Windows_VulnDriver_Asrock_56c671c8

rule Windows_VulnDriver_Asrock_56c671c8 {
    meta:
        author = "Elastic Security"
        id = "56c671c8-5594-4d73-956d-01fb86102289"
        fingerprint = "51b5ea4857f32b2f19047e7470dc26e75bcd66851bd00a27b00c7dedec2153e0"
        creation_date = "2026-05-22"
        last_modified = "2026-06-25"
        description = "Subject: ASROCK Incorporation, Version: <= 1.0.0.0"
        threat_name = "Windows.VulnDriver.Asrock"
        reference_sample = "2aa1b08f47fbb1e2bd2e4a492f5d616968e703e1359a921f62b38b8e4662f0c4"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 41 53 52 4F 43 4B 20 49 6E 63 6F 72 70 6F 72 61 74 69 6F 6E }
        $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 41 00 75 00 74 00 6F 00 43 00 68 00 6B 00 55 00 70 00 64 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 = "AsrAutoChkUpdDrv.pdb"
        $str2 = "AsrAutoChkUpdDrv 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
}