how to remove spam link from my site

last 22 days ago i went to a blog site of country dot au. going there i did only one comment.

but yesterday i saw there more then 1200 back link thats created automatically. which are basically spam.

my site google page rank is 5 and alexa under 400K. i am suggested by backlinkccheckertools.org software, that this kinds of back link basically

harmful for a site, now what should i do? how can get rid from this harmful backlink?

No need to worry.  This has happened to one of my sites before.  What may happen is all the automated links may disappear over the next few days.  If they do not, get in touch with the owner of the blog, and tell him to remove your site from his blog/site completely.  Also, too, when I made contact with the owner of the site where it created all the links they were unaware of what I was trying to say, so sometimes it is an accident and fortunately Google knows everyone makes mistakes from time to time.  In the end you will be okay.

Go the account using which you have posted the comment and remove that comment. Although there is no harm of these type of links..