mirror of https://github.com/CIRCL/AIL-framework
142 lines
4.6 KiB
Python
Executable File
142 lines
4.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*-coding:UTF-8 -*
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"""
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The Tracker_Regex trackers module
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===================
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This Module is used for regex tracking.
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It processes every item coming from the global module and test the regex
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"""
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import os
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import sys
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import time
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sys.path.append(os.environ['AIL_BIN'])
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##################################
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# Import Project packages
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##################################
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from modules.abstract_module import AbstractModule
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from lib.objects import ail_objects
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from lib.ConfigLoader import ConfigLoader
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from lib import Tracker
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from exporter.MailExporter import MailExporterTracker
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from exporter.WebHookExporter import WebHookExporterTracker
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class Tracker_Regex(AbstractModule):
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"""
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Tracker_Regex module for AIL framework
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"""
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def __init__(self, queue=True):
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super(Tracker_Regex, self).__init__(queue=queue)
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config_loader = ConfigLoader()
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self.pending_seconds = 5
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self.max_execution_time = config_loader.get_config_int(self.module_name, "max_execution_time")
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# refresh Tracked Regex
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self.tracked_regexs = Tracker.get_tracked_regexs()
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self.last_refresh = time.time()
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self.obj = None
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# Exporter
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self.exporters = {'mail': MailExporterTracker(),
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'webhook': WebHookExporterTracker()}
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self.redis_logger.info(f"Module: {self.module_name} Launched")
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def compute(self, message):
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# refresh Tracked regex
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if self.last_refresh < Tracker.get_tracker_last_updated_by_type('regex'):
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self.tracked_regexs = Tracker.get_tracked_regexs()
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self.last_refresh = time.time()
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self.redis_logger.debug('Tracked regex refreshed')
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print('Tracked regex refreshed')
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obj = self.get_obj()
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obj_id = obj.get_id()
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obj_type = obj.get_type()
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# Object Filter
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if obj_type not in self.tracked_regexs:
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return None
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content = obj.get_content()
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for dict_regex in self.tracked_regexs[obj_type]:
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matches = self.regex_finditer(dict_regex['regex'], obj_id, content)
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if matches:
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self.new_tracker_found(dict_regex['tracked'], 'regex', obj, matches)
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def extract_matches(self, re_matches, limit=500, lines=5):
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matches = []
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content = self.obj.get_content()
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l_content = len(content)
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for match in re_matches:
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start = match[0]
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value = match[2]
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end = match[1]
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# Start
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if start > limit:
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i_start = start - limit
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else:
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i_start = 0
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str_start = content[i_start:start].splitlines()
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if len(str_start) > lines:
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str_start = '\n'.join(str_start[-lines + 1:])
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else:
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str_start = content[i_start:start]
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# End
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if end + limit > l_content:
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i_end = l_content
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else:
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i_end = end + limit
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str_end = content[end:i_end].splitlines()
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if len(str_end) > lines:
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str_end = '\n'.join(str_end[:lines + 1])
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else:
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str_end = content[end:i_end]
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matches.append((value, f'{str_start}{value}{str_end}'))
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return matches
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def new_tracker_found(self, tracker_name, tracker_type, obj, re_matches):
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obj_id = obj.get_id()
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matches = None
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for tracker_uuid in Tracker.get_trackers_by_tracked_obj_type(tracker_type, obj.get_type(), tracker_name):
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tracker = Tracker.Tracker(tracker_uuid)
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# Filter Object
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filters = tracker.get_filters()
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if ail_objects.is_filtered(obj, filters):
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continue
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print(f'new tracked regex found: {tracker_name} in {self.obj.get_global_id()}')
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self.redis_logger.warning(f'new tracked regex found: {tracker_name} in {self.obj.get_global_id()}')
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tracker.add(obj.get_type(), obj.get_subtype(r_str=True), obj_id)
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for tag in tracker.get_tags():
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if obj.get_type() == 'item':
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self.add_message_to_queue(message=tag, queue='Tags')
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else:
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obj.add_tag(tag)
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if tracker.mail_export():
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if not matches:
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matches = self.extract_matches(re_matches)
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self.exporters['mail'].export(tracker, obj, matches)
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if tracker.webhook_export():
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self.exporters['webhook'].export(tracker, obj)
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if __name__ == "__main__":
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module = Tracker_Regex()
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module.run()
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