Windows_VulnDriver_Biostar_5ba03dcb

rule Windows_VulnDriver_Biostar_5ba03dcb {
    meta:
        author = "Elastic Security"
        id = "5ba03dcb-1499-4ffa-936f-97f7ea0dce0d"
        fingerprint = "d86278acc0eba81f50486fe3be0e0aa30a7af766956eb1aba23b8865fe92a4dc"
        creation_date = "2026-05-22"
        last_modified = "2026-06-25"
        description = "Subject: BIOSTAR MICROTECH INT'L CORP"
        threat_name = "Windows.VulnDriver.Biostar"
        reference_sample = "6dafd15ee2fbce87fef1279312660fc399c4168f55b6e6d463bf680f1979adcf"
        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_HWMIo.pdb"
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $subject_name and $str1
}