You are correct that these 2 executable files are part of HyperLynx. They are layout file translators for CR5000 and Specctra CCT design files. If you don't translate designs from those 2 layout tools, then you do not need to run these programs.
As for your anti-virus program quarantining the files, this happens once in a while to various utility programs with most EDA tools. The virus signatures that the anti-virus tools update periodically are not perfect. Somebody who needs the quarantined files needs to work with the anti-virus vendor to work out the correct details of the virus signature data.
OK great thanks yes we most likely, a least in near future, not need to run those.