зеркало из https://github.com/mozilla/MozDef.git
48 строки
1.6 KiB
Python
48 строки
1.6 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) 2017 Mozilla Corporation
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#
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# a collection of alerts looking for the lack of events
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# to alert on a dead input source.
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from lib.alerttask import AlertTask
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from mozdef_util.query_models import SearchQuery, TermMatch, PhraseMatch
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class broNSM(AlertTask):
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def main(self):
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self.parse_config('deadman.conf', ['url', 'hosts'])
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for host in self.config.hosts.split(","):
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self.log.debug('Checking deadman for host: {0}'.format(host))
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search_query = SearchQuery(minutes=20)
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search_query.add_must([
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PhraseMatch("details.note", "MozillaAlive::Bro_Is_Watching_You"),
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PhraseMatch("hostname", host),
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TermMatch('category', 'bro'),
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TermMatch('source', 'notice')
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])
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self.filtersManual(search_query)
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# Search events
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self.searchEventsSimple()
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self.walkEvents(hostname=host)
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# Set alert properties
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# if no events found
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def onNoEvent(self, hostname):
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category = 'deadman'
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tags = ['bro']
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severity = 'ERROR'
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summary = ('No {0} bro healthcheck events found the past 20 minutes'.format(hostname))
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url = self.config.url
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# Create the alert object based on these properties
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return self.createAlertDict(summary, category, tags, [], severity=severity, url=url)
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