Windows_VulnDriver_GDrv_8a7ef0e8

rule Windows_VulnDriver_GDrv_8a7ef0e8 {
    meta:
        author = "Elastic Security"
        id = "8a7ef0e8-3e5a-4e07-b43e-09a73c7df735"
        fingerprint = "ba72769e774334b7c67308762955c50e33671cf7cd990b75ce3fcad60c01a2b3"
        creation_date = "2026-05-22"
        last_modified = "2026-07-13"
        description = "Subject: GIGA-BYTE Technology Co., Ltd."
        threat_name = "Windows.VulnDriver.GDrv"
        reference_sample = "f85784fa8e7a7ec86cb3fe76435802f6bb82256e1824ed7b5d61bf075f054573"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 47 49 47 41 2D 42 59 54 45 20 54 65 63 68 6E 6F 6C 6F 67 79 20 43 6F 2E 2C 20 4C 74 64 2E }
        $str1 = "GVCIDrv64.pdb"
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $subject_name and $str1
}