The bogus site was spotted by the security researchers at Malware Hunter Team.
The fake site uses the URL https://westpac.[com.au-verify].services/ (without the square brackets which have been put in to prevent anyone clicking on it in error).
Users of the Firefox browser will receive a warning when they try to access this site.
Just like the real thing... a screenshot of the fake Westpac site. Courtesy Malware Hunter Team
iTWire understands that Westpac is aware of the existence of the site and is in touch with the authorities in a bid to get it taken down.
This kind of site is said to be fairly common all over the globe, all with the aim of trying to steal a little bit of others' hard-earned.