Modifying DEFAULT \.com filter?

[viking]

The Default file filter contains
\.com
to avoid downloading possible viruses. This would be tru if the file name ended with .com. However some filenames may contain .com; e.g. abc.com1.jpg

Thus, I would like to change the filter to only look for file names ending with .com.

If I understand correctly, this is simply done by changing the expression to
\.com$
Is this correct?