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Suspicious SolarWinds Child Process

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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.*

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

Version: 100

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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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",
        "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&CK^TM

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/

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