зеркало из https://github.com/mozilla/MozDef.git
49 строки
1.6 KiB
Python
49 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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from lib.alerttask import AlertTask
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from mozdef_util.query_models import SearchQuery, TermMatch
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class AlertAuditdCommands(AlertTask):
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def main(self):
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self.parse_config('auditd_commands.conf', ['commands'])
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search_query = SearchQuery(minutes=30)
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auditd_match = TermMatch('category', 'auditd')
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auditd_match |= TermMatch('category', 'execve')
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search_query.add_must(auditd_match)
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command_names_matcher = None
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for name in self.config.commands.split(","):
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if command_names_matcher is None:
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command_names_matcher = TermMatch('details.processname', name)
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else:
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command_names_matcher |= TermMatch('details.processname', name)
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search_query.add_must(command_names_matcher)
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self.filtersManual(search_query)
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self.searchEventsSimple()
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self.walkEvents()
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def onEvent(self, event):
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category = 'auditd'
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tags = ['auditd_command']
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severity = 'WARNING'
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user = event['_source']['details']['originaluser']
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host = event['_source']['hostname']
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command = event['_source']['details']['processname']
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summary = "{user} on {host} executed {command}".format(
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user=user,
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host=host,
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command=command
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)
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return self.createAlertDict(summary, category, tags, [event], severity)
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