The following applies if you perform a scan in the 'Finder':
When you perform a ctrl/right-click scan, if the file you select is infected, then a desktop alert from the on-access scanner is displayed. The item will also be scanned by the on-demand scanner.
If you select a volume or folder to scan and it contains an infected file, this issue does not occur.
What to do
Do one of the following:
- disable the on-access scanner before performing a 'Finder' scan
- scan the enclosing directory instead of the file itself
- use Sweep or a configured scan