Hi, thank you very much for your answer. I begin getting it. Anyway I can’t lozalize the files. That would be a great help to me if you could try to indicate them.
I scanned my wordpress directory with an antivirus that found a source of infection which I removed.
Than I checked the page code with https://www.aw-snap.info that is dedicated by google. It turned out the malware had placed suspicious links in the code.
There are the file viewer I used and my website address:
https://aw-snap.info/file-viewer/
https://www.pstrykpyk.pl
Thank you very much,
Grzesiek