New "virus" Vkontakte.

This afternoon I began to receive messages from users who are in my friends as follows:

Hello,% username%, I want to ask you about a tiny service :) I'm here fighting for a new laptop from Sony! Be a friend, help win this gorgeous prize! You just have to send SMS text message to the number. 1171 with the text: 57 7147 (! Between, 57 and 7147 dug!), Smska costs 9p, then you will definitely give you this ponyatchek :) Thank you!

In fact, SMS costs around 200 rubles.

I do not see any reasonable explanation for this except the Trojan who steals user passwords from Vkontakte.
Be careful.