Android smartphone users sometimes face a situation when the device starts to work slower, and an unknown icon with the inscription Mi Coin appears in the list of applications. Often this causes panic, since the security system may be silent, but the battery is discharged before your eyes. Mi Coin Xiaomi is not an official application from the manufacturer, but malicious software masquerading as a system process or a useful utility.
The main purpose of this virus is to covertly mine cryptocurrency or impose advertising, which leads to overheating of the processor and lower performance of the gadget. Owners of Xiaomi Redmi or POCO may notice its appearance after installing games or programs from unverified sources. It is important to understand that standard methods of removal often do not work, since the virus has the rights of administrator of the device.
In this article, we will take a closer look at the nature of the threat, explain why antiviruses might skip it, and provide step-by-step instructions for cleaning the system completely. You will learn how to find hidden processes and prevent your smartphone from being infected again. The main feature of Mi Coin is its ability to hide in system folders, simulating legitimate MIUI processes.
Nature of the threat: virus or system process
Many users mistakenly believe that Mi Coin is part of the Xiaomi ecosystem because of the similarity of the name to the brand. In fact, it is a classic trojan-miner that uses the computing power of your phone to mine digital currencies. The malware developers specifically chose a name containing the word "Mi" to confuse the owner and avoid suspicion when found in the list of installed programs.
The virus is secretive: it may not display its interface in the background, but its presence gives off an active use of resources: the phone warms even in simple, charging is consumed faster than usual, and the interface can slow down. APK-files downloaded from dubious forums or sites with "modified" versions of popular apps.
The danger is that the program may request advanced permissions, including network access and startup, which allows it to recover even after trying a conventional deletion. Android by default blocks installation from unknown sources, but many users ignore warnings for the sake of installing the desired software.
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Pay attention to the permissions that the app requests when installing. If a simple flashlight asks for access to contacts and SMS, this is a sure sign of malware.
Symptoms of smartphone infection
Mi Coins can be detected on a device by a number of features that are complex, primarily autonomy: a fully charged phone can run out in 3-4 hours of moderate use or even lying on the table, due to the fact that mining is an energy-intensive process that requires constant operation of the processor at high frequencies.
The second sign is that ads appear in unexpected places, on the desktop, on top of other apps, or in the notification curtain, and even if you haven't started your browser, pop-ups can appear spontaneously, which suggests that the virus has embedded itself deep in the system and has privileges to display content on top of other windows.
- 🔥 The smartphone heats up strongly in the processor area even without running games or heavy tasks.
- 📉 Sharp drop in performance: applications open long, interface reacts with a delay.
- 📡 Increased traffic: data usage statistics show a large amount of information transmitted by an unknown application.
- 🔋 Rapid battery discharge, sometimes accompanied by a phone shutdown 20-30% charge.
Also worth paying attention to is the list of applications. Mi Coin may masquerade as system processes with similar names or have no icons at all. If you see a process that consumes a lot of CPU resources in battery settings, but can’t find the corresponding application, that’s an alarm bell.
Can the virus damage iron?
Diagnosis: Search for a malicious process
Before you start deleting, you need to accurately identify the malicious file. The standard task manager may not show the real name of the process, as viruses often mimic. First, go to Settings → Applications → All applications and carefully study the list. Look for apps without icons, with strange names or those whose installation date coincides with the occurrence of problems.
If there's nothing suspicious in the regular menu, check the list of processes that consume charge. Go to Settings → Battery → Charge Consumption. There may be a process with a name other than Mi Coin, but with an abnormally high percentage of consumption. Often it can be a process called System Service, Update Helper, or a set of random characters.
For a deeper diagnosis, you can use Safe Mode, which is a state where only system applications are launched. If safe mode is normal and the phone is not warming, then the problem is exactly in third-party software. To enter this mode, press the off button and then (hold it for a long time) on the "off" button on the screen.
| Parameter | Normal condition | If you have a Mi Coin |
|---|---|---|
| Body temperature | 30-40°C (warm) | 45-60°C (hot) |
| Consumption in simplicity | 1-3% hourly | 10-20% per hour |
| Traffic in the background | Minimum | Tall (hundreds of MB) |
| Interface response | Smooth. | Delays, friezes. |
Another method is to use third-party snails to monitor processes, such as System Panel 2 or Process Watch, to see the process tree and find the "parent" that runs the hidden miner, which will help you understand which application the virus has penetrated into the system.
Removal of Mi Coin Virus Methods
Removing Mi Coin requires sequential action because the virus is protected from removal. The first step should always be to obtain deletion rights. Often the "Delete" button in the app menu is inactive, in which case you need to take away the device administrator rights from the application.
To do this, go to Settings → Advanced Settings → Privacy → Device Administrators (the path may vary depending on the version of MIUI). Find a suspicious app or app with a strange name on the list and uncheck the tick. Then go back to the app menu and try to remove it in the standard way.
☑️ Checklist for virus removal
If standard deletion is not possible, you will need to use ADB (Android Debug Bridge), which is more complicated but more efficient. You will need a computer and a USB cable. Turn on USB debugging in the Developer menu, connect your phone to your PC, and execute a command to delete the packet:
adb shell pm uninstall -k --user 0 com.package.nameInstead of com.package.name, you need to substitute the real name of the virus packet. It can be found through analyzer applications or in the About Phone menu -> All specs (repeatedly tapping the kernel version sometimes opens an extended menu, but it is easier to use ADB adb shell pm list packages).
⚠️ Be very careful when removing system packets through ADB. Removing critical Android components could lead to a cyclic bootloop and the need to flash the device.
After deleting the main file, be sure to clear the browser cache, since it is through it that the virus installer is most often reloaded. APK-file-name.
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The most reliable way to remove a virus that is not removed is to reset to factory settings after a preliminary backup of important data.
Prevention and protection of the system
Once a successful cleanup is done, it is important to prevent re-infection. Mi Coin and similar threats often get into the system due to the user's poor digital hygiene.First of all, refuse to install apps from third-party sources. Only use the official Google Play store or GetApps (Mi Store), where applications are tested for security.
Update your operating system and apps regularly. Xiaomi and Google are constantly closing vulnerabilities that virus writers exploit. Enable Google Play Protect, which scans apps for malicious code even when installed from third-party sources (if you have to).
- 🛡️ Do not follow suspicious links to SMS and messengers promising winnings or bonuses.
- 🔒 Install a reliable antivirus from a well-known vendor, such as Kaspersky, Dr.Web or ESET.
- 🚫 Disable the installation from unknown sources immediately after use if necessary.
It's also useful to check the list of apps with administrator rights periodically, and if you have any unknown programs, it's a red flag, and remember that the free versions of paid programs, "crackers," and game mods, are the main source of Trojans.
⚠️ Warning: Antiviruses don't give 100% protection. The most effective filter is the critical thinking of the user when downloading files.