, doesn’t load the system and even finds hidden threats. Bitdefender is suitable if you suspect spyware (for example, if someone is following your messages).

How to properly scan:

1. Install antivirus from Google Play (not from third-party sites!).
2. Run a full check (not fast!).
3. If threats are found, follow the antivirus instructions. Some viruses require a reboot in Safe Mode to be removed.

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Before installing an antivirus, check its reputation on VirusTotal. Some "antiviruses" are malware themselves.

How to remove the virus from Xiaomi: step-by-step instructions

If you find a virus, you can follow this algorithm. Don't skip the steps, because incomplete removal can lead to reinfection.

Step 1: Reboot in Safe Mode

Safe Mode blocks all third-party applications, including viruses, to log in:

1. Press the power button before the off menu appears.
2. Hold your finger to Turn off - a suggestion will appear to go to safe mode.
3. Confirm and wait for the reboot (the screen will be labeled Safe Mode).

In this mode, remove all suspicious apps through Settings. → Annexes.

Step 2: Delete via Settings (if the virus does not block access)

If the virus is not hidden deep in the system:

1. Open Settings → Applications → Application Management.
2. Sort the list by Installation Date – viruses are often installed recently.
3. Slip on the suspicious app and select Remove.
4. If the Remove button is inactive, first disable the application, then delete.

Step 3: Reset to factory settings (extreme case)

If the virus doesn't get deleted or your phone is locked, do a hard reset. All data will be erased, so pre-extract it. SIM and SD-map.

1. Turn off the phone.
2. Press the Power button + Volume up until the Mi logo appears.
3. In the Recovery menu, select Wipe Data → Wipe All Data (manage by volume buttons, confirm by power button).
4. After resetting, the phone will reboot to its original state.

⚠️ Warning: After reset, do not restore data from a backup made after infection - the virus may return. Use only copies created before symptoms appear.

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If the virus comes back after the reset, it's hidden in the firmware or bootloader, and then only flashing through Fastboot (instructions in the next section) will help.

What to do if the virus returns after resetting

If symptoms persist after hard reset, the virus has invaded the system partition or bootloader.

• 📲 You have installed custom firmware (for example, LineageOS or Pixel Experience).
• 🔓 The bootloader is unlocked via fastboot oem unlock.
• 📦 Installed. APK with root rights (e.g. via Magisk).

In such cases, only a full flashing through the Mi Flash Tool will help.

1. Download the official firmware for your model from the Xiaomi Firmware website (choose the Fastboot version).
2. Install Mi Flash Tool on PC and connect your phone in Fastboot mode (clip Power). + Loudness down).
3. In the program, select the downloaded firmware and press Flash. Importantly, in the settings, select Clean All (complete cleaning).
4. Wait till it's over (10-15 The phone will reboot to "clean" status.

Warning: Fastboot flashing deletes all data without recovery, including files on internal memory, and this method will block the bootloader if it has been unlocked.

How to protect Xiaomi from viruses in the future: 7 rules

Treating viruses is only half the solution, and to avoid re-infection, follow these rules:

• 🛡️ Don't install it. APK from unknown sources (even if they are hacked versions of popular games) Use only Google Play or AppGallery.
• 🔄 Update. MIUI and applications - new versions close vulnerabilities. Check for updates in Settings → The phone. → Updating the system.
• 🔒 Disable the installation from unknown sources: Settings → Annexes → Special permits → Installation of unknown applications.
• 📵 Do not connect to public Wi-Fi without VPN. Viruses can be spread through vulnerabilities in networks (e.g, KRACK-attack).
• 📱 Check the permissions of the applications. If the messenger requests access to geolocation or contacts for no reason, delete it.
• 🔍 Regularly scan your phone through MIUI Security (once a week).
• 🛑 Don't root your phone unnecessarily. Superuser rights give viruses access to system files.

If you frequently install applications from third-party sources (such as modified games), use a sandbox, a special environment that isolates suspicious programs.

FAQ: Frequent questions about viruses on Xiaomi