IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Suspicious SolarWinds Child Processedit
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: 101 (version history)
Added (Elastic Stack release): 7.11.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positivesedit
Trusted SolarWinds child processes, verify process details such as network connections and file writes.
Investigation guideedit
Rule queryedit
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")
Threat mappingedit
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/
Rule version historyedit
- Version 101 (8.5.0 release)
-
-
Updated query, changed from:
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")
-
- Version 7 (8.4.0 release)
-
- Formatting only
- Version 5 (8.3.0 release)
-
- Formatting only
- Version 4 (8.2.0 release)
-
- Formatting only
- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.2 release)
-
- Formatting only