ekrn.exe is a process associated with Eset Smart Security from Eset.
The ekrn.exe process belongs to the ESET NOD32 Antivirus and the ESET Smart Security Suite Kernel Service. The process runs as a service and is the central component for both the NOD32 antivirus and Smart Security suite. Ekrn.exe scans files that you open, save, update or download in real-time.
A Verisign signed file, you can find ekrn.exe within the C:\Program Files folder. The most common size of the file on Windows XP is 224 bytes. You may also find it in 472,320 and 455,936 bytes.