Suspicious SolarWinds Child Process

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A suspicious SolarWinds child process was detected, which may indicate an attempt to execute malicious programs.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*
  • logs-windows.*
  • endgame-*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Execution
  • Elastic Endgame

Version: 103

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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process where event.type == "start" and
 process.parent.name: ("SolarWinds.BusinessLayerHost.exe", "SolarWinds.BusinessLayerHostx64.exe") and
 not process.name : (
        "APMServiceControl*.exe",
        "ExportToPDFCmd*.Exe",
        "SolarWinds.Credentials.Orion.WebApi*.exe",
        "SolarWinds.Orion.Topology.Calculator*.exe",
        "Database-Maint.exe",
        "SolarWinds.Orion.ApiPoller.Service.exe",
        "WerFault.exe",
        "WerMgr.exe",
        "SolarWinds.BusinessLayerHost.exe",
        "SolarWinds.BusinessLayerHostx64.exe") and
 not process.executable : ("?:\\Windows\\SysWOW64\\ARP.EXE", "?:\\Windows\\SysWOW64\\lodctr.exe", "?:\\Windows\\SysWOW64\\unlodctr.exe")

Framework: MITRE ATT&CKTM