WordPress Speed Up Service | WordPress Website Maintenance Packages Reply To: Ad Malware on our site but can’t remove!, by separator hi there, i managed to clean this kind of virus thanks to this thread, but what is strange to me is that this virus infects my themes even when i work on localhost. i download a clean copy of everything (WP, theme, plugins etc), then after i work on the new site for a while i realise that the virus code on the functions.php file appears and also the files on the “wp-includes” folder. i made a virus check with Avast on the whole computer and it didnt find anything. how can i find how this is infecting my files on localhost. i think i have it somewhere on my computer which infects my themes before i upload them to the internet. Reply To: Ad Malware on our site but can’t remove!