This is getting on the verge of simply "Hilarious";
TOP TEN LIST:
1- YOU downloaded a file.
2- It "happened" to be a LINUX executable, without you ever giving it permissions, nor executing it.
3- That magic "executable file", is creating a file which you have deleted so many times that it filled your "trash" folder.
4- Your main concern is "that" reoccurring file.
5- You claim that it is a virus (even though none exists),,
6- All attempts to assist have failed.
7- Nobody else is having this problem.
8- Most of our instructions have been met with a simple "It did Not Work"
9- A bunch of us have spent some time on this "problem".
Last but not least,,,
10- This thread is in "the sandbox".
It is a funny thing indeed!