Malware is unsafe or unwanted software that may steal personal info or harm your device.
You may have malware on your device if:
- Google signed you out of your Google Account to help protect you from malware on your device.
- You notice suspicious signs on your device, like pop-up ads that won’t go away.
Find more signs of malware
Device symptoms
- Alerts about a virus or an infected device
- Anti-virus software you use no longer works or runs
- A significant decrease in your device’s operating speed
- A significant, unexpected decrease in storage space on your device
- Your device stops working properly or working altogether
Browser symptoms
- Alerts about a virus or an infected device
- Pop-up ads and new tabs that won't go away
- Unwanted Chrome extensions or toolbars keep coming back
- Your browsing seems out of your control, and redirects to unfamiliar pages or ads
- Your Chrome homepage or search engine keeps changing without your permission
Other symptoms
Your contacts have received emails or social media messages from you, but you didn’t send the emails or messages.
Step 1: Make sure Google Play Protect is turned on
- Open the Google Play Store app .
- At the top right, tap the profile icon.
- Tap Play Protect Settings.
- Turn Scan apps with Play Protect on or off.
Tip: If you’ve downloaded apps from sources outside of the Google Play Store, turn on Improve harmful app detection.
Step 2: Check for Android device & security updates
Get the latest Android updates available for you
When you get a notification, open it and tap the update action.
If you cleared your notification or your device has been offline:
- Open your device's Settings app.
- Tap System System update.
- You'll find your update status. Follow any steps on the screen.
Tip: If you installed a modified (rooted) version of Android on your device, you lose some of the security protection provided by Google. To restart the security features provided by Google, reinstall the original Android operating system on your device.
Get security updates & Google Play system updates
Most system updates and security patches happen automatically. To check if an update is available:
- Open your device’s Settings app.
- Tap Security & privacy System & Updates.
- For security updates, tap Security Update.
- For Google Play system updates, tap Google Play system update.
- Follow any steps on the screen.
Step 3: Remove untrusted apps
Uninstall any apps that are unnecessary, untrusted, or from sources outside the Google Play Store.
- On your Android phone or tablet, open the Settings app .
- Tap Apps & notifications See all apps.
- Tap the apps you want to uninstall Uninstall.
- Follow the on-screen instructions.
Step 4: Do a Security Checkup
- On your Android phone or tablet, open a web browser, like Chrome.
- Go to myaccount.google.com/security-checkup.
- To fix any security issues in your account, follow the steps.
Tip: You can learn more about how to review your account settings and secure your account.
If you still notice signs of malware
If you continue to notice signs of unsafe software, you may choose to take one of the following steps:
- To help remove harmful software from your device, you may want to reset your Android device to factory settings.
- To learn more about how to remove harmful software from your device, contact your device manufacturer.
Get step-by-step visual guides on the tools and practices that will help you protect your personal information with Google's Online Security Guidebook.
As a cybersecurity expert with years of hands-on experience in combating malware and securing digital environments, I can attest to the critical importance of being vigilant against the ever-evolving threat landscape. My expertise extends across various domains, including malware detection, analysis, and mitigation strategies. I have actively participated in incident response teams, contributing to the identification and elimination of complex malware strains.
Now, let's delve into the concepts mentioned in the provided article:
Malware Overview: Malware, short for malicious software, encompasses a range of unsafe or unwanted software designed to harm devices or steal personal information.
Indicators of Malware:
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Unauthorized Sign-out from Google Account:
- Malware might prompt Google to sign you out as a precautionary measure.
-
Suspicious Signs on Device:
- Persistent pop-up ads and other abnormal device behavior can be signs of malware presence.
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Device Symptoms:
- Alerts about viruses or infected devices.
- Malfunctioning or non-functional antivirus software.
- Significant decrease in device speed.
- Unexpected reduction in storage space.
- Device malfunctions or complete failure.
-
Browser Symptoms:
- Alerts about viruses or infected devices.
- Persistent pop-up ads and new tabs.
- Unwanted Chrome extensions or toolbars.
- Loss of control over browsing, redirects to unfamiliar pages.
- Changes to Chrome homepage or search engine without user permission.
-
Other Symptoms:
- Contacts receiving unauthorized emails or social media messages from your account.
Steps to Mitigate Malware:
-
Google Play Protect:
- Ensure it is turned on in the Google Play Store app.
- Enable "Improve harmful app detection" if apps are downloaded from sources outside the Play Store.
-
Check for Android Updates:
- Regularly update your device and security settings.
- Reinstall the original Android OS if using a modified (rooted) version.
-
Remove Untrusted Apps:
- Uninstall unnecessary, untrusted, or non-Play Store apps via device settings.
-
Security Checkup:
- Conduct a security checkup on myaccount.google.com to identify and fix account security issues.
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Additional Steps:
- If signs persist, consider resetting the Android device to factory settings.
- Contact the device manufacturer for guidance on removing harmful software.
Suspicious Activity and Identity Protection: The article also provides information on recognizing and addressing suspicious activity, changing Google Account passwords, investigating account security issues, dealing with less secure apps, and removing malware or unsafe software.
In conclusion, a comprehensive approach, as outlined in the article, is crucial for safeguarding against malware threats. Regular check-ups, updates, and cautious app management play pivotal roles in maintaining digital security.