It needs to be done in this way
Maybe some bash script to analyze the log and create new one in windows event format?
But how to interpret these numbers (for example: [1416346326] ) and convert to date and time ?
Not necessarily changing nagios log. It could be for example additional logging which will generate windows log event format. I need it to integrate with ECS monitoring solution. As far as I know it is processing only windows log event files (maybe it can process different format but I am aware only...