My children's business ... stolen?

The history of the cognitive plan, which has absolutely zero value for the average person.

Preamble

In deep childhood, began to develop web sites, and the idea was born to create your own web studio. The name was not complicated - Advanced Lab, which later turned into avlab. Of course, on this occasion the domain avlab (dot) ru was purchased. Everything would be fine, but it's time to change everything (both the quality and approach, the team).

Actually, rams

The course was taken on a new TM, and the old domain is forgotten. And today I decided to see WHAT IS THERE? And looked - web studio.
')
I must say, I do not care a damn for the fact that they began to call themselves that, but to write "Welcome to the updated AvLab web studio (dot) ru." Sorry, this is a rude obstruction of the former owners (ie, specifically me) from the UG.

Well, you have to clear the entire Internet from links and similar things. Somehow its reputation is not good to drench.

Can someone tell me what to do when this happens? Thanks in advance.

PS> Of course, no rights, etc. there is no AvLab (by the way, the owners of the eponymous iron maker in Malaysia most likely have it), it is not even legally registered as an enterprise.

PPS> (from the answer) Yes, even would have been able to sue, I would not. I don't need it. I just do not like the fact that someone enjoys my reputation.