Looks like all of them to me...although one mitigation they didn't clarify is that of you set the .rtf association to WordPad, you're ok (or at least appear to be so far..).
I only use rtf files when I am being utterly lazy because plain txt doesn't want to capture fonts. The rest of the time I guess I use 2003 style .doc (LibreOffice I am looking at you, quit burying it in the settings!)
In a silly other note it's amusing no one has yet (that I know of) made a Botnet Detector game.
"Your machine has been Pwned. What do you want to do?
A. Send 1.6 million emails
B. Participate in a DDOS
C. Play Minefield like it is 1997