in my website, adfly's javascript code is inserted automatically after every few hours in index.php and default.php web pages. Every time I remove these unwanted code from both pages manually and that code reappear again after few hours. I have no clue that how this is happened but due to this code, whenever I open above mentioned pages in browser, too many popup pages are opened automatically. How to stop this permanently because I am reading many articles on internet about this issue but still not able to find out any proper solution for last few days.
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