sysmon and Defender search

[Pere]

Hi,

I am quite new to Splunk, so sorry in advance if I ask silly questions.

I have below task to do: "The logs show that Windows Defender has detected a Trojan on one of the machines on the ComTech network. Find the relevant alerts and investigate the logs." I keep searching but dont get the right logs. I seached below filters: 
source="XmlWinEventLog:Microsoft-Windows-Sysmon/Operational"

source="XmlWinEventLog:Microsoft-Windows-Windows Defender/Operational"

I would really appreciate if you could help.

Thanks,

Pere

[yuanliu]

This is a Splunk forum, not a security analyst forum.  No one knows what data is in your sources.  Very few has expertise in the exact domain you work from.  If you know what data will get the answer you are asked but have difficulty get the result you wanted, illustrate the data and desired results, then explain the logic between the two without SPL.  Volunteers can help you from there.