Most probably it wouldn’t be necessary. This file is indeed a malware.
But, in the future, to be safe, try to repair before
When? After sending the file to Chest?
Wait some days, scan the file again to check if it is still detected as being a virus.
Then delete it…
Oh, Chest is safe, you can let the files there and they won’t be able to ‘escape’ from there and infect your computer.