[metadata]
creation_date = "2020/03/19"
maturity = "production"
updated_date = "2020/12/09"

[rule]
author = ["Elastic"]
description = """
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC)
certificates. An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a
malicious executable, making it appear the file was from a trusted, legitimate source.
"""
index = ["winlogbeat-*"]
language = "kuery"
license = "Elastic License"
name = "Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601 - CurveBall)"
risk_score = 21
rule_id = "56557cde-d923-4b88-adee-c61b3f3b5dc3"
severity = "low"
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Defense Evasion"]
type = "query"

query = '''
event.provider:"Microsoft-Windows-Audit-CVE" and message:"[CVE-2020-0601]"
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1553"
name = "Subvert Trust Controls"
reference = "https://attack.mitre.org/techniques/T1553/"
[[rule.threat.technique.subtechnique]]
id = "T1553.002"
name = "Code Signing"
reference = "https://attack.mitre.org/techniques/T1553/002/"


[rule.threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"

