TrustNun is a service that compares file contents and file hashes with "known good" files from ICS/SCADA installation media.
TrustNun was built with the intention of becoming a service to the ICS/SCADA community. While we are trying to be as efficient as possible, there are some costs for software purchases, hosting, and infrastructure. If you'd like to help out, don't hesistate to reach out to us @ contact@qedsecure.com