'wordpress got hacked canadian pharma attack

In wordpress dashboard

When I open the dashboard this website is showing if anyone knows from where I can remove this code. Which files do I need to check to fix this in the backend like Wp-admin or wp-includes? I have removed this from a lot of files it's simple HTML and javascript code but unable to find to edit the dashboard. Please let me know Thanks in Advance.



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source