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Elastic Docs ›Elastic Security Solution [7.16] ›Detections and alerts ›Prebuilt rule reference

Remote File Download via Script Interpreter

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Remote File Download via Script Interpreter

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Identifies built-in Windows script interpreters (cscript.exe or wscript.exe) being used to download an executable file from a remote destination.

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

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Command and Control

Version: 3 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 7.16.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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sequence by host.id, process.entity_id [network where process.name :
("wscript.exe", "cscript.exe") and network.protocol != "dns" and
network.direction : ("outgoing", "egress") and network.type == "ipv4"
and destination.ip != "127.0.0.1" ] [file where event.type ==
"creation" and file.extension : ("exe", "dll")]

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 3 (7.16.0 release)

  • Updated query, changed from:

    sequence by host.id, process.entity_id [network where process.name :
("wscript.exe", "cscript.exe") and network.protocol != "dns" and
network.direction == "outgoing" and network.type == "ipv4" and
destination.ip != "127.0.0.1" ] [file where event.type ==
"creation" and file.extension : ("exe", "dll")]
Version 2 (7.12.0 release)
  • Formatting only
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