[Deprecated] Forcepoint CASB 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 Forcepoint CASB (Cloud Access Security Broker) Connector allows you to automatically export CASB logs and events into Microsoft Sentinel in real-time. This enriches visibility into user activities across locations and cloud applications, enables further correlation with data from Azure workloads and other feeds, and improves monitoring capability with Workbooks inside Microsoft Sentinel.
Connector attributes
| Connector attribute | Description |
|---|---|
| Log Analytics table(s) | CommonSecurityLog (ForcepointCASB) |
| Data collection rules support | Workspace transform DCR |
| Supported by | Community |
Query samples
Top 5 Users With The Highest Number Of Logs
CommonSecurityLog
| summarize Count = count() by DestinationUserName
| top 5 by DestinationUserName
| render barchart
**Top 5 Users by Number of Failed Attempts **
CommonSecurityLog
| extend outcome = coalesce(column_ifexists("EventOutcome", ""), tostring(split(split(AdditionalExtensions, ";", 2)[0], "=", 1)[0]), "")
| extend reason = coalesce(column_ifexists("Reason", ""), tostring(split(split(AdditionalExtensions, ";", 3)[0], "=", 1)[0]), "")
| where outcome =="Failure"
| summarize Count= count() by DestinationUserName
| render barchart
Vendor installation instructions
- 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 Common Event Format (CEF) logs to Syslog agent
Set your security solution to send Syslog messages in CEF format to the proxy machine. Make sure you to send the logs to port 514 TCP on the machine's 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
- Forcepoint integration installation guide
To complete the installation of this Forcepoint product integration, follow the guide linked below.
Next steps
For more information, go to the related solution in the Azure Marketplace.