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« Enumeration of Administrator Accounts Account Discovery Command via SYSTEM Account »

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File and Directory Discovery

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File and Directory Discovery

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Enumeration of files and directories using built-in tools. Adversaries may use the information discovered to plan follow-on activity.

Rule type: eql

Rule indices:

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

Severity: low

Risk score: 21

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:

Elastic
Host
Windows
Threat Detection
Discovery

Version: 4

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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sequence by agent.id, user.name with maxspan=1m
[process where event.type in ("start", "process_started") and
  ((process.name : "cmd.exe" or process.pe.original_file_name == "Cmd.Exe") and process.args : "dir") or
    process.name : "tree.com"]
[process where event.type in ("start", "process_started") and
  ((process.name : "cmd.exe" or process.pe.original_file_name == "Cmd.Exe") and process.args : "dir") or
    process.name : "tree.com"]
[process where event.type in ("start", "process_started") and
  ((process.name : "cmd.exe" or process.pe.original_file_name == "Cmd.Exe") and process.args : "dir") or
    process.name : "tree.com"]

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
Technique:
- Name: File and Directory Discovery
- ID: T1083
- Reference URL: https://attack.mitre.org/techniques/T1083/

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