are in addition to MISP attributes to allow advanced combinations of attributes. The creation of these objects
and their associated attributes are based on real cyber security use-cases and existing practices in information sharing.
Feel free to propose your own MISP objects to be included in MISP. The system is similar to the [misp-taxonomies](https://github.com/MISP/misp-taxonomies) where anyone can contribute their own objects to be included in MISP without modifying software.
Each attribute must contain a reference **misp-attribute** to reference an existing attribute definition in MISP (MISP attributes types are case-sensitive).
* [objects/ail-leak](objects/ail-leak/definition.json) - information leak object as defined by the [AIL Analysis Information Leak framework](https://www.github.com/CIRCL/AIL-framework).
* [objects/android-permission](objects/android-permission/definition.json) - A set of android permissions - one or more permission(s) which can be linked to other objects (e.g. file).
* [objects/asn](objects/asn/definition.json) - Autonomous system object describing a BGP autonomous system which can include one or more network operators management an entity (e.g. ISP) along with their routing policy, routing prefixes or alike.
* [objects/passive-dns](objects/passive-dns/definition.json) - Passive DNS records as expressed in [draft-dulaunoy-dnsop-passive-dns-cof-01](https://tools.ietf.org/html/draft-dulaunoy-dnsop-passive-dns-cof-01).
* [objects/paste](objects/paste/definition.json) - Object describing a paste or similar post from a website allowing to share privately or publicly posts.
* [objects/vulnerability](objects/vulnerability/definition.json) - Vulnerability object to describe software or hardware vulnerability as described in a CVE.
* [objects/url](objects/url/definition.json) - url object describes an url along with its normalized field (e.g. using faup parsing library) and its metadata.
The MISP object model is open and allows user to use their own relationships. MISP provides a list of default relationships that can be used if you plan to share your events with other MISP communities.
- [relationships](relationships/definition.json) - list of predefined default relationships which can be used to link MISP objects together and explain the context of the relationship.
Fork the project, create a new directory in the [objects directory](objects/) matching your object name. Objects must be composed
of existing MISP attributes. If you are missing a specific attributes, feel free to open an issue in the [MISP project](https://www.github.com/MISP/MISP).
The MISP objects are documented at the following location in [HTML](https://www.misp-project.org/objects.html) and [PDF](https://www.misp-project.org/objects.pdf).
The documentation is automatically generated from the MISP objects template expressed in JSON.
## What are the advantages of MISP objects versus existing standards?
MISP objects are dynamically used objects that are contributed by users of MISP (the threat sharing platform) or other information sharing platforms.
The aim is to allow a dynamic update of objects definition in operational distributed sharing systems like MISP. Security threats and their related indicators are quite dynamic, standardized formats are quite static and new indicators require a significant time before being standardized.
The MISP objects model allows to add new combined indicators format based on their usage without changing the underlying code base of MISP or other threat sharing platform using it. The definition of the objects can be then propagated along with the indicators itself.
