Hi,
I have Samsung Galaxy A6 with Android 8. I have MBAM and other antivirus apps without catching any infection. For camera and microphone protection I have Camera Guard and Micro Guard Pro with Deep Detective Live subscription enabled. As to be sure that camera and mic are protected enough I have Avira internet security with cam and mic protected too.
For better firewall protection I am behind RATtrap firewall.
But this device worries me a lot because free space is rapidly changing. At first the internal storage (storage/emulated/0 was 21.7/23.1Gb.This was visible in iShredder Military. In System Panel 2 app there is 12% of used storage. I keep loosing free space usually the amount of 300Mb when phone is not in use in the evening. Now is only 20.1/23.1Gb of free space.
I have no idea what is happening with this device all I know free space is changing in a strange way.
The questions for you are the following.
Are this installed malware apk that are not detected or combination of both apk and harvested material (camera and mic recordings)?
If I export any system apk with apk analyzer to the storage, free space will rapidly change, so there must be something infected inside.
I have not enough knowledge to remove advanced malware but I think I am loosing this fight.
I think this smartphone will be updated to Android 9, so there still might be hope for it, but I really dont trust android anymore so that is why I bought Librem 5 smartphone from Purism, but I will have to wait for the phone till April 2019.
This smartphone was rarely connected to the internet so chrome browser might not be caching so much that I would loose such amount of free space. Also I do wipe free space with iShredder Military but I will never took back the lost amount of free space.
So, if anyone have any idea what is going on please do help.
Thank you so much!!!