IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

« Suspicious Script Object Execution Suspicious Startup Shell Folder Modification »

› › ›

Suspicious SolarWinds Child Process

edit

Suspicious SolarWinds Child Process

edit

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.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

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

Version: 5 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 8.3.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positives

edit

Trusted SolarWinds child processes, verify process details such as network connections and file writes.

Investigation guide

edit

## Config

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.

Rule query

edit

process where event.type in ("start", "process_started") 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")