Chalcorana labialis White-lipped Frog
Some other names for this species:
Copper-cheeked Frog
This species has a confusing history. At one point it was considered part of Hylarana chalconota (formerly known as Rana chalconota), but that was determined to be a species complex and consequently split up. It was also once considered part of Hylarana raniceps, and as a distinct species has been named Hylarana labialis, Rana labialis, and Hydrophylax labialis, at least. Not to be confused with the extremely similar Chalcorana raniceps, which lives on Borneo rather than peninsular Malaysia.
Lowlands, Selangor, MalaysiaJanuary 15, 2017
White-lipped Frog (Chalcorana labialis)
After all that buildup, the frog itself is kind of generic, without any especially interesting characteristics. It is typically found perched on streamside rocks or vegetation. This one has chosen a rock.

My Travelogues and Trip Lists page includes a complete list of the herps I saw in the wild on this trip to Malaysia, as well as a travelogue of the trip.

Lowlands, Selangor, MalaysiaJanuary 17, 2017
White-lipped Frog (Chalcorana labialis)
And this one has chosen vegetation. Let it never be said that wildherps.com doesn't deliver variety!
Online references:
Printed references: