Elastic medium stable eql

Suspicious Endpoint Security Parent Process

A suspicious Endpoint Security parent process was detected. This may indicate a process hollowing or other form of code injection.

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Detection Logic

process where host.os.type == "windows" and event.type == "start" and
  process.name : ("esensor.exe", "elastic-endpoint.exe") and
  process.parent.executable != null and
  process.args != null and
  /* add FPs here */
  not process.parent.executable : (
        "?:\\Program Files\\Elastic\\*",
        "?:\\Windows\\System32\\services.exe",
        "?:\\Windows\\System32\\WerFault*.exe",
        "?:\\Windows\\System32\\wermgr.exe",
        "?:\\Windows\\explorer.exe"
  ) and
  not (
    process.parent.executable : (
        "?:\\Windows\\System32\\cmd.exe",
        "?:\\Windows\\System32\\SecurityHealthHost.exe",
        "?:\\Windows\\System32\\SecurityHealth\\*\\SecurityHealthHost.exe",
        "?:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe"
    ) and
    process.args : (
        "test", "version",
        "top", "run",
        "*help", "status",
        "upgrade", "/launch",
        "/enable", "/av"
    )
  )

Field Validations

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