At.exe Command Lateral Movement

Elastic Stack Serverless Security

Identifies use of at.exe to interact with the task scheduler on remote hosts. Remote task creations, modifications or execution could be indicative of adversary lateral movement.

Rule type: eql

Rule indices:

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

Severity: low

Risk score: 21

Runs every: 60m

Searches indices from: now-119m (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:

• Domain: Endpoint
• OS: Windows
• Use Case: Threat Detection
• Tactic: Lateral Movement
• Data Source: Elastic Defend
• Rule Type: BBR
• Data Source: Elastic Endgame
• Data Source: System

Version: 105

Rule authors:

• Elastic

Rule license: Elastic License v2

process where host.os.type == "windows" and event.type == "start" and process.name : "at.exe" and process.args : "\\\\*"

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/

• Tactic:

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

• Technique:

  • Name: Scheduled Task/Job
  • ID: T1053
  • Reference URL: https://attack.mitre.org/techniques/T1053/

• Sub-technique:

  • Name: At
  • ID: T1053.002
  • Reference URL: https://attack.mitre.org/techniques/T1053/002/

• Sub-technique:

  • Name: Scheduled Task
  • ID: T1053.005
  • Reference URL: https://attack.mitre.org/techniques/T1053/005/