ESET has identified that our kernel has a problem with verification of the timestamp of an already expired certificate (expired by 7th Feb 2020). This method fails and our modules in older, legacy versions, are declared as untrusted and are not loaded. This mechanism ensures that no untrusted library is loaded.
As a result, the affected versions fail to load modules (Firewall, HIPS, Updated, Device Control, Web and Email protection) and are not functional, and the protection is not functional.
If the computer has not been restarted ESET Endpoint product yet, make sure you have Antivirus and antispyware module update (version 1559.4) listed in Installed components. This module ensures protection and enables an upgrade to the latest version.
If you have restarted your computer with ESET Endpoint product 5.x, use the fixing tool.
If you are having any concerns or questions, or are unable to upgrade to the latest version, contact ESET Technical Support in your region.