Its usually referred to as 'Tabbie' or 'Golden Tabbie' I think it is produced in much the same way as White Tigers, but a slightly different dilute gene is at work, giving rise to this third colour variant. This one may well have come from Longleat which has bred these in the past. I think White and 'Tabbie' (or Tabbie and Normal, or potentially all three colours) can occur in the same litter. Not sure on the parentage/genetics angle but I think one parent is normally White to produce this colouring. It has only been produced in captivity.
I think it is very unnattractive colouring.
I personally never use the term 'hybrid' when referring to tigers- 'hybrids' to me are only between species.