Elastic low stable kql

Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601 - CurveBall)

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.

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Detection Logic

event.provider:"Microsoft-Windows-Audit-CVE" and message:"[CVE-2020-0601]" and host.os.type:windows

Field Validations

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