The Indonesian mountain weasel is known from Java and Sumatra. It is reported from high-elevation tropical forests, but detailed records of its life remain limited.
It has the long, slender body and short legs characteristic of weasels; this species is described as reddish brown.
It is known from mountain rainforests at roughly 1,000–2,200 m elevation. More information is needed about its behavior and preferred habitat.
An extinction-risk assessment has not been added yet.