Execution via TSClient Mountpoint

Elastic Stack Serverless Security

Identifies execution from the Remote Desktop Protocol (RDP) shared mountpoint tsclient on the target host. This may indicate a lateral movement attempt.

Rule type: eql

Rule indices:

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

Severity: high

Risk score: 73

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:

• https://posts.specterops.io/revisiting-remote-desktop-lateral-movement-8fb905cb46c3

Tags:

• Elastic
• Host
• Windows
• Threat Detection
• Lateral Movement

Version: 102

Rule authors:

• Elastic

Rule license: Elastic License v2

process where event.type == "start" and process.executable : "\\Device\\Mup\\tsclient\\*.exe"

Framework: MITRE ATT&CKTM

• Tactic:

  • Name: Lateral Movement
  • ID: TA0008
  • Reference URL: https://attack.mitre.org/tactics/TA0008/

• Technique:

  • Name: Remote Services
  • ID: T1021
  • Reference URL: https://attack.mitre.org/techniques/T1021/