Welcome to the Q&A Forum

Thank you very much!

I think that the correct tool is in https://www.google.com/webmasters/tools/disavow-links

Hi!

Thank you in advance for your help. Few months ago we suffered a content spam attack. Now, We have discovered that we have imbound links pointing the spam content from external spam and untrusted sites. Could be this affect our ranking? In this case... How can we notify to Google that we refuse these imbound links?

Cheers,

Luis