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Elastic Docs ›Elastic Security Solution [7.10] ›Detections and Alerts ›Prebuilt rule reference

Unusual Parent Process for cmd.exe

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Unusual Parent Process for cmd.exe

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Identifies a suspicious parent child process relationship with cmd.exe descending from an unusual process.

Rule type: query

Rule indices:

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

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

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Execution

Version: 1

Added (Elastic Stack release): 7.10.0

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:cmd.exe and process.parent.name:(lsass.exe or csrss.exe
or notepad.exe or regsvr32.exe or dllhost.exe or LogonUI.exe or
wermgr.exe or spoolsv.exe or jucheck.exe or jusched.exe or ctfmon.exe
or taskhostw.exe or GoogleUpdate.exe or sppsvc.exe or sihost.exe or
slui.exe or SIHClient.exe or SearchIndexer.exe or
SearchProtocolHost.exe or FlashPlayerUpdateService.exe or WerFault.exe
or WUDFHost.exe or unsecapp.exe or wlanext.exe)

Threat mapping

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Framework: MITRE ATT&CKTM

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