I will try to keep the story as short as possible just so you can have a more clear view of what is my concern. While, I was browsing the Internet on my phone using the Chrome Browser App, I got a notification that I am downloading a file. The notification showed that the file which was being downloaded is an MP3.
Short after that before I even had the time to react and stop the downloading process the file was already on my phone. I immediately deleted it from the Download folder using the File Manager on my phone. However, I noticed that the file format was missing. The file name didn't have any ending such as .pdf, .mp3, .apk, etc.
After that I scanned my phone with several anti-virus software apps and all returned that my phone is safe. However, I am not really sure if I can fully trust them.
I decided to put my phone on quarantine until I got more information regarding this problem. I turned off my Wi-Fi and removed the SIM card from it just in case if it is an actual virus to prevent it sending data or messages to an unknown direction.
I have the following questions:
- If the file format was unknown to the system does this mean that the system was not able to execute the file?
- If I never tried to open the file does this mean that the file was never been executed?
- If I delete the file can I say that I fixed the problem or I should actually do question 4?
- Should I return the factory settings on my phone, so I can wipe everything and have a clean device once again?
PS: I will be very grateful to everyone, who share their thoughts about this with me. Thank you in advance.