Suspicious SolarWinds Child Process
editSuspicious SolarWinds Child Process
editA suspicious SolarWinds child process was detected, which may indicate an attempt to execute malicious programs.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- 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:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Execution
- Data Source: Elastic Endgame
- Data Source: Elastic Defend
Version: 109
Rule authors:
- Elastic
Rule license: Elastic License v2
Setup
editSetup
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 version 8.2.
Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
event.ingested
to @timestamp.
For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
Rule query
editprocess where host.os.type == "windows" and 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", "SolarWinds.Topology.Calculator.exe", "SolarWinds.Topology.Calculatorx64.exe", "SolarWinds.APM.RealTimeProcessPoller.exe") and process.code_signature.trusted == true ) and not process.executable : ("?:\\Windows\\SysWOW64\\ARP.EXE", "?:\\Windows\\SysWOW64\\lodctr.exe", "?:\\Windows\\SysWOW64\\unlodctr.exe")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Native API
- ID: T1106
- Reference URL: https://attack.mitre.org/techniques/T1106/
-
Tactic:
- Name: Initial Access
- ID: TA0001
- Reference URL: https://attack.mitre.org/tactics/TA0001/
-
Technique:
- Name: Supply Chain Compromise
- ID: T1195
- Reference URL: https://attack.mitre.org/techniques/T1195/
-
Sub-technique:
- Name: Compromise Software Supply Chain
- ID: T1195.002
- Reference URL: https://attack.mitre.org/techniques/T1195/002/