Config example and Filebeat module for Postfix based on JPCERT/CC report.
https://www.jpcert.or.jp/research/apt-loganalysis.html
- Software Versions:
- Ubuntu 18.04
- Postfix (3.3.0) / Dovecot (2.2.33.2)
- Filebeat: filebeat version 6.6.0 (amd64), libbeat 6.6.0