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100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
# Mobile Verification Toolkit (MVT)
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# Copyright (c) 2021-2023 The MVT 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.artifacts.dumpsys_appops import DumpsysAppopsArtifact
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from mvt.common.indicators import Indicators
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from ..utils import get_artifact
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class TestDumpsysAppopsArtifact:
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def test_parsing(self):
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da = DumpsysAppopsArtifact()
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da.log = logging
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file = get_artifact("android_data/dumpsys_appops.txt")
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with open(file) as f:
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data = f.read()
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assert len(da.results) == 0
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da.parse(data)
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assert len(da.results) == 13
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assert da.results[0]["package_name"] == "com.android.phone"
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assert da.results[0]["uid"] == "0"
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assert len(da.results[0]["permissions"]) == 1
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assert da.results[0]["permissions"][0]["name"] == "MANAGE_IPSEC_TUNNELS"
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assert da.results[0]["permissions"][0]["mode"] == "allow"
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assert da.results[6]["package_name"] == "com.sec.factory.camera"
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assert len(da.results[6]["permissions"][1]["entries"]) == 1
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assert len(da.results[11]["permissions"]) == 4
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wake_lock = next(
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permission
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for permission in da.results[11]["permissions"]
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if permission["name"] == "WAKE_LOCK"
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)
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assert wake_lock["entries"][0]["duration"] == "+126ms"
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def test_running_and_attribution_are_retained(self):
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da = DumpsysAppopsArtifact()
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da.parse(
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""" Uid 0:
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state=cch
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Package com.example:
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CAMERA (allow):
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camera=[
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Access: [fg-s] 2025-01-01 00:00:00.000 (-1s) duration=+2ms
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]
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RECORD_AUDIO (allow):
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Running start at: +3s
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"""
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)
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camera = da.results[0]["permissions"][0]["entries"][0]
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running = da.results[0]["permissions"][1]["entries"][0]
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assert camera["attribution"] == "camera"
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assert running["event"] == "running"
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assert running["relative_time"] == "+3s"
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def test_ioc_check(self, indicator_file):
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da = DumpsysAppopsArtifact()
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da.log = logging
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file = get_artifact("android_data/dumpsys_appops.txt")
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with open(file) as f:
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data = f.read()
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da.parse(data)
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ind = Indicators(log=logging.getLogger())
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ind.parse_stix2(indicator_file)
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ind.ioc_collections[0]["app_ids"].append("com.facebook.katana")
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da.indicators = ind
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assert len(da.alertstore.alerts) == 0
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da.check_indicators()
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detected_by_ioc = [
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alert
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for alert in da.alertstore.alerts
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if alert.matched_indicator is not None
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]
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detected_by_permission_heuristic = [
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alert
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for alert in da.alertstore.alerts
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if all(
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[
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perm["name"] == "REQUEST_INSTALL_PACKAGES"
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for perm in alert.event["permissions"]
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]
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)
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]
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assert len(da.alertstore.alerts) == 3
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assert len(detected_by_ioc) == 1
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assert detected_by_ioc[0].matched_indicator is not None
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assert detected_by_ioc[0].event_time == max(
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entry["timestamp"]
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for permission in detected_by_ioc[0].event["permissions"]
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for entry in permission.get("entries", [])
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if entry.get("timestamp")
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)
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assert len(detected_by_permission_heuristic) == 2
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