[metadata]
creation_date = "2021/01/19"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/02/22"

[rule]
author = ["Elastic"]
description = """
Detects attempts to exploit privilege escalation vulnerabilities related to the Adobe Acrobat Reader
PrivilegedHelperTool responsible for installing updates. For more information, refer to CVE-2020-9615, CVE-2020-9614 and
CVE-2020-9613 and verify that the impacted system is patched.
"""
false_positives = ["Trusted system or Adobe Acrobat Related processes."]
from = "now-9m"
index = ["auditbeat-*", "logs-endpoint.events.*"]
language = "kuery"
license = "Elastic License v2"
name = "Suspicious Child Process of Adobe Acrobat Reader Update Service"
references = [
    "https://rekken.github.io/2020/05/14/Security-Flaws-in-Adobe-Acrobat-Reader-Allow-Malicious-Program-to-Gain-Root-on-macOS-Silently/",
]
risk_score = 73
rule_id = "f85ce03f-d8a8-4c83-acdc-5c8cd0592be7"
severity = "high"
tags = [
    "Elastic",
    "Host",
    "macOS",
    "Threat Detection",
    "Privilege Escalation",
    "CVE-2020-9615",
    "CVE-2020-9614",
    "CVE-2020-9613",
]
timestamp_override = "event.ingested"
type = "query"

query = '''
event.category:process and host.os.type:macos and event.type:(start or process_started) and
  process.parent.name:com.adobe.ARMDC.SMJobBlessHelper and
  user.name:root and
  not process.executable: (/Library/PrivilegedHelperTools/com.adobe.ARMDC.SMJobBlessHelper or
                           /usr/bin/codesign or
                           /private/var/folders/zz/*/T/download/ARMDCHammer or
                           /usr/sbin/pkgutil or
                           /usr/bin/shasum or
                           /usr/bin/perl* or
                           /usr/sbin/spctl or
                           /usr/sbin/installer or
                           /usr/bin/csrutil)
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1068"
name = "Exploitation for Privilege Escalation"
reference = "https://attack.mitre.org/techniques/T1068/"


[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"