Ryan is right, I did a very quick internet search before and the first thing that came up said they were scrub bulls, but they are a distinct breed. Shouldn't have offered information that I wasn't sure of. Sorry.
This was the very first thing that came up on my search.
Banteng - Wikipedia, the free encyclopediaen.wikipedia.org/wiki/BantengCached - Similar
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The banteng (Bos javanicus), also known as tembadau, is a species of wild cattle found in Southeast Asia. It is also known as scrub bull in Australia