[Deprecated] CrowdStrike Falcon Endpoint Protection via Legacy Agent connector for Microsoft Sentinel
Important
Log collection from many appliances and devices is now supported by the Common Event Format (CEF) via AMA, Syslog via AMA, or Custom Logs via AMA data connector in Microsoft Sentinel. For more information, see Find your Microsoft Sentinel data connector.
The CrowdStrike Falcon Endpoint Protection connector allows you to easily connect your CrowdStrike Falcon Event Stream with Microsoft Sentinel, to create custom dashboards, alerts, and improve investigation. This gives you more insight into your organization's endpoints and improves your security operation capabilities.
This is autogenerated content. For changes, contact the solution provider.
Connector attributes
| Connector attribute | Description |
|---|---|
| Log Analytics table(s) | CommonSecurityLog (CrowdStrikeFalconEventStream) |
| Data collection rules support | Workspace transform DCR |
| Supported by | Microsoft Corporation |
Query samples
Top 10 Hosts with Detections
CrowdStrikeFalconEventStream
| where EventType == "DetectionSummaryEvent"
| summarize count() by DstHostName
| top 10 by count_
Top 10 Users with Detections
CrowdStrikeFalconEventStream
| where EventType == "DetectionSummaryEvent"
| summarize count() by DstUserName
| top 10 by count_
Vendor installation instructions
NOTE: This data connector depends on a parser based on a Kusto Function to work as expected which is deployed as part of the solution. To view the function code in Log Analytics, open Log Analytics/Microsoft Sentinel Logs blade, click Functions and search for the alias Crowd Strike Falcon Endpoint Protection and load the function code or click here, on the second line of the query, enter the hostname(s) of your CrowdStrikeFalcon device(s) and any other unique identifiers for the logstream. The function usually takes 10-15 minutes to activate after solution installation/update.
1.0 Linux Syslog agent configuration
Install and configure the Linux agent to collect your Common Event Format (CEF) Syslog messages and forward them to Microsoft Sentinel.
Notice that the data from all regions will be stored in the selected workspace
1.1 Select or create a Linux machine
Select or create a Linux machine that Microsoft Sentinel will use as the proxy between your security solution and Microsoft Sentinel this machine can be on your on-prem environment, Azure or other clouds.
1.2 Install the CEF collector on the Linux machine
Install the Microsoft Monitoring Agent on your Linux machine and configure the machine to listen on the necessary port and forward messages to your Microsoft Sentinel workspace. The CEF collector collects CEF messages on port 514 TCP.
Make sure that you have Python on your machine using the following command: python -version.
You must have elevated permissions (sudo) on your machine.
Run the following command to install and apply the CEF collector:
sudo wget -O cef_installer.py https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/DataConnectors/CEF/cef_installer.py&&sudo python cef_installer.py {0} {1}Forward CrowdStrike Falcon Event Stream logs to a Syslog agent
Deploy the CrowdStrike Falcon SIEM Collector to forward Syslog messages in CEF format to your Microsoft Sentinel workspace via the Syslog agent.
Follow these instructions to deploy the SIEM Collector and forward syslog
Use the IP address or hostname for the Linux device with the Linux agent installed as the Destination IP address.
Validate connection
Follow the instructions to validate your connectivity:
Open Log Analytics to check if the logs are received using the CommonSecurityLog schema.
It may take about 20 minutes until the connection streams data to your workspace.
If the logs are not received, run the following connectivity validation script:
Make sure that you have Python on your machine using the following command: python -version.
You must have elevated permissions (sudo) on your machine
Run the following command to validate your connectivity:
sudo wget -O cef_troubleshoot.py https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/DataConnectors/CEF/cef_troubleshoot.py&&sudo python cef_troubleshoot.py {0}Secure your machine
Make sure to configure the machine's security according to your organization's security policy
Next steps
For more information, go to the related solution in the Azure Marketplace.