![]() The Splunk Common Information Model (CIM) delivers a common lexicon of field names and event types across different vendor data sources making them consistent so that analysts can write clearer queries and get better results with more true positives and fewer false positives. I hope this helps and/or someone can provide a better solution. Details This Splunk app was developed with one goal in mind, reduce amount of time spent validating Splunk Common Information Model (CIM) compliance of technology add-ons (TA's). Security and IT analysts need to be able to find threats and issues without having to write complex search queries. I'm also aware I've made upgrading ES in the future more difficult: if that macro is updated by the upgrade, my local tweak will override the upgraded version and it might break things.īut desperate times calls for desperate measures. I'm aware that I've introduced the risk of the search not returning results for recent notables, however we don't really use fancy adaptive responses so I don't think it'll impact us. This seems to have helped the issue although it's early to tell. Splunk Enterprise 6.4.3 An it does not look like this text is part of the CIM app: splunksearch1 SplunkSACIM find. That said I did notice that the macro starts with "tstats summariesonly=false" and I know from experience that tstats searches can be surprisingly slow even if data model summaries cover virtually all the search time window, so I changed it to "tstats summariesonly=true". ![]() I checked what recommended and everything seemed to be in order. Looking at the macro definition and running it manually, I couldn't reproduce the slowness: it seemed to complete fine. On ES (4.7.2), the correlation search 'Default Account Usage' is supposed to create notable events for default accounts as stated in its description: 'Discovers use of default accounts (such as admin, administrator, etc.). that this search is triggered when a notable is expanded within Incident Review, so that is bound to happen a lot. The Splunk Add-on for Sysmon provides the inputs and CIM-compatible knowledge to use with other Splunk apps. The main challenge with upgrading the Splunk CIM resides in the local copy of the datamodels. ![]() Ive looked in the internal logs to see if there are any errors or warnings around acceleration or the name of the data model, but all I see are the successful searches that show the execution time and amount of events discovered. This is a simple toolset to help with upgrades of the Splunk SA CIM package especially. If I run the tstats command with the summariesonlyt, I always get no results. Splunk-SA-CIM-in-docker-upgrade Docker based workflow to compare and upgrade Splunk SA CIM data models Purpose This is a simple toolset to help with upgrades of the Splunk SA CIM package especially. The most obvious symptom was a large amount of ad-hoc searches running modular_action_invocations each taking several minutes to finish. Docker based workflow to compare and upgrade Splunk SA CIM data models. Users were reporting very poor performance from splunk, although it didn't look like the platform was heavily used. This issue arised again for us this week.
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