Why Google is sending SMS messages to me?

I have just received a SMS message… from Google (?):

enter image description here

What is this? Does this mean that some “bad guy” has my phone number and is playing some nice tricks with me, pretending that he is a Google? Or is this truly a Google-originating message?

Why there is a garbage in the message content? Could this be some Asian or otherwise ideographic language’s characters which encoding got lost during transmission through my cellular network?