scripts/show-features.py: use extractor.get_process_name() interface …

[yelhamer]

Currently show-features.py does not use the get_process_name() extractor interface method and instead it tries to access the attribute that stores the process name directly. This can cause issues in the future if feature extractors store that attribute in different manners.

I ran into this issue while trying to use the script with the Drakvuf feature extractor, since CAPE extractor stores the process name as a pydantic object attribute, while Drakvuf extractor stores it in a dictionary.

Checklist

• No CHANGELOG update needed

• No new tests needed

• No documentation update needed

[yelhamer]

I have also fixed this bug:

capa/scripts/show-features.py

Line 175 in b617179

if args.process not in [ph.inner["name"] for ph in args.process]:

It was iterating through args.process (a string) instead of the list process_handles

[mr-tz]

good find

[mr-tz]

can you add a test for the script so we don't encounter this again, please?

[mr-tz]

Thanks!