System Information Discovery via Windows Command Shell

Identifies the execution of discovery commands to enumerate system info or files and folders using the Windows Command Shell.

Rule type: eql

Rule indices:

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

Severity: low

Risk score: 21

Runs every: 5m

Searches indices from: now-9m (https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html#date-math[Date Math format], see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

• Elastic
• Host
• Windows
• Threat Detection
• Discovery
• Execution

Version: 1

Rule authors:

• Elastic

Rule license: Elastic License v2

process where event.type == "start" and
 process.name : "cmd.exe" and process.args : "/c" and process.args : ("set", "dir")

Framework: MITRE ATT&CKTM

• Tactic:

  • Name: Discovery
  • ID: TA0007
  • Reference URL: https://attack.mitre.org/tactics/TA0007/

• Technique:

  • Name: System Information Discovery
  • ID: T1082
  • Reference URL: https://attack.mitre.org/techniques/T1082/

• Technique:

  • Name: File and Directory Discovery
  • ID: T1083
  • Reference URL: https://attack.mitre.org/techniques/T1083/

• Tactic:

  • Name: Execution
  • ID: TA0002
  • Reference URL: https://attack.mitre.org/tactics/TA0002/

• Technique:

  • Name: Command and Scripting Interpreter
  • ID: T1059
  • Reference URL: https://attack.mitre.org/techniques/T1059/

• Sub-technique:

  • Name: Windows Command Shell
  • ID: T1059.003
  • Reference URL: https://attack.mitre.org/techniques/T1059/003/