зеркало из https://github.com/mozilla/MozDef.git
43 строки
1.7 KiB
Python
43 строки
1.7 KiB
Python
#!/usr/bin/env python
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Copyright (c) 2014 Mozilla Corporation
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from lib.alerttask import AlertTask
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from mozdef_util.query_models import SearchQuery, TermMatch, QueryStringMatch, ExistsMatch, PhraseMatch, WildcardMatch
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class TEMPLATE_ALERT_CLASSNAME(AlertTask):
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def main(self):
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# Create a query to look back the last 20 minutes
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search_query = SearchQuery(minutes=20)
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# Add search terms to our query
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search_query.add_must([
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TermMatch('category', 'helloworld'),
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ExistsMatch('details.sourceipaddress'),
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])
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self.filtersManual(search_query)
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# Search aggregations on field 'sourceipaddress'
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# keep X samples of events at most
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self.searchEventsAggregated('details.sourceipaddress', samplesLimit=10)
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# alert when >= X matching events in an aggregation
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self.walkAggregations(threshold=1)
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# Set alert properties
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def onAggregation(self, aggreg):
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# aggreg['count']: number of items in the aggregation, ex: number of failed login attempts
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# aggreg['value']: value of the aggregation field, ex: toto@example.com
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# aggreg['events']: list of events in the aggregation
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category = 'hellocategory'
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tags = ['hello', 'world']
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severity = 'WARNING'
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summary = "My first alert!"
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# Create the alert object based on these properties
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return self.createAlertDict(summary, category, tags, aggreg['events'], severity)
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