use word boundaries to reduce FPs when detecting strings using regular expressions

[mike-hunhoff]

e.g. /frida(\.exe)?/i can be updated to /\bfrida(\.exe)?\b/i to avoid matching common strings like friday.

[SAMurai-16]

Hi @mike-hunhoff i would like to work on this issue

[williballenthin]

we should also use this for substring features, which use a regex like /pattern/i behind the scenes

[williballenthin]

@SAMurai-16 ok, go for it.

please start by collecting a list of all regexes used by existing rules, and then indicate which ones are candidates for these updates. propose them here to us, and we can discuss and confirm. then you can start on implementation. does that work?

[SAMurai-16]

Sure, that works for me

[mike-hunhoff]

Thanks @SAMurai-16 , I've assigned this issue to you.