Hayabusa medium test sigma

Microsoft Workflow Compiler Execution

Detects the execution of Microsoft Workflow Compiler, which may permit the execution of arbitrary unsigned code.

View Source

Detection Logic

{
  "process_creation": {
    "EventID": 4688,
    "Channel": "Security"
  },
  "selection": [
    {
      "NewProcessName
| endswith": "\\Microsoft.Workflow.Compiler.exe"
    },
    {
      "OriginalFileName": "Microsoft.Workflow.Compiler.exe"
    }
  ],
  "condition": "process_creation and selection"
}

False Positives

  • ⚠ Legitimate MWC use (unlikely in modern enterprise environments)

Field Validations

Loading…

Comments (0)

Loading comments...