He is an active Iranian security researcher and vulnerability reporter. He owns the forum black-hg.org (~ Iranian Blackhat Group #BHG).
Has submitted 0-days for some CMS
Also a defacer
http://www.exploit-db.com/author/?a=2686
http://www.1337day.com/author/2494
https://ir.linkedin.com/in/dariushnasirpour
https://twitter.com/NetEdit0r
https://www.facebook.com/Dariush.NasirPour