Windows_VulnDriver_VBox_bfba155d

rule Windows_VulnDriver_VBox_bfba155d {
    meta:
        author = "Elastic Security"
        id = "bfba155d-25b9-4bd2-b5e8-de80d19b9cc9"
        fingerprint = "d43cd5e0d47daacce758477b95743c03a0cbf66806ef6f2ef7e75a5b23961098"
        creation_date = "2026-05-22"
        last_modified = "2026-07-29"
        description = "Subject: innotek GmbH, Version: <= 1.5.6.0"
        threat_name = "Windows.VulnDriver.VBox"
        reference_sample = "d53f9111a5e6c94b37e3f39c5860897405cb250dd11aa91c3814a98b1759c055"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 69 6E 6E 6F 74 65 6B 20 47 6D 62 48 }
        $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 76 00 62 00 6F 00 78 00 67 00 75 00 65 00 73 00 74 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-\x04][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x05-\x05][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\x05][\x00-\x00]|[\x05-\x05][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\x00][\x00-\x00][\x06-\x06][\x00-\x00])/
        $str1 = "VBoxGuestNT.pdb"
        $str2 = "RTSemFastMutexDestroy"
        $str3 = "RTSemFastMutexRelease"
        $str4 = "VirtualBox Guest Additions" wide
        $str5 = "VirtualBox Guest Driver" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and $subject_name and $original_file_name and $version and $str1 and $str2 and $str3 and $str4 and $str5
}