mirror of https://github.com/MISP/misp-modules
Added EQL export test module
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"""
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Export module for converting MISP events into Endgame EQL queries
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"""
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import base64
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import csv
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import io
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import json
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import logging
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misperrors = {"error": "Error"}
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moduleinfo = {
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"version": "0.1",
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"author": "92 COS DOM",
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"description": "Export MISP event in Event Query Language",
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"module-type": ["export"]
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}
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# config fields expected from the MISP administrator
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# Default_Source: The source of the data. Typically this won't be changed from the default
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moduleconfig = ["Default_Source"]
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# Map of MISP fields => ThreatConnect fields
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fieldmap = {
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# "domain": "Host",
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# "domain|ip": "Host|Address",
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# "hostname": "hostname",
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"ip-src": "source_address",
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"ip-dst": "destination_address",
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# "ip-src|port": "Address",
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# "ip-dst|port": "Address",
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# "url": "URL",
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"filename": "file_name"
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}
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# Describe what events have what fields
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event_types = {
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"source_address": "network",
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"destination_address": "network",
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"file_name": "file"
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}
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# combine all the MISP fields from fieldmap into one big list
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mispattributes = {
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"input": list(fieldmap.keys())
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}
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def handler(q=False):
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"""
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Convert a MISP query into a CSV file matching the ThreatConnect Structured Import file format.
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Input
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q: Query dictionary
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"""
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if q is False or not q:
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return False
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# Check if we were given a configuration
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request = json.loads(q)
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config = request.get("config", {"Default_Source": ""})
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logging.info("Setting config to: %s", config)
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response = io.StringIO()
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# start parsing MISP data
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queryDict = {}
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for event in request["data"]:
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for attribute in event["Attribute"]:
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if attribute["type"] in mispattributes["input"]:
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logging.debug("Adding %s to EQL query", attribute["value"])
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event_type = event_types[fieldmap[attribute["type"]]]
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if event_type not in queryDict.keys():
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queryDict[event_type] = {}
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queryDict[event_type][fieldmap[attribute["type"]]] = attribute["value"]
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for query in queryDict.keys():
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response.write("{} where\n")
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for field in query.keys():
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response.write("\t{} == \"{}\"\n")
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return {"response": [], "data": str(base64.b64encode(bytes(response.getvalue(), 'utf-8')), 'utf-8')}
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def introspection():
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"""
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Relay the supported attributes to MISP.
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No Input
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Output
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Dictionary of supported MISP attributes
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"""
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modulesetup = {
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"responseType": "application/txt",
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"outputFileExtension": "txt",
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"userConfig": {},
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"inputSource": []
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}
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return modulesetup
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def version():
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"""
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Relay module version and associated metadata to MISP.
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No Input
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Output
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moduleinfo: metadata output containing all potential configuration values
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"""
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moduleinfo["config"] = moduleconfig
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return moduleinfo
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