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Process Discovery via Built-In Applications

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Process Discovery via Built-In Applications

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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.*

Severity: low

Risk score: 21

Runs every: 60m

Searches indices from: now-119m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

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

Version: 2

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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

Framework: MITRE ATT&CK^TM

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/

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