Windows_VulnDriver_Biostar_3340ae10

rule Windows_VulnDriver_Biostar_3340ae10 {
    meta:
        author = "Elastic Security"
        id = "3340ae10-27a4-4a2c-91f1-6e0dc0477781"
        fingerprint = "ddf26c24d7cc076fdfb5b398b94356ebe68f627d3c8c50e0ce195acf60028dc9"
        creation_date = "2026-05-22"
        last_modified = "2026-06-25"
        description = "Subject: BIOSTAR MICROTECH INT'L CORP"
        threat_name = "Windows.VulnDriver.Biostar"
        reference_sample = "d55b675941da4cc9be05f2ef7cea15784074772da585e5bf56d5be15afde4789"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 42 49 4F 53 54 41 52 20 4D 49 43 52 4F 54 45 43 48 20 49 4E 54 27 4C 20 43 4F 52 50 }
        $str1 = "BS_RCIO.pdb"
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $subject_name and $str1
}