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85 lines
3.3 KiB
Python
85 lines
3.3 KiB
Python
# Mobile Verification Toolkit (MVT)
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# Copyright (c) 2021-2022 The MVT Project Authors.
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# Use of this software is governed by the MVT License 1.1 that can be found at
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# https://license.mvt.re/1.1/
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import logging
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from mvt.android.modules.adb.dumpsys_receivers import DumpsysReceivers
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from .base import BugReportModule
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log = logging.getLogger(__name__)
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INTENT_NEW_OUTGOING_SMS = "android.provider.Telephony.NEW_OUTGOING_SMS"
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INTENT_SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED"
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INTENT_DATA_SMS_RECEIVED = "android.intent.action.DATA_SMS_RECEIVED"
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INTENT_PHONE_STATE = "android.intent.action.PHONE_STATE"
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INTENT_NEW_OUTGOING_CALL = "android.intent.action.NEW_OUTGOING_CALL"
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class Receivers(BugReportModule):
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"""This module extracts details on receivers for risky activities."""
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def __init__(self, file_path=None, base_folder=None, output_folder=None,
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serial=None, fast_mode=False, log=None, results=[]):
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super().__init__(file_path=file_path, base_folder=base_folder,
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output_folder=output_folder, fast_mode=fast_mode,
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log=log, results=results)
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self.results = results if results else {}
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def check_indicators(self):
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if not self.indicators:
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return
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for intent, receivers in self.results.items():
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for receiver in receivers:
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if intent == INTENT_NEW_OUTGOING_SMS:
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self.log.info("Found a receiver to intercept outgoing SMS messages: \"%s\"",
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receiver["receiver"])
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elif intent == INTENT_SMS_RECEIVED:
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self.log.info("Found a receiver to intercept incoming SMS messages: \"%s\"",
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receiver["receiver"])
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elif intent == INTENT_DATA_SMS_RECEIVED:
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self.log.info("Found a receiver to intercept incoming data SMS message: \"%s\"",
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receiver["receiver"])
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elif intent == INTENT_PHONE_STATE:
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self.log.info("Found a receiver monitoring telephony state/incoming calls: \"%s\"",
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receiver["receiver"])
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elif intent == INTENT_NEW_OUTGOING_CALL:
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self.log.info("Found a receiver monitoring outgoing calls: \"%s\"",
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receiver["receiver"])
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ioc = self.indicators.check_app_id(receiver["package_name"])
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if ioc:
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receiver["matched_indicator"] = ioc
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self.detected.append({intent: receiver})
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continue
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def run(self):
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dumpstate_files = self._get_files_by_pattern("dumpstate-*")
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if not dumpstate_files:
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return
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content = self._get_file_content(dumpstate_files[0])
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if not content:
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return
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in_receivers = False
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lines = []
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for line in content.decode().split("\n"):
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if line.strip() == "DUMP OF SERVICE package:":
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in_receivers = True
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continue
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if not in_receivers:
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continue
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if line.strip() == "------------------------------------------------------------------------------":
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break
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lines.append(line)
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self.results = DumpsysReceivers.parse_receiver_resolver_table("\n".join(lines))
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