Owners of Xiaomi, Redmi and Poco smartphones often face frightening security or antivirus alerts that report critical vulnerabilities, which can block access to banking applications or require immediate action to clean the device. It is important to understand that not all warnings are signs of real infection, but they cannot be ignored.
Today’s mobile ecosystems are under constant attack from scammers using phishing links and malicious code. The threat to Xiaomi’s payment security is often due to hidden adware modules or fake versions of popular apps. In this article, we’ll look at the real causes of bugs and how to fix them.
Rebuilding a trusted environment for financial transactions requires a holistic approach: you need to check your system settings, analyze the installed applications, and possibly reset certain parameters. Let's look at the main attack vectors and how to protect your funds.
Analysis of system notifications and false threats
The first thing a user encounters when a virus is suspected is a pop-up from the built-in Security scanner. Often, the system flags potentially unwanted programs (PUPs) as malicious. These can be memory cleanup applications, battery accelerators or browsers with aggressive advertising.
But there is a more dangerous scenario where real malware masquerades as a system process: If a notification claims that the payment system is not secure, you should immediately check the list of installed applications.
⚠️ Note: Never follow the link to the SMS-Fraudsters often use social engineering to get you to install a Trojan under the guise of a system upgrade.
For accurate diagnosis, use only built-in tools or proven antivirus solutions. Third-party cleaners from unverified sources can themselves be the source of the threat.
Checking for malware and advertising viruses
If the system reports a threat, the first step is to do a deep file system check. The built-in MIUI antivirus is based on the Avast or Tencent engine, but it's worth using third-party tools like Dr.Web Light or Kaspersky to recheck, which can find hidden miners and password stylers.
Adware, an adware that gets embedded in the system, can intercept clicks, open pop-ups, and collect data about your activity, and removing these viruses requires care, as they often don't have an icon on the desktop.
- 🔍 Check the list of all apps in the settings by sorting them by installation date to find suspicious objects.
- 🛡️ Run a full scan in Safe Mode so that viruses can’t interfere with the antivirus.
- 📂 Note the apps without a name or with a transparent icon in the installed program list.
Pay particular attention to apps with over-the-box rights, which is a feature that is often used to change the interface of banking applications, and if you find a program with a resolution you don't recognize, disable it immediately.
☑️ Diagnostics of the device
Set up a secure Mi Pay and Google Pay environment
Google Pay and Mi Pay use tokenization technology, but they are extremely sensitive to the operating system. If a device receives Root access or unlocks a bootloader, payment applications may stop working or issue warnings about the environment being compromised.
To fix the problem, you need to hide the existence of superuser rights. If you use Magisk, activate Zygisk and add banking applications to the Denilist, and it is recommended to use modules to hide the fact that root rights are available.
| Environment parameter | Status for payments | User action |
|---|---|---|
| Bootloader (Bootloader) | Locked (Blocked) | Lock it up through Fastboot. |
| Root rights | Absent/Hidden | Remove Magisk or set up a cover-up |
| Certificate of Play Protect | Certified. | Check out the Google Play Store |
| Third-party firmware | Official MIUI/HyperOS | Return to the stock market (Global/EEA) |
| System modification | Absent. | Reset changes to Xposed/LSPosed |
| Safe folder | Active (recommended) | Transfer banking applications |
It is important to understand that an unlocked bootloader is a marker of an unsafe environment for Google. Even if you hide the root rights, the mere fact of unlocking can lead to a failure to work. NFC-In that case, the only solution is to return to factory lockdown.
What is SafetyNet and Play Integrity?
Removal of system advertising and Chinese services
One of the hidden threats is aggressive advertising in MIUI system applications, especially in Chinese firmware versions. Advertising modules can redirect users to phishing sites that mimic bank pages.
To reduce the risk of switching to fraudulent resources, follow these steps through the developer menu or special commands, which will remove most of the built-in ad units, which are often mistaken for viruses.
adb shell pm disable-user --user 0 com.miui.misys
adb shell pm disable-user --user 0 com.miui.msaExecuting these commands via the Android Debug Bridge (ADB) on your computer safely removes the system components responsible for advertising, but beware: removing critical system packages can lead to unstable interface operation.
⚠️ Note: Before removing system applications through ADB Make sure to make a full backup of the data. Incorrect removal of system packets can lead to a cyclical reboot of the device.
It’s also worth checking your privacy settings. Go to Settings → Passwords & Security → Data access and restrict internet access for suspicious system services that don’t need an online connection to work.
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Use Second Space mode to install questionable apps, creating an isolated environment where viruses can’t access your basic banking data and contacts.
Data protection when using public Wi-Fi networks
Using public Wi-Fi networks in malls or cafes poses a serious threat to payments; malicious actors can use Man-in-the-Middle techniques to intercept traffic; even if a bank's website uses encryption, the mere fact of connecting to a questionable network increases the risk.
Always use mobile internet for safe operations (4G/5G) reliable VPN-traffic encryption service built-in security features MIUI They may warn of unsafe networks, but they are not the only ones to rely on.
- 📶 Disable automatic connection to open Wi-Fi networks in wireless connection settings.
- 🔒 Use DNS-over-HTTPS (DoH) to prevent substitution DNS-request.
- 📱 Activate Invisibility Mode for Bluetooth when not using wireless headphones.
If you have to make a payment in a public place, make sure there are no outsiders looking at the screen and that your connection is secure.
Resetting network settings and system recovery
If payment security issues are systemic and cannot be addressed by virus removal, network resets or complete firmware resets may be required. Network settings reset eliminate configuration errors that can block the connection to bank servers.
To do this, go to Settings → Connection & Sharing → Reset Wi-Fi, mobile networks and Bluetooth. This action will not delete your personal files, but will reset all saved Wi-Fi and Bluetooth pairing passwords.
In cases where the system continues to issue security errors, the only reliable solution is a complete reset to factory settings (Wipe Data), before you save important data to the cloud service or computer.
⚠️ Warning: Full reset deletes all data from the internal drive.Make sure you remember the password from your Mi Account, otherwise the device may lock up after the reset due to the theft protection feature.
After reset, don't restore applications from backup right away, install only banking applications and check payments, and if the problem happens again, it's because of a system failure that was fixed.
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Factory Reset is a radical but most effective way to remove any hidden viruses and restore the original integrity of the security system.