Remote File Copy to a Hidden Share

edit

Identifies a remote file copy attempt to a hidden network share. This may indicate lateral movement or data staging activity.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*
  • winlogbeat-*
  • logs-windows.*
  • endgame-*
  • logs-system.security*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (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: Lateral Movement
  • Data Source: Elastic Endgame
  • Data Source: Elastic Defend

Version: 108

Rule authors:

  • Elastic

Rule license: Elastic License v2

Setup

edit

Setup

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define event.ingested and default fallback for EQL rules was not added until version 8.2. Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate event.ingested to @timestamp. For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html

Rule query

edit
process where host.os.type == "windows" and event.type == "start" and
  (
    process.name : ("cmd.exe", "powershell.exe", "xcopy.exe") and
    process.args : ("copy*", "move*", "cp", "mv") or
    process.name : "robocopy.exe"
  ) and process.args : "*\\\\*\\*$*"

Framework: MITRE ATT&CKTM