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Author SHA1 Message Date
Donncha Ó Cearbhaill
7c1e717ce0 Bump version for release v2.7.0 2025-12-19 13:45:12 +01:00
10 changed files with 8 additions and 148 deletions

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@@ -6,15 +6,15 @@
import datetime
from typing import List, Optional, Union
import betterproto
import pydantic
import betterproto
from dateutil import parser
from mvt.android.parsers.proto.tombstone import Tombstone
from mvt.common.utils import convert_datetime_to_iso
from mvt.android.parsers.proto.tombstone import Tombstone
from .artifact import AndroidArtifact
TOMBSTONE_DELIMITER = "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***"
# Map the legacy crash file keys to the new format.
@@ -129,7 +129,7 @@ class TombstoneCrashArtifact(AndroidArtifact):
# Add some extra metadata
tombstone_dict["timestamp"] = self._parse_timestamp_string(
tombstone_pb.timestamp, file_timestamp
tombstone_pb.timestamp
)
tombstone_dict["file_name"] = file_name
tombstone_dict["file_timestamp"] = convert_datetime_to_iso(file_timestamp)
@@ -249,21 +249,11 @@ class TombstoneCrashArtifact(AndroidArtifact):
def _load_timestamp_line(self, line: str, tombstone: dict) -> bool:
timestamp = line.split(":", 1)[1].strip()
tombstone["timestamp"] = self._parse_timestamp_string(timestamp, None)
tombstone["timestamp"] = self._parse_timestamp_string(timestamp)
return True
@staticmethod
def _parse_timestamp_string(
timestamp: str, fallback_timestamp: Optional[datetime.datetime]
) -> str:
"""Parse timestamp string, using fallback if timestamp is empty."""
# Handle empty or whitespace-only timestamps
if not timestamp or not timestamp.strip():
if fallback_timestamp:
return convert_datetime_to_iso(fallback_timestamp)
else:
raise ValueError("Empty timestamp with no fallback provided")
def _parse_timestamp_string(timestamp: str) -> str:
timestamp_parsed = parser.parse(timestamp)
# HACK: Swap the local timestamp to UTC, so keep the original time and avoid timezone conversion.
local_timestamp = timestamp_parsed.replace(tzinfo=datetime.timezone.utc)

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@@ -5,7 +5,6 @@
from .dumpsys_accessibility import DumpsysAccessibility
from .dumpsys_activities import DumpsysActivities
from .dumpsys_adb_state import DumpsysADBState
from .dumpsys_appops import DumpsysAppops
from .dumpsys_battery_daily import DumpsysBatteryDaily
from .dumpsys_battery_history import DumpsysBatteryHistory
@@ -14,6 +13,7 @@ from .dumpsys_getprop import DumpsysGetProp
from .dumpsys_packages import DumpsysPackages
from .dumpsys_platform_compat import DumpsysPlatformCompat
from .dumpsys_receivers import DumpsysReceivers
from .dumpsys_adb_state import DumpsysADBState
from .fs_timestamps import BugReportTimestamps
from .tombstones import Tombstones

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@@ -34,20 +34,6 @@ class DumpsysReceivers(DumpsysReceiversArtifact, BugReportModule):
self.results = results if results else {}
def check_indicators(self) -> None:
for result in self.results:
if self.indicators:
receiver_name = self.results[result][0]["receiver"]
# return IoC if the stix2 process name a substring of the receiver name
ioc = self.indicators.check_receiver_prefix(receiver_name)
if ioc:
self.results[result][0]["matched_indicator"] = ioc
self.detected.append(result)
continue
def run(self) -> None:
content = self._get_dumpstate_file()
if not content:

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@@ -7,7 +7,6 @@ import logging
from typing import Optional
from mvt.android.artifacts.tombstone_crashes import TombstoneCrashArtifact
from .base import BugReportModule
@@ -48,13 +47,6 @@ class Tombstones(TombstoneCrashArtifact, BugReportModule):
modification_time = self._get_file_modification_time(tombstone_file)
tombstone_data = self._get_file_content(tombstone_file)
# Check for empty tombstone files
if len(tombstone_data) == 0:
self.log.debug(
f"Skipping empty tombstone file {tombstone_file} (0 bytes)"
)
continue
try:
if tombstone_file.endswith(".pb"):
self.parse_protobuf(

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@@ -768,30 +768,6 @@ class Indicators:
return None
def check_receiver_prefix(self, receiver_name: str) -> Union[dict, None]:
"""Check the provided receiver name against the list of indicators.
An IoC match is detected when a substring of the receiver matches the indicator
:param app_id: App ID to check against the list of indicators
:type app_id: str
:returns: Indicator details if matched, otherwise None
"""
if not receiver_name:
return None
for ioc in self.get_iocs("app_ids"):
if ioc["value"].lower() in receiver_name.lower():
self.log.warning(
'Found a known suspicious receiver with name "%s" '
'matching indicators from "%s"',
receiver_name,
ioc["name"],
)
return ioc
return None
def check_android_property_name(self, property_name: str) -> Optional[dict]:
"""Check the android property name against the list of indicators.

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@@ -2,8 +2,8 @@
# Copyright (c) 2021-2023 The MVT Authors.
# Use of this software is governed by the MVT License 1.1 that can be found at
# https://license.mvt.re/1.1/
import datetime
import os
import datetime
import pytest
@@ -65,83 +65,3 @@ class TestTombstoneCrashArtifact:
# MVT should output the local time only:
# So original 2023-04-12 12:32:40.518290770+0200 -> 2023-04-12 12:32:40.000000
assert tombstone_result.get("timestamp") == "2023-04-12 12:32:40.518290"
def test_tombstone_pb_empty_timestamp(self):
"""Test parsing a protobuf tombstone with an empty timestamp."""
tombstone_artifact = TombstoneCrashArtifact()
artifact_path = "android_data/bugreport_tombstones/tombstone_empty_timestamp.pb"
file = get_artifact(artifact_path)
with open(file, "rb") as f:
data = f.read()
file_name = os.path.basename(artifact_path)
file_timestamp = datetime.datetime(2024, 1, 15, 10, 30, 45, 123456)
tombstone_artifact.parse_protobuf(file_name, file_timestamp, data)
assert len(tombstone_artifact.results) == 1
result = tombstone_artifact.results[0]
# When tombstone has empty timestamp, should use file modification time
assert result.get("timestamp") == "2024-01-15 10:30:45.123456"
assert result.get("pid") == 12345
assert result.get("uid") == 1000
assert result.get("signal_info", {}).get("name") == "SIGSEGV"
def test_tombstone_pb_empty_timestamp_with_threads(self):
"""Test parsing a protobuf tombstone with empty timestamp and thread info."""
tombstone_artifact = TombstoneCrashArtifact()
artifact_path = "android_data/bugreport_tombstones/tombstone_empty_timestamp_with_threads.pb"
file = get_artifact(artifact_path)
with open(file, "rb") as f:
data = f.read()
file_name = os.path.basename(artifact_path)
file_timestamp = datetime.datetime(2024, 2, 20, 14, 15, 30, 0)
tombstone_artifact.parse_protobuf(file_name, file_timestamp, data)
assert len(tombstone_artifact.results) == 1
result = tombstone_artifact.results[0]
# Verify timestamp fallback
assert result.get("timestamp") == "2024-02-20 14:15:30.000000"
assert result.get("pid") == 9876
assert result.get("uid") == 10001
assert result.get("signal_info", {}).get("name") == "SIGABRT"
assert result.get("process_name") == "ExampleThread"
def test_tombstone_pb_whitespace_timestamp(self):
"""Test parsing a protobuf tombstone with whitespace-only timestamp."""
tombstone_artifact = TombstoneCrashArtifact()
artifact_path = (
"android_data/bugreport_tombstones/tombstone_whitespace_timestamp.pb"
)
file = get_artifact(artifact_path)
with open(file, "rb") as f:
data = f.read()
file_name = os.path.basename(artifact_path)
file_timestamp = datetime.datetime(2024, 3, 10, 8, 0, 0, 0)
tombstone_artifact.parse_protobuf(file_name, file_timestamp, data)
assert len(tombstone_artifact.results) == 1
result = tombstone_artifact.results[0]
# Verify whitespace timestamp is treated as empty
assert result.get("timestamp") == "2024-03-10 08:00:00.000000"
assert result.get("pid") == 11111
assert result.get("uid") == 2000
assert result.get("signal_info", {}).get("name") == "SIGILL"
def test_tombstone_pb_empty_file(self):
"""Test that empty (0 bytes) tombstone files are handled gracefully."""
artifact_path = "android_data/bugreport_tombstones/tombstone_empty_file.pb"
file = get_artifact(artifact_path)
with open(file, "rb") as f:
data = f.read()
# Verify the file is actually empty
assert len(data) == 0, "Test file should be empty (0 bytes)"
# Empty files should be skipped in the module (not parsed)
# The actual skipping happens in the Tombstones module's run() method
# This test verifies that empty data is detectable

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@@ -1 +0,0 @@
5test/build/fingerprint:12/TEST/V1.0:user/release-keys test-rev-001(¹`0º`8èBu:r:system_app:s0J/system/bin/test_process <R SIGSEGV" SEGV_MAPERR

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@@ -1 +0,0 @@
5test/build/fingerprint:13/TEST/V2.0:user/release-keys test-rev-002(”M0•M8NBu:r:untrusted_app:s0J-/data/app/com.example.app/lib/arm64/libapp.so xRSIGABRT"SI_TKILL•M•M

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@@ -1,2 +0,0 @@
5test/build/fingerprint:11/TEST/V3.0:user/release-keys test-rev-003" (çV0èV8ÐB u:r:shell:s0J/system/bin/app_process64 RSIGILL"
ILL_ILLOPN