usrasn1parser.dll is a ASN1parser
belonging to FNMT-RCM. Parseador ASN1.
from FNMT - RCM
Non-system processes like usrasn1parser.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.