Justin Ibarra
97ee8cc9ac
* Refresh beats and ecs schemas and default to use latest to validate * remove incorrect ecs_version from zoom rule * remove stale ecs_version from rules
44 lines
1.1 KiB
TOML
44 lines
1.1 KiB
TOML
[metadata]
|
|
creation_date = "2020/03/19"
|
|
maturity = "production"
|
|
updated_date = "2020/11/03"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies certutil.exe making a network connection. Adversaries could abuse certutil.exe to download a certificate, or
|
|
malware, from a remote URL.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License"
|
|
name = "Network Connection via Certutil"
|
|
risk_score = 21
|
|
rule_id = "3838e0e3-1850-4850-a411-2e8c5ba40ba8"
|
|
severity = "low"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Command and Control"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
sequence by process.entity_id
|
|
[process where process.name : "certutil.exe" and event.type == "start"]
|
|
[network where process.name : "certutil.exe" and
|
|
not cidrmatch(destination.ip, "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16")]
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1105"
|
|
name = "Ingress Tool Transfer"
|
|
reference = "https://attack.mitre.org/techniques/T1105/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0011"
|
|
name = "Command and Control"
|
|
reference = "https://attack.mitre.org/tactics/TA0011/"
|
|
|