Process Discovery via Built-In Applications

Identifies the use of built-in tools attackers can use to discover running processes on an endpoint.

Rule type: eql
Rule indices:

• logs-endpoint.events.*
• endgame-*

Rule Severity: low
Risk Score: 21
Runs every: 60m
Searches indices from: now-119m
Maximum alerts per execution: ?
References:

Tags:

• Domain: Endpoint
• OS: Linux
• OS: macOS
• Use Case: Threat Detection
• Tactic: Discovery
• Rule Type: BBR
• Data Source: Elastic Defend
• Data Source: Elastic Endgame

Version: ?
Rule authors:

• Elastic

Rule license: Elastic License v2

process where event.type == "start" and event.action in ("exec", "exec_event") and process.name in (
  "ps", "pstree", "htop", "pgrep"
) and
not process.parent.name in ("amazon-ssm-agent", "snap")

Framework: MITRE ATT&CK

• Tactic:

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

• Technique:

  • Name: Process Discovery
  • Id: T1057
  • Reference URL: https://attack.mitre.org/techniques/T1057/

• Technique:

  • Name: Software Discovery
  • Id: T1518
  • Reference URL: https://attack.mitre.org/techniques/T1518/

• Sub Technique:

  • Name: Security Software Discovery
  • Id: T1518.001
  • Reference URL: https://attack.mitre.org/techniques/T1518/001/