Thread:Project:Support desk/bin/template.php/reply (3)

No. Don't do that.

I have not checked, what exactly this code does, but already the way it looks like makes clear that it definitely is malicious. Searching Google makes it look like this file might be used to send spam.

MediaWiki does not come with a bin/ folder. The file bin/template.php is not part of MediaWiki. If apart from MediaWiki you are running other software in the same folder, maybe the file (not your malicious version, but an uncompromised one taken from an original download of that other software) might be relevant for that other system. Speaking only about MediaWiki, the file bin/template.php should just not be there at all.