Uninstall harmful app. 'Mobile tracker' can damage your device.' I have a Samsung Galaxy S3 international i9300 since 2012. I've never rooted it. The last app I've installed was a few months ago. I'm running Android 4.4.4.

Today, for the first time ever, I've gotten this notification. It appeared sometime while I was using the Dolphin browser app.

XDA forum thread seems inconclusive. Some say it's an app that you have to install (obviously I've never installed this app), others say it's a part of Samsungs firmware.

Does anyone know what this might be?

EDIT:

Although I haven't been able to confirm this, this seems to be an official Android or Google Play notification. I've clicked the uninstall button and the (Samsung's pre-installed) app 'Mobile tracker' has been removed from the applications list.
I faced the same notification on my Galaxy S 3 yesterday. It prompted me to uninstall it as the app can be used to spy on me. Here is a picture of the pop up:



I clicked on the OK button and hope that no malware has infiltrated the phone this way.