Need help with unknown file,

[Android Central Question]

First of all, I just want to say, I don't want to factory reset my device.

So I accidentally downloaded and APK from a website mistaking it was another. (Malicious similar files and website)

So in short terms, I check my memory usage and there's this file that has no name and I can't find it via internal storage or apps. But it shows up in memory usage. It's still running and my only option to force stop doesn't work. Using an LG titan.