Files
sigma-rules/rules/macos/persistence_emond_rules_process_execution.toml
T
Jonhnathan 4233fef238 [Security Content] Include "Data Source: Elastic Defend" tag (#3002)
* win folder

* Other folders

* Update test_all_rules.py

* .

* updated missing elastic defend tags

---------

Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
2023-09-05 14:22:01 -04:00

76 lines
1.8 KiB
TOML

[metadata]
creation_date = "2021/01/11"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/06/22"
[rule]
author = ["Elastic"]
description = """
Identifies the execution of a suspicious child process of the Event Monitor Daemon (emond). Adversaries may abuse this
service by writing a rule to execute commands when a defined event occurs, such as system start up or user
authentication.
"""
from = "now-9m"
index = ["logs-endpoint.events.*"]
language = "eql"
license = "Elastic License v2"
name = "Suspicious Emond Child Process"
references = ["https://www.xorrior.com/emond-persistence/"]
risk_score = 47
rule_id = "3e3d15c6-1509-479a-b125-21718372157e"
severity = "medium"
tags = ["Domain: Endpoint", "OS: macOS", "Use Case: Threat Detection", "Tactic: Persistence", "Data Source: Elastic Defend"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
process where host.os.type == "macos" and event.type in ("start", "process_started") and
process.parent.name : "emond" and
process.name : (
"bash",
"dash",
"sh",
"tcsh",
"csh",
"zsh",
"ksh",
"fish",
"Python",
"python*",
"perl*",
"php*",
"osascript",
"pwsh",
"curl",
"wget",
"cp",
"mv",
"touch",
"echo",
"base64",
"launchctl")
'''
[[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 = "T1546.014"
name = "Emond"
reference = "https://attack.mitre.org/techniques/T1546/014/"
[rule.threat.tactic]
id = "TA0003"
name = "Persistence"
reference = "https://attack.mitre.org/tactics/TA0003/"