Does the following error log xss attack?

Question

I've just found the following error that logged at window.onerror from one of my user:

{"message":"\"nativka already initialized\"","file":"https://staticcf0.ntvk1.ru/nvv.js","line":"12","fileName":"https://staticcf0.ntvk1.ru/nvv.js","lineNumber":"12"}

I don't include nvv.js none of my page. Is it trying to add xss to my site?

Answer 1

Its a security fault from user side. User may installed something malicious softwares on their PC thats why this error occurring. You are safe but i suggest for cross checking you need to check console log on your Machine or on another machines. Another way is to comment all Js part and test your site.

Answer 2

You can safely ignore this error.

One or more of your users has malware installed on their computer that is injecting this script file into their browser for web pages they visit. (The malware appears to add a "МЫ РЕКОМЕНДУЕМ" - Russian for "WE RECOMMEND" - section into visited pages.)