Hello
@Kapkhanna,
Is this happening on your Android phone or on a regular PC?
I think you are getting message like this?
Usually these type of bogus alerts are generated via a redirect or pop-up ad that can be found on questionable websites (torrents, adult content etc).
Most of these type of ads recommend that you install different antivirus solutions to "fix" your issue. In most cases you do not need to take any actions because this pop-ups are from ads on different websites.
The messages of the pop-up may differ: "You phone is infected", "Your phone battery is corrupt", "Your operating system is out of date".
Needless to say that they are just scareware (bogus message) and you should not install the app they want. If you want to install an antivirus go with Malwarebytes or Avast Antivirus.
More details:
Android Pop-ups Warn of Infection
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If you suspect your Android phone is infected, you can take these steps:
1. Lets check to see which devices administrators are listed and enabled:
- Open the Settings app on your Android device, and scroll all the way down to Security and tap on it.
- Look for an option named ‘Device administrators’ or ‘All device administrators’, and tap it once.
- You should now be seeing all the administrators listed with their name, as well as a short description of what those administrators do. Notice the check marks next to the names?
2. Next, you can perform a scan with Zemana Mobile Antivirus -
Zemana Mobile Antivirus - Android Apps on Google Play
3. And finally, you should clear you phone cache - you can do this with CCleaner for Android -
CCleaner - Android Apps on Google Play