Most Popular Detection 2026: MSBuild.exe Executing Project Payload from Temp/Download or Inline Task XML
Detects the execution of msbuild.exe targeting project files (.csproj, .proj, .xml) located in user-writable directories such as Temp or Downloads, or containing command-line indicators of inline C# task execution (e.g., UsingTask, CodeTaskFactory). This behavior is commonly used for proxy execution and bypassing application allow-listing via LOLBAS.
Microsoft Sentinel (KQL)
