Windows_VulnDriver_WinIo_f9f7fa4d

rule Windows_VulnDriver_WinIo_f9f7fa4d {
    meta:
        author = "Elastic Security"
        id = "f9f7fa4d-c377-4be6-9583-f74afc43d6a0"
        fingerprint = "52339c5477efa8c80465213bed5a3f9d84b9c7652240fa6fa48a51e38e3b442f"
        creation_date = "2026-05-22"
        last_modified = "2026-07-29"
        description = "Subject: Fuzhou TianxiaChuangshi Digital Co.,Ltd., Version: <= 7.2.1.6661"
        threat_name = "Windows.VulnDriver.WinIo"
        reference_sample = "9ef6eb93e504351d710b88fd5ec68ef2e0b757ea364341e715b0076dc559b54a"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 46 75 7A 68 6F 75 20 54 69 61 6E 78 69 61 43 68 75 61 6E 67 73 68 69 20 44 69 67 69 74 61 6C 20 43 6F 2E 2C 4C 74 64 2E }
        $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 77 00 69 00 6E 00 69 00 6F 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-\x06][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x01][\x00-\x00][\x07-\x07][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x02-\x02][\x00-\x00][\x07-\x07][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\x00][\x00-\x00]|[\x02-\x02][\x00-\x00][\x07-\x07][\x00-\x00]([\x00-\xff][\x00-\x00]|[\x00-\xff][\x01-\x19]|[\x00-\x04][\x1a-\x1a])[\x01-\x01][\x00-\x00]|[\x02-\x02][\x00-\x00][\x07-\x07][\x00-\x00][\x05-\x05][\x1a-\x1a][\x01-\x01][\x00-\x00])/
        $str1 = "QMacro's driver simulator module." wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and $subject_name and $original_file_name and $version and $str1
}