discovery_hosts_file_access.toml

[metadata]
creation_date = "2023/07/11"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/07/11"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = """
Identifies the use of built-in tools to read the contents of \\etc\\hosts on a local machine. Attackers may use this data
to discover remote machines in an environment that may be used for Lateral Movement from the current system.
"""
from = "now-119m"
interval = "60m"
index = ["logs-endpoint.events.*"]
language = "eql"
license = "Elastic License v2"
name = "System Hosts File Access"
risk_score = 21
rule_id = "f75f65cf-ed04-48df-a7ff-b02a8bfe636e"
severity = "low"
tags = ["Domain: Endpoint", "OS: Linux", "OS: macOS", "Use Case: Threat Detection", "Tactic: Discovery", "Rule Type: BBR", "Data Source: Elastic Defend"]
timestamp_override = "event.ingested"
type = "eql"

query = '''
process where event.type == "start" and event.action == "exec" and
    (process.name:("vi", "nano", "cat", "more", "less") and process.args : "/etc/hosts")
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1018"
name = "Remote System Discovery"
reference = "https://attack.mitre.org/techniques/T1018/"


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