# MISP modules MISP modules are autonomous modules that can be used for expansion and other services in [MISP](https://github.com/MISP/MISP). The modules are written in Python 3 following a simple API interface. The objective is to ease the extensions of MISP functionalities without modifying core components. The API is available via a simple REST API which is independent from MISP installation or configuration. MISP modules support is included in MISP starting from version 2.4.X. ## Existing MISP modules * [DNS](modules/expansion/dns.py) - a simple module to resolve MISP attributes like hostname and domain to expand IP addresses attributes. * [passivetotal](modules/expansion/passivetotal.py) - a [passivetotal](https://www.passivetotal.org/) module to query the passivetotal passive DNS interface. * [sourcecache](modules/expansion/sourcecache.py) - a module to cache a specific link from a MISP instance. ## How to add your own MISP modules? Create your module in [modules/expansion/](modules/expansion/). The module should have at minimum three functions: * **introspection** function that returns a dict of the supported attributes (input and output) by your expansion module. * **handler** function which accepts a JSON document to expand the values and return a dictionary of the expanded values. * **version** function that returns a dict with the version and the associated meta-data including potential configurations required of the module. Don't forget to return an error key and value if an error is raised to propagate it to the MISP user-interface. If your module requires additional configuration (to be exposed via the MISP user-interface), a config array is added to the meta-data output containing all the potential configuration values: ~~~ "meta": { "description": "PassiveTotal expansion service to expand values with multiple Passive DNS sources", "config": [ "username", "password" ], ... ~~~ ## Testing your modules? MISP uses the **modules** function to discover the available MISP modules and their supported MISP attributes: ~~~ % curl -s http://127.0.0.1:6666/modules | jq . [ { "name": "passivetotal", "type": "expansion", "mispattributes": { "input": [ "hostname", "domain", "ip-src", "ip-dst" ], "output": [ "ip-src", "ip-dst", "hostname", "domain" ] }, "meta": { "description": "PassiveTotal expansion service to expand values with multiple Passive DNS sources", "config": [ "username", "password" ], "author": "Alexandre Dulaunoy", "version": "0.1" } }, { "name": "sourcecache", "type": "expansion", "mispattributes": { "input": [ "link" ], "output": [ "link" ] }, "meta": { "description": "Module to cache web pages of analysis reports, OSINT sources. The module returns a link of the cached page.", "author": "Alexandre Dulaunoy", "version": "0.1" } }, { "name": "dns", "type": "expansion", "mispattributes": { "input": [ "hostname", "domain" ], "output": [ "ip-src", "ip-dst" ] }, "meta": { "description": "Simple DNS expansion service to resolve IP address from MISP attributes", "author": "Alexandre Dulaunoy", "version": "0.1" } } ] ~~~ The MISP module service returns the available modules in a JSON array containing each module name along with their supported input attributes. Based on this information, a query can be built in a JSON format and saved as body.json: ~~~json { "hostname": "www.foo.be", "module": "dns" } ~~~ Then you can POST this JSON format query towards the MISP object server: ~~~ curl -s http://127.0.0.1:6666/query -H "Content-Type: application/json" --data @body.json -X POST ~~~ The module should output the following JSON: ~~~json { "results": [ { "types": [ "ip-src", "ip-dst" ], "values": [ "188.65.217.78" ] } ] } ~~~ ## How to contribute your own module? Fork the project, add your module, test it and make a pull-request. Modules can be also private as you can add a module in your own MISP installation.