DNS convert the domain into an IP address,some malwares may change your computer’s DNS setting in your computer to a wrong phishing IP address(phishing website) ,sometimes when you have removed the malware by an antiSpyware program such as combofix,malwarebytes in you computer,but the DNS cache in you computer is not be changed, if you find you still visit phishing website ,you should Clear DNS Cache in your computer by below steps:
1,Click on the “Start” button.
2,Select Run and type”cmd” in text box and enter ok.
3 ,Copy “ipconfig /flushdns”and paste on the command line and press “Enter” it will take a few seconds to clear your cache,after finished it will show:
“windows IP configuration
Successfully flushed the DNS Resolver Cache.”