A newly developed PLC malware does not require physical access to target an ICS environment, is mostly platform neutral, and is more resilient than traditional malware aimed at critical infrastructure.
Read more here:
https://www.darkreading.com/ics-ot-security/improved-stuxnet-like-plc-malware-disrupt-critical-infrastructure?fbclid=IwAR1mYOGLcnk5LzUlx1ntUZeBUZJdnWepcqXVJscT6VDmJQ4tleStKMC6KAY
