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Elastic Docs ›Elastic Security Solution [7.11] ›Detections and Alerts ›Prebuilt rule reference

Suspicious WMIC XSL Script Execution

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Suspicious WMIC XSL Script Execution

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Identifies WMIC whitelisting bypass techniques by alerting on suspicious execution of scripts. When WMIC loads scripting libraries it may be indicative of a whitelist bypass.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*

Severity: medium

Risk score: 21

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
  • Defense Evasion

Version: 1

Added (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Rule query

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sequence by process.entity_id with maxspan=2m [process where
event.type in ("start", "process_started") and (process.name :
"WMIC.exe" or process.pe.original_file_name == "wmic.exe") and
wildcard(process.args, "format*:*", "/format*:*", "*-format*:*") and
not wildcard(process.command_line, "* /format:table *")] [library
where event.type == "start" and file.name in ("jscript.dll",
"vbscript.dll")]

Threat mapping

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Framework: MITRE ATT&CKTM

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