Advice about YARA operators wide & ascii

I’ve written a few YARA rules lately to find IP addresses using regex + finding registry keys commonly used for persistence.

The rules don’t work consistently on all files, because some of the data in certain files is encoded with two bytes per character(wide).

Should I create two strings for the two cases in my future rules?
Example:
$a = “\\currentVersion\\RunOnce” wide
$b = “\\currentVersion\\RunOnce
Condition: any of them

What is the best practice ? I need advice. Thanks

addresses advice ascii blueteamsec cases data don files find ip addresses keys operators persistence regex registry rules strings work written yara yara rules