Hi,
Where has this error message originated from? Is it your anti-malware or ant-virus software? If so, it's likely that it has been neutralized. However, proxy back turns your computer into a proxy server for various unwanted purposes. Can you use a different antimalware application to complete a secondary search?
I hope this answers your question.
-----------------------------------------------------------------------------------------------------------------------------------------
--If the reply is helpful, please Upvote and Accept as answer--