This situation is well known to
ebay and they have a warning page dedicated to it.
They are basically an attempt to get personal data from you.
You should always check the
ebay page before you login - the address should be
https://
signin.ebay.xx/...
Browser have anti-phising but a test conducted in 2013 showed some to only be 50-75% effective.
Many now adopt the technology from Netcraft.
It would be wise to look at installing the community based software if you frequent auctions.
http://toolbar.netcraft.com/Most phishing sites come from Hong Kong & Russia with about 5 million sites between them