dotnet.exe

logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|endswith: '\dotnet.exe'
    - OriginalFileName: '.NET Host'
  condition: selection

| tstats summariesonly=false count values(Processes.original_file_name) as original_file_name
    from datamodel=Endpoint.Processes
    where (Processes.original_file_name=".NET Host" OR Processes.process_name="dotnet.exe")
    by Processes.dest Processes.process_name Processes.process_path Processes.process
| rename Processes.* as *

DeviceProcessEvents
| where ProcessVersionInfoOriginalFileName in~ (".NET Host")
    or FileName =~ "dotnet.exe"

process where event.type == "start" and
  (process.pe.original_file_name in~ (".NET Host") or
   process.name : "dotnet.exe")

['.net host'].includes(String(OriginalFileName || '').toLowerCase())