Hello guys.
First of all i am pretty paranoid when ot comes to viruses and so on, so i just wanted your opinion to calm down my own delusions ;).
So i have an LG g7 Thinq with the newest Update (Which means Android Security Patch Feb 2019 and Android 8.0). Saturday i browsed in my Chrome browser and i got a Popup from a fake site which meant that i won something. It was a fake of an O2 side. I did not clicked on something or where asked for an installation.
what i wanted to do was to search for that url in google. But unintentionally i got again to this side. This time there was nothing but a single html side. I immediatly closed the site, cleared cash and cookies and so on. But once again no installation or obvious download there.
Still at this point i was worried.
What i did:
I checked new Apps → no new App, nothing .
I ran my Avast mobile App scan multiple times → nothing found (I also use that URL safety thing function included in Avast)
I checked with google Play protect → nothing
I checked the device administrators → nothing here but googles find my device, google pay (deactivated), avast (deactived, because i dont want that Anti theft thing) and my always on Display from LG (deactiveted, it says in order to delete the phone data if the password in locking screen was incorrect too often)
I checked pretty much all System apps for something unusual (although i am not 100% sure, but nothing looked suspicious)
Installation from unknown surces was deactiveted, except for the preinstalled E Mail Program for some reason (i never used it, there is still no E Mail registered), I deactiveted it now
Accessibility Services are all disabled (except for Avast for that URL feature)
I installed a root checker from Google play, if someone got root access for some reason, it detects no root access. So my device seems still not rooted.
All in all my device handles pretty normal, the battery seems normal and also it does not heat or something else
Some things that i find strange (but are not too alarming)
Once my Handy vibrates for no reason (might be a bugged message or something idk)
i spotted a .dwnld folder (on top of the normal) on my device once, i never saw it before. there where no data inside. I deleated it. It popped up again today, still nothing in it.
On my sd card is a file called: .android_secure → i cant get details because it says that it does not exist. It has 0 B size, but strangely i cant delete it and it says it was created 01.01.2070?
Thats all i can say for now, thanks for any answers.
Greetings
Alex