I have a Nexus 5 phone running Android 6.0.1 (security patch level 1 Jun 2016).
It appears that over the past few days it has become infected with malware.
Periodically (every 10-15 minutes) a transparent notification appears near the bottom of the screen that looks like this (the numbers will change, and possibly the non-English text).
Here's what I have tried so far:
- Installed Malwarebytes and ran a scan but it couldn't detect it.
- Installed a few Antivirus programs (AVG, 360 Security) and it didn't find anything out of the ordinary.
- Installed OS Monitor to see if there are any suspicious processes running or network connections open but nothing stands out.
- Closed all running apps
- Rebooted the phone
The notifications keep popping up. I'm a bit stuck here - this definitely looks like malware, but not sure where to go from here. Obviously a factory reset is an option, but I'd like to expore other options first.
Any recommendations about how to proceed?