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adem_netsys
Explorer III
September 6, 2025
Question

ESX Parser

  • September 6, 2025
  • 3 replies
  • 584 views

Hi guys, 

 

We have implemented ESX-SIEM integration and are experiencing performance issues due to receiving too many unknown events. Has anyone developed a parser for this?

 

Thanks in advance

    3 replies

    AlexPien
    New Member
    September 12, 2025

    The integrated vmware ESXi and vCenter Parser does not include all possible vmware logs. Honestly, the integration is quite poor, compared to other systems. As well the rules are mainly not security relevant: https://help.fortinet.com/fsiem/Public_Resource_Access/7_4_0/rules/rule_descriptions.htm#VCenter%20or%20ESX%20via%20VMSDK 

     

    We are doing the following in each of our FortiSIEM setups:

    1) Log everything from vcenter and ESXi to the SIEM with SYSLOG

    2) Customize the Parser and create additional Event Types

    3) Add additional Rules for Detection of Brute Force etc.

    4) Log dropping in the SIEM for Event Types that we do not want, because they do not have security impact (e.g. some performance, vmotion, quorum, vsan logs)  

    FSM_FTNT
    Staff
    Staff
    September 12, 2025

    Hi @AlexPien @adem_netsys 

    If you can share the event logs and any further content, I can take a look and see if we can incorporate this. 

    Feel free to share with me directly or open a support case and provide me the ticket.


    Appreciate the feedback.

    Thanks

     

    Dan

    costello8
    New Member
    September 21, 2025

    I’ve run into something similar while working with ESX-SIEM integration. The flood of unknown events can really slow things down and make it tough to get usable data. I haven’t seen an official parser App yet, but I’d also be interested if someone has developed one or found a good workaround. Definitely feels like something that would make the integration a lot smoother.