It appears that there is a new scam doing the rounds at the moment; some form of adware which pops up with a 'user survey' when a user browses to countdown.co.nz. The scam pages ask users to fulfil a short survey with the promise of heavily discounted promotional items and ultimately prompts users for their credit card information in order to complete the purchase of their discounted goods (which does not complete due to an 'Invalid Merchant Number').
The sites that are subsequently opened/referenced during the process are:
calllocalexpert.com
wowtrk.com
wiz-survey.com
health-consumer-rating.com
kiwilottoservice.com
There may be other sites as the discounted item selected in the instance I am aware of was lotto tickets.
A subsequent anti-spyware scan of the infected machine using 'SuperAntiSpyware', showed the following malware:


The malware appears to be cleaned up fine with SuperAntiSpyware.
Note that from what I can see, this malware is designed to target other sites as well, so it may not just be people visiting countdown.co.nz.
I contacted Countdown about the issue and they confirm that they are not running any such promotion and that they are aware of the issue and have had a number of others contact them about the same scam. It's a pity that they haven't mentioned anything about this on their website.
I'm happy to provide as much information as I can regarding this to anyone who might want it.