Justin Ibarra
58 lines
1.9 KiB
TOML
58 lines
1.9 KiB
TOML
[metadata]
|
|
creation_date = "2020/12/04"
|
|
maturity = "production"
|
|
updated_date = "2021/03/03"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Enumeration of files and directories using built-in tools. Adversaries may use the information discovered to plan
|
|
follow-on activity.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
Enumeration of files and directories may not be inherently malicious and noise may come from scripts, automation
|
|
tools, or normal command line usage. It's important to baseline your environment to determine the amount of expected
|
|
noise and exclude any known FP's from the rule.
|
|
""",
|
|
]
|
|
from = "now-9m"
|
|
index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "File and Directory Discovery"
|
|
risk_score = 21
|
|
rule_id = "7b08314d-47a0-4b71-ae4e-16544176924f"
|
|
severity = "low"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Discovery"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
sequence by agent.id, user.name with maxspan=1m
|
|
[process where event.type in ("start", "process_started") and
|
|
((process.name : "cmd.exe" or process.pe.original_file_name == "Cmd.Exe") and process.args : "dir") or
|
|
process.name : "tree.com"]
|
|
[process where event.type in ("start", "process_started") and
|
|
((process.name : "cmd.exe" or process.pe.original_file_name == "Cmd.Exe") and process.args : "dir") or
|
|
process.name : "tree.com"]
|
|
[process where event.type in ("start", "process_started") and
|
|
((process.name : "cmd.exe" or process.pe.original_file_name == "Cmd.Exe") and process.args : "dir") or
|
|
process.name : "tree.com"]
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1083"
|
|
name = "File and Directory Discovery"
|
|
reference = "https://attack.mitre.org/techniques/T1083/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0007"
|
|
name = "Discovery"
|
|
reference = "https://attack.mitre.org/tactics/TA0007/"
|
|
|