Your player is out of date malware

Suppose your homepage is set as Google. When you open Firefox, it shows the Google as the start-up page, but in addition, there is a popup window of a scary warning:

WARNING! Your (Flash) Player may be out of date. Please update, blah blah…

It may not have the word “Flash”, but the icon next to the warning looks like that it is a Adobe Flash update.

Wait - if you look carefully - you are still at Google page, based on the address bar, but the page looks different from the normal Google page. Now it contains lots of extra links, and the links seem legitimate. However, why it shows the Flash player warning? Google search doesn’t use Flash.

You are right, this is caused by malware. To remove this malware, simply Google “Your player is out of date malware” and follow the advice given.

However, the issue comes back and back again even you have scanned your computer several times using well-known anti-malware software! Don’t panic, it is not your fault. You may forget to check your router, which may be comprised. For example, a strange DNS server is set, or bridge mode is used instead of PPPoE in the modem.

Find out all the necessary information to set your modem/router, do a factory reset, update the firmware if there is a new version available. Set the modem/router and see how it goes.

You may the link below useful:
http://malwaretips.com/blogs/warning-your-flash-player-may-be-out-of-date-virus/