Sina is one of seven hackers indicted by the DOJ for 2011-2013 DDoS attacks against US Banks conducted by Iran. As a result of being accused of having a part in the DDoS attacks, he is on the FBI's most wanted cybercriminal list.
According to a department of justice press release he "procured computer servers used to access, manipulate, and test MERSAD’s botnet."
https://www.fbi.gov/wanted/cyber/cyber-crimes
https://www.justice.gov/usao-sdny/pr/manhattan-us-attorney-announces-cha...