Binary Content Copy via Cmd.exe

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Attackers may abuse cmd.exe commands to reassemble binary fragments into a malicious payload.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*

Severity: low

Risk score: 21

Runs every: 60m

Searches indices from: now-119m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Defense Evasion
  • Data Source: Elastic Defend
  • Rule Type: BBR

Version: 1

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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process where host.os.type == "windows" and event.type == "start" and
  process.name : "cmd.exe" and (
    (process.args : "type" and process.args : (">", ">>")) or
    (process.args : "copy" and process.args : "/b"))

Framework: MITRE ATT&CKTM