Mstsc.EXE Execution With Local RDP File

{
  "process_creation": {
    "EventID": 1,
    "Channel": "Microsoft-Windows-Sysmon/Operational"
  },
  "selection_img": [
    {
      "Image
| endswith": "\\mstsc.exe"
    },
    {
      "OriginalFileName": "mstsc.exe"
    }
  ],
  "selection_cli": {
    "CommandLine
| endswith": [
      ".rdp",
      ".rdp\""
    ]
  },
  "filter_optional_wsl": {
    "ParentImage": "C:\\Windows\\System32\\lxss\\wslhost.exe",
    "CommandLine
| contains": "C:\\ProgramData\\Microsoft\\WSL\\wslg.rdp"
  },
  "condition": "process_creation and (all of selection_* and not 1 of filter_optional_*)"
}

False Positives

• ⚠ Likely with legitimate usage of ".rdp" files