Premium Service Image

Does anyone know where the Premium user's logos are located? Or the way how to hide them?
Thanks in advance..

inside folder spriteimage try to open all file.and you can know "what content/pict inside that's file" please dont lazy.

Yes, ive found already... If someone need it, u can find it having opend common.spr... Premium logo files are:
common-8-22.dds;
common-25.dds.
Solved.