Windows_VulnDriver_GDrv_363fa432

rule Windows_VulnDriver_GDrv_363fa432 {
    meta:
        author = "Elastic Security"
        id = "363fa432-05f8-499c-860e-8f3adf3da481"
        fingerprint = "1bb0c0d2079581c0b96b82b783594504c591d1cf71ca27ad0f0ce545a1467803"
        creation_date = "2026-05-22"
        last_modified = "2026-07-13"
        description = "Subject: Giga-Byte Technology, Version: <= 5.0.2195.1620"
        threat_name = "Windows.VulnDriver.GDrv"
        reference_sample = "cfc5c585dd4e592dd1a08887ded28b92d9a5820587b6f4f8fa4f56d60289259b"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 47 69 67 61 2D 42 79 74 65 20 54 65 63 68 6E 6F 6C 6F 67 79 }
        $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 67 00 64 00 72 00 76 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-\x04][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x05-\x05][\x00-\x00][\x00-\xff][\x00-\xff]([\x00-\xff][\x00-\x00]|[\x00-\xff][\x01-\x07]|[\x00-\x92][\x08-\x08])|[\x00-\x00][\x00-\x00][\x05-\x05][\x00-\x00]([\x00-\xff][\x00-\x00]|[\x00-\xff][\x01-\x05]|[\x00-\x53][\x06-\x06])[\x93-\x93][\x08-\x08]|[\x00-\x00][\x00-\x00][\x05-\x05][\x00-\x00][\x54-\x54][\x06-\x06][\x93-\x93][\x08-\x08])/
        $str1 = "gdrv.pdb"
        $str2 = "Windows (R) 2000 DDK driver" wide
        $str3 = "GIGABYTE Tools" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and $subject_name and $original_file_name and $version and $str1 and $str2 and $str3
}