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: new_terms

Rule indices:

  • logs-endpoint.events.*
  • endgame-*

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
  • Data Source: Elastic Endgame

Version: 6

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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event.category:process and host.os.type:(linux or macos) and event.type:start and event.action:(exec or exec_event) and
process.name:("ps" or "pstree" or "htop" or "pgrep") and not (
  process.parent.name:("amazon-ssm-agent" or "snap") or
  process.parent.args:("/usr/local/ASR/Vx/bin/status" or "/usr/sbin/ksmtuned") or
  process.parent.executable:(
    "/usr/bin/check_mk_agent" or /opt/gitlab/* or "/usr/bin/pmlogctl" or "/usr/libexec/pcp/bin/pmlogger_daily" or
    "/usr/libexec/pcp/bin/pmlogger_check"
  )
)

Framework: MITRE ATT&CKTM