Windows_VulnDriver_Wsftprm_ab850ccc

rule Windows_VulnDriver_Wsftprm_ab850ccc {
    meta:
        author = "Elastic Security"
        id = "ab850ccc-f8a6-4817-b1ff-80af61ce23d6"
        fingerprint = "d000ce2c48436cffaed4ba6cdcb9f5fc21c70e8d30d16f8e938392c5af5625f7"
        creation_date = "2026-07-26"
        last_modified = "2026-08-11"
        description = "Name: wsftprm.sys, Version: <= 2.0.0.0"
        threat_name = "Windows.VulnDriver.Wsftprm"
        reference_sample = "3c91847f9d2d2f4fd56dcf93158046131e6508e7b81a550c87d520b251e77efe"
        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 77 00 73 00 66 00 74 00 70 00 72 00 6D 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-\x01][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x02-\x02][\x00-\x00][\x00-\x00][\x00-\x00][\x00-\x00][\x00-\x00])/
        $str1 = "wsddprm.pdb"
        $str2 = "Topaz OFD - PM" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $original_file_name and $version and $str1 and $str2
}