A dialog box will open asking you for the name of the export file and the format. I have not experienced that in 2023.įrom the event search page, look for the “down arrow” icon: this will export your search results. Historically, I have had a few probably where large exports might fail. Step 2: Export the results as JSONīe aware that there are limits to how many records can be exported. I prefered to be precise rather than depending on the UI. You can also use the UI time-picker instead of earliest and latest. If you know what you are looking for and you have verified that all results were returned, and you don’t care about preserving all events, you can change this. If you know of events this will not catch, please email me and I will update this guide.ĬomputerName="EVILCOMPUTER" earliest=":00:00:00" latest=":00:00:00" I have found that all the events I want do have a ComputerName. Why not aid? Because some events like “DetectionSummary” do not have an aid. However, I have had investigations where I had to perform searches for 8 hour time ranges to keep the events until the search limit. For most Windows endpoints that is under the limit. My strategy to ensure I do miss any data is to perform one search per ComputerName per day. The visual sign that your search did not return all records can be subtle and you might miss it. You cannot change these settings: they are set by CrowdStrike in their internal Splunk instance (Event Search is based on Splunk currently). However, there limits to how many records can be returned from a search. I want the native CrowdStrike event fields, and I want all of them. When my purpose for exporting CrowdStrike events is to preserve them, or to load them into Splunk for further analysis, I always export all events with no statistical summarization. Step 1: Perform an Event Search in CrowdStrike This may be beneficial for correlation at scale, but you might not have that option. You can use the Falcon Data Replicator service to automatically import these events to Splunk, but that can get costly and duplicates the data. It’s based on Splunk and I rely on it heavily when performing incident response, extracting observables for threat intelligence, and threat hunting. My solution was to load the JSON into Splunk: with a little custom configuration, the events look nearly identical in Splunk as they do in CrowdStrike Event Search. ![]() ![]() But I wanted to show others how to search and interpret CrowdStrike fields. Recently, I wanted to load an old and complex investigation for review and training. ![]() Whenever I have an investigation, the first thing I do is export ALL CrowdStrike events to a JSON file to preserve them. Note: I will update this post with screenshots at a later date.ĭetailed CrowdStrike events are only searchable for seven days for most customers. Do you use CrowdStrike Event search heavily? Do you come up against the 7-day data retention limit? Do you want to keep some data longer and still search it? This article explains how to manualy export events from CrowdStrike Falcon Event Search and then import that into Splunk for correlation, preservation, or further analysis.
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