To have your site removed from the "dangerous" category faster, submit it for rechecking in Yandex.Webmaster. In most cases, the site is rechecked within a few days. We would appreciate it if you could send us an example of the code you discovered and where it is located.
If trying to open your site results in a message that this is a phishing site, see the reasons below.
Click-throughs from search results form a unique URL that redirects the user. This link has an expiration date.
Try entering the search query again and find your site in the search results. The message won't be shown now when you click the link.
The link might not be related to Yandex search and might be for a fradulent site created for phishing purposes. Check whether the site URL is correct.
In any case, we don't recommend using such links to continue working with the site.