mirror of https://github.com/MISP/misp-modules
				
				
				
			
		
			
				
	
	
		
			59 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			59 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
# -*- coding: utf-8 -*-
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import json
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from . import check_input_attribute, standard_error_message
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from pyipasnhistory import IPASNHistory
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from pymisp import MISPAttribute, MISPEvent, MISPObject
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misperrors = {'error': 'Error'}
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mispattributes = {'input': ['ip-src', 'ip-dst'], 'format': 'misp_standard'}
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moduleinfo = {'version': '0.2', 'author': 'Raphaël Vinot',
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              'description': 'Query an IP ASN history service (https://github.com/CIRCL/IP-ASN-history.git)',
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              'module-type': ['expansion', 'hover']}
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def parse_result(attribute, values):
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    event = MISPEvent()
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    initial_attribute = MISPAttribute()
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    initial_attribute.from_dict(**attribute)
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    event.add_attribute(**initial_attribute)
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    mapping = {'asn': ('AS', 'asn'), 'prefix': ('ip-src', 'subnet-announced')}
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    print(values)
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    for last_seen, response in values['response'].items():
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        asn = MISPObject('asn')
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        asn.add_attribute('last-seen', **{'type': 'datetime', 'value': last_seen})
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        for feature, attribute_fields in mapping.items():
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            attribute_type, object_relation = attribute_fields
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            asn.add_attribute(object_relation, **{'type': attribute_type, 'value': response[feature]})
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        asn.add_reference(initial_attribute.uuid, 'related-to')
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        event.add_object(**asn)
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    event = json.loads(event.to_json())
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    return {key: event[key] for key in ('Attribute', 'Object')}
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def handler(q=False):
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    if q is False:
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        return False
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    request = json.loads(q)
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    if not request.get('attribute') or not check_input_attribute(request['attribute']):
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        return {'error': f'{standard_error_message}, which should contain at least a type, a value and an uuid.'}
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    if request['attribute']['type'] not in mispattributes['input']:
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        return {'error': 'Unsupported attribute type.'}
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    toquery = request['attribute']['value']
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    ipasn = IPASNHistory()
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    values = ipasn.query(toquery)
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    if not values:
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        misperrors['error'] = 'Unable to find the history of this IP'
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        return misperrors
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    return {'results': parse_result(request['attribute'], values)}
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def introspection():
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    return mispattributes
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def version():
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    return moduleinfo
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