Learn to read domain name is the safest way to avoid any phishing site

Battle net official domain is battle.net, http://<anything>.battle.net/ is legit
Other than that it is FAKE

http://us.battle.net.login.wow-us.pandar.wowbeta.com
obviously this is fake

So do http://www.maybank2u.update.profile.<whatever>.<bla bla bla>.com
Official domain of M2U is maybank2u.com.my
Other than that it is FAKE

Even though your clicked on the phishing site link, it doesn't do anything unless you filled up and submit their forms with your credentials.

Safest way is to like what Shafara said, try hovering your mouse to the link, at the bottom left it will show you the website URL