If the website is attacked, the links in the website will jump to the gambling website;

  question

The website is attacked, clicking on the link in the website will jump to the gambling website;

Asking how to solve the problem. In a hurry. . .

What Webshell; should be the attack method? The back door of the website;
The server is on Alibaba Cloud

Check out the source code and the folder of the website

If there are any extra folders you haven’t seen, open them and see.

Is there more js in source code inside