Windows_VulnDriver_HwRwDrv_cf6936dd

rule Windows_VulnDriver_HwRwDrv_cf6936dd {
    meta:
        author = "Elastic Security"
        id = "cf6936dd-a324-4c91-95ed-e2251d3914ee"
        fingerprint = "e55f27dcb5f54a610d967cd4837ca2b38c8446fd06e876eba2b8d36f4636a922"
        creation_date = "2026-05-22"
        last_modified = "2026-07-20"
        description = "Subject: Open Source Developer, Jun Liu, Version: <= 1.0.6.0"
        threat_name = "Windows.VulnDriver.HwRwDrv"
        reference_sample = "017933be6023795e944a2a373e74e2cc6885b5c9bc1554c437036250c20c3a7d"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 4F 70 65 6E 20 53 6F 75 72 63 65 20 44 65 76 65 6C 6F 70 65 72 2C 20 4A 75 6E 20 4C 69 75 }
        $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 77 00 52 00 77 00 44 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-\x00][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\x05][\x00-\x00]|[\x00-\x00][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\x00][\x00-\x00][\x06-\x06][\x00-\x00])/
        $str1 = "HwRwDrv.pdb"
        $str2 = "Hardware read & write driver" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $subject_name and $original_file_name and $version and $str1 and $str2
}