Justin Ibarra
eeb8ab7744
* 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
Removed changes from:
- rules/cross-platform/impact_hosts_file_modified.toml
- rules/windows/credential_access_lsass_memdump_file_created.toml
- rules/windows/defense_evasion_adding_the_hidden_file_attribute_with_via_attribexe.toml
- rules/windows/defense_evasion_execution_lolbas_wuauclt.toml
- rules/windows/defense_evasion_suspicious_certutil_commands.toml
- rules/windows/execution_command_shell_started_by_svchost.toml
(selectively cherry picked from commit 6bdfddac8e)
52 lines
1.6 KiB
TOML
52 lines
1.6 KiB
TOML
[metadata]
|
|
creation_date = "2021/04/12"
|
|
maturity = "production"
|
|
updated_date = "2022/03/31"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies the execution of the EarthWorm tunneler. Adversaries may tunnel network communications to and from a victim
|
|
system within a separate protocol to avoid detection and network filtering, or to enable access to otherwise unreachable
|
|
systems.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["auditbeat-*", "logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Potential Protocol Tunneling via EarthWorm"
|
|
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.
|
|
"""
|
|
references = [
|
|
"http://rootkiter.com/EarthWorm/",
|
|
"https://decoded.avast.io/luigicamastra/apt-group-targeting-governmental-agencies-in-east-asia/",
|
|
]
|
|
risk_score = 47
|
|
rule_id = "9f1c4ca3-44b5-481d-ba42-32dc215a2769"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "Linux", "Threat Detection", "Command and Control"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
process where event.type == "start" and
|
|
process.args : "-s" and process.args : "-d" and process.args : "rssocks"
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1572"
|
|
name = "Protocol Tunneling"
|
|
reference = "https://attack.mitre.org/techniques/T1572/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0011"
|
|
name = "Command and Control"
|
|
reference = "https://attack.mitre.org/tactics/TA0011/"
|
|
|