Windows_VulnDriver_MarvinHW_64388663

rule Windows_VulnDriver_MarvinHW_64388663 {
    meta:
        author = "Elastic Security"
        id = "64388663-a5ae-4bcd-93f2-cab1242dbfa5"
        fingerprint = "89bcccc416e8320fc77548ae1ed236d10f822ea6b63790f65b75886774d19122"
        creation_date = "2026-05-22"
        last_modified = "2026-07-20"
        description = "Name: HW.sys, Version: <= 3.2.0.0"
        threat_name = "Windows.VulnDriver.MarvinHW"
        reference_sample = "b8fcc8ef2b27c0c0622d069981e39f112d3b3b0dbede053340bc157ba1316eab"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $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 48 00 57 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-\x02][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x01][\x00-\x00][\x03-\x03][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x02-\x02][\x00-\x00][\x03-\x03][\x00-\x00][\x00-\x00][\x00-\x00][\x00-\x00][\x00-\x00])/
        $str1 = "Geotest HW" wide
        $str2 = "HW - Windows NT/2000/XP kernel mode driver for PC ports/memory/PCI access " wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and $original_file_name and $version and $str1 and $str2
}