Windows_VulnDriver_Cpuz_41285e2e

rule Windows_VulnDriver_Cpuz_41285e2e {
    meta:
        author = "Elastic Security"
        id = "41285e2e-dd42-4d61-8461-b5d61f4aa3af"
        fingerprint = "d2b66c75a3cacdab8ff07183446a8f839f3743b8d135807b6660c07a98d43883"
        creation_date = "2026-05-22"
        last_modified = "2026-07-13"
        description = "Subject: Beijing Gigabit Times Technology Co., Ltd, Version: <= 1.0.3.1"
        threat_name = "Windows.VulnDriver.Cpuz"
        reference_sample = "79440da6b8178998bdda5ebde90491c124b1967d295db1449ec820a85dc246dd"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 42 65 69 6A 69 6E 67 20 47 69 67 61 62 69 74 20 54 69 6D 65 73 20 54 65 63 68 6E 6F 6C 6F 67 79 20 43 6F 2E 2C 20 4C 74 64 }
        $original_file_name = { 4F 00 72 00 69 00 67 00 69 00 6E 00 61 00 6C 00 46 00 69 00 6C 00 65 00 6E 00 61 00 6D 00 65 00 00 00 63 00 70 00 75 00 7A 00 2E 00 73 00 79 00 73 00 00 00 }
        $version = /V\x00S\x00_\x00V\x00E\x00R\x00S\x00I\x00O\x00N\x00_\x00I\x00N\x00F\x00O\x00\x00\x00{0,4}\xbd\x04\xef\xfe[\x00-\xff]{4}([\x00-\xff][\x00-\xff][\x00-\x00][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\x02][\x00-\x00]|[\x00-\x00][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\x00][\x00-\x00][\x03-\x03][\x00-\x00]|[\x00-\x00][\x00-\x00][\x01-\x01][\x00-\x00][\x01-\x01][\x00-\x00][\x03-\x03][\x00-\x00])/
        $str1 = "cpuz_x32.pdb"
        $str2 = "Windows (R) Codename Longhorn DDK driver" wide
        $str3 = "CPUID Driver" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and $subject_name and $original_file_name and $version and $str1 and $str2 and $str3
}