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Elastic Docs ›Elastic Security Solution [8.8] ›Downloadable rule update v8.3.2

Incoming DCOM Lateral Movement via MSHTA

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IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.

Incoming DCOM Lateral Movement via MSHTA

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Identifies the use of Distributed Component Object Model (DCOM) to execute commands from a remote host, which are launched via the HTA Application COM Object. This behavior may indicate an attacker abusing a DCOM application to move laterally while attempting to evade detection.

Rule type: eql

Rule indices:

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

Severity: high

Risk score: 73

Runs every: 5m

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
  • Lateral Movement

Version: 101

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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sequence with maxspan=1m
  [process where event.type == "start" and
     process.name : "mshta.exe" and process.args : "-Embedding"
  ] by host.id, process.entity_id
  [network where event.type == "start" and process.name : "mshta.exe" and
     network.direction : ("incoming", "ingress") and network.transport == "tcp" and
     source.port > 49151 and destination.port > 49151 and source.ip != "127.0.0.1" and source.ip != "::1"
  ] by host.id, process.entity_id

Framework: MITRE ATT&CKTM

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