Terrance DeJesus
4312d8c958
* initial commit * addressing flake errors * added apm to _get_packagted_integrations logic * addressed flake errors * adjusted integration schema and updated rules to be a list * updated several rules and removed a unit test * updated rules with logs-* only index patterns * Update tests/test_all_rules.py Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com> * addressed flake errors * integration is none is windows, endpoint or apm * adding rules with accepted incoming changes from main * fixed tag and tactic alignment errors from unit testing * adjusted unit testing logic for integration tags; added more exclusion rules * adjusted test_integration logic to be rule resistent and skip if -8.3 * adjusted comments for unit test skip * fixed merge conflicts from main * changing test_integration_tag to remove logic for rule version comparisons * added integration tag to new rule * adjusted rules updated_date value * ignore guided onboarding rule in unit tests * added integration tag to new rule Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
55 lines
2.0 KiB
TOML
55 lines
2.0 KiB
TOML
[metadata]
|
|
creation_date = "2020/10/28"
|
|
integration = ["endpoint", "windows"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
|
min_stack_version = "8.3.0"
|
|
updated_date = "2022/12/14"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies the creation, change, or deletion of a DLL module within a Windows SxS local folder. Adversaries may abuse
|
|
shared modules to execute malicious payloads by instructing the Windows module loader to load DLLs from arbitrary local
|
|
paths.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*", "endgame-*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Execution via local SxS Shared Module"
|
|
note = """## Triage and analysis
|
|
|
|
The SxS DotLocal folder is a legitimate feature that can be abused to hijack standard modules loading order by forcing an executable on the same application.exe.local folder to load a malicious DLL module from the same directory.
|
|
|
|
## 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 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
|
|
"""
|
|
references = ["https://docs.microsoft.com/en-us/windows/win32/dlls/dynamic-link-library-redirection"]
|
|
risk_score = 47
|
|
rule_id = "a3ea12f3-0d4e-4667-8b44-4230c63f3c75"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution", "Elastic Endgame"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
file where file.extension : "dll" and file.path : "C:\\*\\*.exe.local\\*.dll"
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1129"
|
|
name = "Shared Modules"
|
|
reference = "https://attack.mitre.org/techniques/T1129/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0002"
|
|
name = "Execution"
|
|
reference = "https://attack.mitre.org/tactics/TA0002/"
|
|
|