discovery_system_service_discovery.toml

[metadata]
bypass_bbr_timing = true
creation_date = "2023/01/24"
integration = ["windows", "endpoint", "system"]
maturity = "production"
updated_date = "2024/10/28"
min_stack_version = "8.14.0"
min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."

[rule]
author = ["Elastic"]
building_block_type = "default"
description = """
Detects the usage of commonly used system service discovery techniques, which attackers may use during the
reconnaissance phase after compromising a system in order to gain a better understanding of the environment and/or
escalate privileges.
"""
from = "now-9m"
index = [
    "winlogbeat-*",
    "logs-endpoint.events.process-*",
    "logs-windows.*",
    "endgame-*",
    "logs-system.security*",
]
language = "eql"
license = "Elastic License v2"
name = "System Service Discovery through built-in Windows Utilities"
risk_score = 21
rule_id = "e0881d20-54ac-457f-8733-fe0bc5d44c55"
severity = "low"
tags = [
    "Domain: Endpoint",
    "OS: Windows",
    "Use Case: Threat Detection",
    "Tactic: Discovery",
    "Data Source: Elastic Defend",
    "Data Source: Elastic Endgame",
    "Rule Type: BBR",
    "Data Source: System",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
process where host.os.type == "windows" and event.type == "start" and
  (
  ((process.name: "net.exe" or process.pe.original_file_name == "net.exe" or (process.name : "net1.exe" and 
    not process.parent.name : "net.exe")) and process.args : ("start", "use") and process.args_count == 2) or
  ((process.name: "sc.exe" or process.pe.original_file_name == "sc.exe") and process.args: ("query", "q*")) or
  ((process.name: "tasklist.exe" or process.pe.original_file_name == "tasklist.exe") and process.args: "/svc") or
  (process.name : "psservice.exe" or process.pe.original_file_name == "psservice.exe")
  ) and not user.id : "S-1-5-18"
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1007"
name = "System Service Discovery"
reference = "https://attack.mitre.org/techniques/T1007/"


[rule.threat.tactic]
id = "TA0007"
name = "Discovery"
reference = "https://attack.mitre.org/tactics/TA0007/"