Xiaomi Virus: How to Find and Delete in 10 Minutes

Xiaomi smartphones (including the Redmi line and POCO) Not immune to virus attacks despite built-in protection MIUI. Attackers are constantly improving methods of penetration: from fake APK-The danger lies not only in the theft of data, but also in the hidden mining of cryptocurrency, which reduces the life of the battery on the computer. 30-40% post 6 months of active use.

This article will help to accurately identify signs of infection, conduct a deep diagnostic system and safely remove the virus without losing data. ADB and third-party antiviruses, with particular attention to firmware vulnerabilities MIUI 12-14, often exploited by fraudsters.

Top.-7 Signs of a virus on Xiaomi that can not be ignored

Symptoms of infection are often disguised as system processes, but there are key markers that give out malware:

• 🔋 A sharp drop in autonomy: the battery sits behind 3-4 hour with minimal load (check settings) → Battery. → Use – unknown processes with consumption >15% should be alert)
• 📱 Spontaneous actions: advertising windows are opened, sent SMS on short numbers, mobile Internet is turned on without your knowledge
• 📡 Suspicious traffic: Mobile data consumption exceeds 1 GB/day in normal use (check Settings) → SIM-maps and mobile networks → Traffic)
• 🔍 Unknown apps in the menu or in the list of installed programs (especially with names like "System Update", "Android Service" with the gear icon)
• 💰 Debiting money from your account without your actions (viruses often connect paid subscriptions through your account) USSD-team)
• 🔒 Antivirus blocking: Standard Security MIUI Refuses to start or gives an error "Service is not available"
• 📲 Overheating of the case without a load (especially in the processor area) is a sign of hidden mining

If you've noticed at least 2-3 Indicators on the list, the probability of infection exceeds 80%. Do not delay the check – some viruses (for example, Xiaomi.Agent.Spy) are able to steal bank card data through the clipboard already through the exchange. 12 hours after installation.

How to check Xiaomi for viruses: 3 reliable methods

Start with built-in tools MIUI, Because they're firmware optimized and they don't require super-user rights, and if standard methods don't work, go to advanced techniques.

Method 1: Built-in security scanner MIUI

This is the safest way to do this, and does not require third-party software:

1. Open the Settings. → Security (on some Redmi models, the path may be Settings) → Additionally. → Security)
2. Select Virus Scanner (or Security Check in New Versions)
3. Click Full Verification and wait until completion (may take time) 5-15 minute)
4. Look at Threats and Suspicious Files – even 1 object you find needs to be deleted

If the scanner finds viruses but cannot remove them (access denied error), this is a sign of a system infection, in which case you will need to reset to factory settings or manually clean through the system. ADB.

Method 2: Checking with Safe Mode

Safe mode only downloads system applications, blocking all third-party programs, which helps to identify viruses masquerading as legitimate software:

Hold the power button until the turn off menu appears|Press and hold "Switch off" (you will be prompted to go to Safe Mode)|Confirm the transition|Check the behavior of the phone during the 10-15 minute-->

In safe mode:

• 🛡️ Check if suspicious symptoms have gone away (advertising, overheating, high battery consumption)
• 🔍 Open the Settings. → Annexes → Application management and sort by installation date
• 🗑️ Remove all unknown programs installed in the past 2-3 weekdays

If the problems have disappeared in Safe Mode, the virus is present in one of the user applications, and if the symptoms persist, it is infected at the system level.

Method 3: Advanced Diagnostics through ADB

For power users, Android Debug Bridge allows you to detect hidden processes that are not visible through the standard interface. USB.

Instructions:

1. Enable Developer Mode (7 times click on Settings) → The phone. → Version. MIUI)
2. Activate USB Debugging in Settings → Additional → For Developers
3. Connect your phone to your PC and execute the commands: adb devices adb shell pm list packages -f | grep -i "suspicious"
4. Look for packages with suspicious names (e.g. com.android.system.update, a popular virus masking)

If you find unknown packages, delete them with the command:

adb shell pm uninstall -k --user 0 name packet

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Before use ADB Create a backup copy through Settings → System system → Backup: A command error can result in system files being deleted.

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

The method you choose depends on the type of infection you get, and start with the most gentle way, and only go for radical measures if the previous ones haven't worked.

Method 1: Remove via settings (for user viruses)

If the virus is installed as a normal application:

1. Go to Settings → Applications → Application Management
2. Sort by installation date and check the latest ones 2-3 weekdays
3. Click on the suspicious app → Delete → OK.
4. Clean the cache in Settings → Storage → Clear the cache

Pay special attention to applications with administrator rights, and to remove them:

1. Go to Settings. → Passwords and security → Administrator rights of the device
2. Remove the ticks from unknown programs
3. Go back to the list of apps and remove them.

Method 2: Use of antiviruses (for deep cleaning)

Standard scanner MIUI Not always effective against new threats.Recommended these proven antiviruses for Xiaomi:

Before installing the antivirus:

• 🔌 Turn off the phone from the internet (plane mode)
• 📥 Download. APK Only from the official website or Google Play
• 🔍 Run a full check (not fast!)
• 🗑️ Remove all threats found and restart the device

Method 3: Reset to factory settings (for system viruses)

If a virus has penetrated system files (which is often the case with modified firmware installations), the only reliable way is to completely reset.

Instructions:

1. Backup important files to your PC or cloud
2. Go to Settings → About the phone → Reset settings
3. Choose to erase all data and confirm
4. After restarting, do not restore data from the backup – the virus may come back!
5. Install only the necessary applications from official sources

Xiaomi specific viruses: how to recognize and remove

Some malware is developed specifically for Xiaomi devices, exploiting vulnerabilities. MIUI. Here are the most common:

1. Xiaomi.Agent.Spy (Spyware)

Signs:

• 📸 Self-activation of the camera (indicator of the burning light bulb)
• 🎤 Recording sound without starting a recorder
• 📍 Unauthorized access to geolocation

How to delete:

1. Check the application rights in Settings → Confidentiality → Permits
2. Remove any programs that have access to the camera/microphone that you have not installed
3. Use Malwarebytes for deep scanning

2. MiAdware (advertising virus)

Signs:

• 📢 Pop-up ads on top of all windows
• 🔗 Redirecting in the browser to suspicious sites
• 📦 Install unknown applications without your knowledge

Virus location: usually disguised as:

• com.android.system.update
• com.qualcomm.telephony
• com.miui.systemAd

Use it to remove it. ADB (Instructions in the section above or Dr.Web antivirus.

3. MiMiner (hidden mining)

Signs:

• 🔥 Processor overheating to 60-70°C without load
• 📉 A sharp drop in productivity (laid even the menu)
• 📊 Unexplained high battery consumption (mediaserver or com.android.phone process consumes) >30%)

How to detect:

1. Install. CPU Monitor from Google Play
2. Check the processor boot to simple (should be) <5%)
3. Look for processes with minergate, cpuminer, xmrig names

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Viruses like MiMiner often exploit a vulnerability in com.qualcomm.qti.telephonyservice that cannot be removed without root permissions. The only reliable way is to flash it.

How to protect Xiaomi from viruses: 10 safety rules

Prevention is always cheaper than treatment, and these measures will reduce the risk of infection by 90%:

• 🔒 Disable the installation from unknown sources: Settings → Confidentiality → Special permits → Install unknown applications (disable for all browsers)
• 🛡️ Update. MIUI monthly: Settings → The phone. → System updates. Critical security patches are released quarterly
• 📥 Download. APK only from official sources: APKMirror, APKPure (check the hash sums of files)
• 🔍 Check the permissions of applications: if the messenger requests access to the SMS Geolocation or geolocation is suspicious.
• 💳 Do not store card data in your browser: use official applications of banks with two-factor authentication
• 📶 Turn off automatic Wi-Fi connection: Settings → Wi-Fi → Additionally. → Auto-connection to open networks
• 🔄 Clean the cache regularly: Settings → Warehouse → Clean the cache (do once a week)
• 📱 Do not use unofficial firmware (such as LineageOS or Pixel Experience) unless you are sure of its security.
• 🔐 Install bootloader lock: fastboot oem lock (after the official firmware)
• 🛑 Do not connect your phone to public charging – through USB You can infect the device (use "charging only")

For additional protection, install NetGuard and set up rules for suspicious applications to help prevent data leakage even if a virus enters the system.

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Create a separate user to test new apps: Settings → System system → Multiple users: This isolates potential threats from the main profile.

What to do if the antivirus does not find the virus, but the symptoms remain

V 10-15% Standard methods do not help because of:

• 🦠 Polymorphic viruses that change their code every time they launch
• 👤 Rootkits embedded in the core of the system
• 📱 Infections via hardware (e.g. via eMMC chip)

Action in this situation:

1. Check the logs of the system through Logcat: adb logcat | grep -i "error\|warn\|Look for recurring errors from unknown processes.
2. Scan your phone from another device: Connect Xiaomi to a PC and use Dr.Web CureIt! to scan internal memory Check folders /data/app and /system/priv-app presence of suspicious files
3. Check firmware integrity: fastboot getvar all Compare the output to the official values for your model on the Xiaomi website.
4. Contact the service center if: The phone was reflashed by unofficial methods There are signs of hardware infection (the virus remains after a complete reset) Antiviruses find threats in the Internet. /system, but they can't remove them.

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If the virus blocks access to settings or antiviruses, try booting into Fastboot Mode (power button) + Volume down) and flash the official ROM It'll delete all the data, but it'll be guaranteed to clean up the system.

FAQ: Frequent questions about viruses on Xiaomi