Justin Ibarra
6bdfddac8e
* Expand timestamp_override tests * removed timestamp_override from eql sequence rules * add config entry for eql rules with beats index and t_o * add timestamp_override to missing fields
49 lines
1.6 KiB
TOML
49 lines
1.6 KiB
TOML
[metadata]
|
|
creation_date = "2020/03/16"
|
|
maturity = "production"
|
|
updated_date = "2022/03/31"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies use of bcdedit.exe to delete boot configuration data. This tactic is sometimes used as by malware or an
|
|
attacker as a destructive technique.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Modification of Boot Configuration"
|
|
note = """## Config
|
|
|
|
If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
|
|
"""
|
|
risk_score = 21
|
|
rule_id = "69c251fb-a5d6-4035-b5ec-40438bd829ff"
|
|
severity = "low"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Impact"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
process where event.type in ("start", "process_started") and
|
|
(process.name : "bcdedit.exe" or process.pe.original_file_name == "bcdedit.exe") and
|
|
(process.args : "/set" and process.args : "bootstatuspolicy" and process.args : "ignoreallfailures") or
|
|
(process.args : "no" and process.args : "recoveryenabled")
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1490"
|
|
name = "Inhibit System Recovery"
|
|
reference = "https://attack.mitre.org/techniques/T1490/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0040"
|
|
name = "Impact"
|
|
reference = "https://attack.mitre.org/tactics/TA0040/"
|
|
|