Xiaomi’s modern smartphones store a huge amount of personal information, from instant messengers to bank data, making them an attractive target for attackers. If you notice strange behaviors of the device, such as fast battery discharge or standby heating, this may indicate the presence of hidden surveillance software.
The Android-based MIUI operating system has built-in protection mechanisms, but sophisticated spy viruses often masquerade as system processes. Redmi and Poco owners need to know how to tell the difference between a real malfunction and malware. In this article, we will detail the algorithms that will help secure your gadget and remove any foreign programs.
Don't panic if you suspect something is wrong, because a competent approach can fix the problem even without going to the service center. We'll look at both software methods for removing viruses and radical measures like a complete reset. Your task is to carefully study the symptoms and follow the instructions for removing the threat consistently.
Signs of Hidden Software on Xiaomi
The first step is to make an accurate diagnosis of the smartphone, and users often ignore the primary signals as normal glitches, but they are the ones that indicate the activity of a Trojan or spyware module. If your phone is behaving inappropriately for no apparent reason, you should be wary.
Pay attention to the battery discharge rate: if a fully charged Xiaomi discharges in a few hours in downtime, it is a wake-up call. Background data transfer and microphone activation consume significant resources of the device's power system.
- 📉 A sharp decrease in battery autonomy even with minimal screen use.
- 🔥 Strong heating of the body in the area of the processor or camera at rest.
- 📡 Unexplained growth in mobile traffic consumption by unknown apps.
- 📞 The appearance of strange background noises, clicks or echoes during a conversation.
⚠️ Note: If the menu does not open when dialing ##4636##, or if it opens with a delay, this may mean that malware has blocked system functions.
Another clear sign is spontaneous screen turn on, flashes or the appearance of banner ads on the desktop.Spyware often requires constant permissions, which leads to unstable operation of the MIUI interface.
Analysis of installed applications and permissions
Most bugging software masquerades as harmless tools like Memory Cleanup, Flashlight, or Calendar. To find an attacker, you need to do a thorough review of all the apps installed on Xiaomi. Go to the settings and carefully study the list.
Go to Settings → Apps → All apps and sort the list by installation date. Look for programs you haven’t installed or those that don’t have an icon and name (often marked with an empty white square).
Pay special attention to access rights. Spyware can't work without access to a microphone, camera, geolocation, and check which applications have access to these sensitive features.
- 🔍 Check the Special Capabilities section: Viruses often require rights to intercept actions there.
- 📱 Check the list of device administrators in the section "Protection and privacy".
- 🚫 Remove any drawing rights apps over other windows if you don’t need them.
If you find an application that is not removed in the standard way (the Remove button is inactive), then it has received administrator rights. You need to first revoke these rights in the corresponding menu, and then uninstall.
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Use search for the word “device” or “admin” in the settings to quickly find hidden administrator profiles that block virus removal.
Use of built-in security scanner
The MIUI shell already has a powerful anti-malware tool developed in collaboration with anti-virus labs, which is built-in anti-virus that can detect known signatures of spyware that has been embedded in the system.
To start the check, open the standard Security app (green zipper icon). Click on the Scan button and wait until the process is over. The system will check all installed applications and system files for threats.
If the built-in scanner didn't find anything but the symptoms persist, try installing a third-party solution from Google Play, like Malwarebytes or Kaspersky. Sometimes you need to double-check with different detection algorithms.
| Method of verification | Efficiency | Difficulty | Risk of data loss |
|---|---|---|---|
| Integrated MIUI scanner | Medium | Low. | Absent. |
| Third-party antivirus | Tall. | Low. | Absent. |
| Manual process analysis | Tall. | Tall. | Medium. |
| Full reset (Hard Reset) | Maximum | Medium | Total loss. |
It is important to update the virus databases in antivirus software regularly, as new versions of Trojans appear daily. Older databases may not recognize the fresh threat embedded in your Android.
☑️ Security check
Checking through the engineering menu and debugging
For a deeper analysis, you can use Xiaomi’s engineering menu, which provides access to the technical parameters of the network and phone. Entering code # # #6484## will open the CIT menu, where you can check the equipment, but the analysis of network activity is more important for finding a wiretaps.
Turn on USB debugging mode by going to Settings → About Phone → 7 times click on MIUI Version. Then, in the advanced settings, activate USB Debugging. This will allow you to connect your phone to your computer and use traffic analysis tools if you are technically skilled.
⚠️ Note: Do not change the settings in the engineering menu unless you are sure of their purpose, as this may lead to loss of communication or incorrect operation of Wi-Fi and Bluetooth modules.
Note the activity indicators in the upper right corner of the screen (green dot or microphone/camera icon). In modern versions of Android, they light up when an app uses sensitive sensors. If the indicator is on when you are doing nothing, click on it to see which app accesses data.
Using the command line ADB (Android Debug Bridge) allows you to get a list of all running processes, including system. the command adb shell ps will display a list in which you can find processes with suspicious names or high CPU resource consumption.
List of suspicious processes
Radical method: Complete resetting of settings
If none of the software methods helped get rid of the virus, the only guaranteed way is a complete reset to the factory settings (Hard Reset), which completely removes all data from the internal drive, including hidden partitions where malware can hide.
Before starting the procedure, be sure to back up important contacts and photos, but do not back up applications, as the virus can be preserved in the archive.
To enter Recovery mode, turn off your phone and press the Volume Up + Power button combination (some Xiaomi models may differ). In the menu that appears, select English, then Wipe Data → Wipe All Data.
- 🔄 Make sure that the battery is at least 50% before starting the reset.
- 🔒 After the reset, the phone will ask for a password from your Google account (protection) FRP).
- 📂 All files, photos and applications will be permanently deleted from the device.
- ⚙️ The phone will return to the state it was in when buying in the store.
Once the process is complete, the phone will restart and you will have to reset the initial setup, which is the most reliable cleanup method, guaranteeing 99.9% of threats are removed.
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Hard Reset is the only solution that guarantees the removal of deeply embedded rootkits that cannot be removed with standard antivirus tools.
Prevention and protection in the future
Once the wiretapping has been successfully removed, it is important to prevent re-infection, and the main reason for the virus penetration is the user’s own actions, so you should observe digital hygiene when using Xiaomi.
Never install applications from unknown sources. MIUI by default is the installation ban APK-Do not disable the "Device Protection" function without urgent need.
Update your operating system regularly. Xiaomi releases security patches that close vulnerabilities that hackers exploit. Go to Settings → About Phone → System Update and check for new versions.
⚠️ Avoid connecting to public Wi-Fi networks without using them VPN, Because they often intercept data and introduce malicious code.
Use complex passwords to unlock the screen and two-factor authentication for all important accounts, which will create an additional barrier for attackers, even if they gain partial access to the device.