Why do you think they are sospiciuous? I have never tried this testoviron .. but from pictures could seems legit .. should be produced by a subsidiary of the German buyers in Thailand.
For what I know, in Thailand it is an important production of drugs for the black market and the products are often very good (I've tried dbol from thailand for example, and work very well).
If you read my other post, I have the same doubts about Galenika testosterone depo, the opinions in rewiews are very different, but I think the only way to know if it's legit or not is be sure of trusted source and try the stuff!