I have a site and somebody is creating bad back links in different types of forum sites. They are creating new links every day using comments and signatures. The sites with these back links aren't relevant to my site or products. They don't often even match the language of my website (English). The bad links sites are usually Japanese, Chinese and Korean.
Is this type of technique harmful for my site as negative SEO? Is Google likely give me a penalty? Does it matter that these sites aren't relevant to my content, language, or products?
I have been submitting these types of web sites to Google Disavow tools. Is the disavow process the right thing to be doing?