What were you doing at the time when it was detected ?
What was the file name, where was it found, full path, example (C:\windows\system32\infected-file-name.xxx)?
What is your OS ?
If you have moved it to the chest it can’t do any harm from there, so something else must be going on.
So where was it found again and what was the file name ?
What type of internet connection do you have dial-up, ADSL, etc. ?
What is your firewall ?