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sigma-rules/rules/windows/persistence_appcertdlls_registry.toml
T

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2.6 KiB
TOML

[metadata]
creation_date = "2020/11/18"
integration = ["endpoint", "windows"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/10/23"
[rule]
author = ["Elastic"]
description = """
Detects attempts to maintain persistence by creating registry keys using AppCert DLLs. AppCert DLLs are loaded by every
process using the common API functions to create processes.
"""
from = "now-9m"
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*", "endgame-*"]
language = "eql"
license = "Elastic License v2"
name = "Registry Persistence via AppCert DLL"
risk_score = 47
rule_id = "513f0ffd-b317-4b9c-9494-92ce861f22c7"
setup = """
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 version 8.2.
Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
`event.ingested` to @timestamp.
For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
"""
severity = "medium"
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Persistence", "Tactic: Privilege Escalation", "Data Source: Elastic Endgame", "Data Source: Elastic Defend"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
registry where host.os.type == "windows" and
/* uncomment once stable length(bytes_written_string) > 0 and */
registry.path : (
"HKLM\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*",
"\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*"
)
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1546"
name = "Event Triggered Execution"
reference = "https://attack.mitre.org/techniques/T1546/"
[[rule.threat.technique.subtechnique]]
id = "T1546.009"
name = "AppCert DLLs"
reference = "https://attack.mitre.org/techniques/T1546/009/"
[rule.threat.tactic]
id = "TA0003"
name = "Persistence"
reference = "https://attack.mitre.org/tactics/TA0003/"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1546"
name = "Event Triggered Execution"
reference = "https://attack.mitre.org/techniques/T1546/"
[[rule.threat.technique.subtechnique]]
id = "T1546.009"
name = "AppCert DLLs"
reference = "https://attack.mitre.org/techniques/T1546/009/"
[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"