Open Google Play Store
Tap your profile icon
Select Play Protect
Tap Scan
Review any warnings or detected apps
Check installed apps for anything unfamiliar
Uninstall suspicious apps
Review app permissions
Remove permissions from apps that do not need them
Check battery usage for unusual drain
Check data usage for unexpected spikes
Restart the phone in Safe Mode
See if suspicious behavior stops in Safe Mode
Update Android to the latest version
Update all installed apps
Clear browser data and downloads
Run a trusted mobile security app scan
Back up important data
Factory reset the device if malware remains