Locate the specific "offline update" or "mirror" archive for your software. For legacy or specific antivirus versions, these are often provided as .zip files containing a set of .nup , .ver , or .dat files.
Stay secure, stay offline-ready.
It seems you are referring to a process related to for a system (possibly Magento, as EAV is a key database pattern in Magento 1/2, and eav.zip could be a patch file), combined with the concept of patching . offline update eavzip patched
This offline update package provides the latest virus signatures and security patches for systems operating in air-gapped Locate the specific "offline update" or "mirror" archive