Windows_VulnDriver_Asrock_c0709b33

rule Windows_VulnDriver_Asrock_c0709b33 {
    meta:
        author = "Elastic Security"
        id = "c0709b33-82a7-48fb-91e8-209f35f24095"
        fingerprint = "2752542051ff8bfa2155cd7a0102e66bbd6263a5640b10e1619de0182e7ff383"
        creation_date = "2026-07-26"
        last_modified = "2026-08-11"
        description = "Name: AsrCDDrv.sys, Version: <= 1.0.0.0"
        threat_name = "Windows.VulnDriver.Asrock"
        reference_sample = "688398c0bbfb0776962fb9ac305655378660f3669c95cb044e3f3af21426c395"
        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 41 00 73 00 72 00 43 00 44 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-\x00][\x00-\x00][\x00-\x00][\x00-\x00])/
        $str1 = "AsrCDDrv.pdb"
        $str2 = "ASRock Setup utility" wide
        $str3 = "ASRock Setup Driver" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $original_file_name and $version and $str1 and $str2 and $str3
}