Hacked

Hi,

From a few days I found a problem on my website – Kaspersky and Sucuri report a virus.

In particular:
– MW:IFRAME:HD28 (sucuri)
– HEUR:Trojan.Script.Generic (kaspersky)

Now, I reinstalled WP, deactiveted every plugins and deleted some of these but the problem persists.

With EVERY other website scanner I found nothing, but clear (also Google).

How can I solve this problem?

Thank you,
Mattia