Conhost Spawned By Suspicious Parent Process

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Detects when the Console Window Host (conhost.exe) process is spawned by a suspicious parent process, which could be indicative of code injection.

Rule type: query

Rule indices:

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

Severity: high

Risk score: 73

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: 2 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 7.11.2

Rule authors: Elastic

Rule license: Elastic License

Rule query

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event.category:process and event.type:(start or process_started) and
process.name:conhost.exe and process.parent.name:(svchost.exe or
lsass.exe or services.exe or smss.exe or winlogon.exe or explorer.exe
or dllhost.exe or rundll32.exe or regsvr32.exe or userinit.exe or
wininit.exe or spoolsv.exe or wermgr.exe or csrss.exe or ctfmon.exe)

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 2 (7.11.2 release)
  • Formatting only