Files found on phone! How is that stealth?

All commands were copied to internal storage of phone like audio. How is that anti-theft or stealth? How do I fix that so they do not get put on the internal storage of the phone. Need to know ASAP

https://www.avast.com/faq.php?article=AVKB214#idt_200

While in Stealth mode, Anti-Theft is hidden from the Android App Launcher and cannot be found or launched in the same way as other apps.
You seem to have misunderstood what the stealth mode is/does.

How to I fix the files on the internal storage?

Some problem, photos and audio records is on phone. This problem is on version 4.1.4 and 4.2.0. On version 1.x.x is everithing ok.
I tested on 3 phones.

There is nothing to fix as this is how it is programmed to be.