mirror of
https://github.com/overcuriousity/autopsy-flatpak.git
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151 lines
7.1 KiB
Python
151 lines
7.1 KiB
Python
"""
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Autopsy Forensic Browser
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Copyright 2016 Basis Technology Corp.
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Contact: carrier <at> sleuthkit <dot> org
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from java.io import File
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from java.io import FileInputStream
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from java.io import InputStream
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from java.lang import Class
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from java.lang import ClassNotFoundException
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from java.math import BigInteger
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from java.nio import ByteBuffer
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from java.util.logging import Level
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from java.util import ArrayList
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from org.sleuthkit.autopsy.casemodule import Case
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from org.sleuthkit.autopsy.casemodule.services import Blackboard
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from org.sleuthkit.autopsy.casemodule.services import FileManager
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from org.sleuthkit.autopsy.coreutils import Logger
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from org.sleuthkit.autopsy.coreutils import MessageNotifyUtil
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from org.sleuthkit.autopsy.datamodel import ContentUtils
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from org.sleuthkit.autopsy.ingest import IngestJobContext
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from org.sleuthkit.datamodel import AbstractFile
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from org.sleuthkit.datamodel import BlackboardArtifact
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from org.sleuthkit.datamodel import BlackboardAttribute
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from org.sleuthkit.datamodel import Content
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from org.sleuthkit.datamodel import TskCoreException
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import traceback
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import general
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"""
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Parses cache files that Android maintains for Wifi and cell towers. Adds GPS points to blackboard.
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"""
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class CacheLocationAnalyzer(general.AndroidComponentAnalyzer):
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def __init__(self):
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self._logger = Logger.getLogger(self.__class__.__name__)
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"""
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cache.cell stores mobile tower GPS locations and cache.wifi stores GPS
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and MAC info from Wifi points.
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"""
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def analyze(self, dataSource, fileManager, context):
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try:
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abstractFiles = fileManager.findFiles(dataSource, "cache.cell")
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abstractFiles.addAll(fileManager.findFiles(dataSource, "cache.wifi"))
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for abstractFile in abstractFiles:
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if abstractFile.getSize() == 0:
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continue
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try:
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jFile = File(Case.getCurrentCase().getTempDirectory(), str(abstractFile.getId()) + abstractFile.getName())
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ContentUtils.writeToFile(abstractFile, jFile, context.dataSourceIngestIsCancelled)
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self.__findGeoLocationsInFile(jFile, abstractFile)
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except Exception as ex:
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self._logger.log(Level.SEVERE, "Error parsing cached location files", ex)
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self._logger.log(Level.SEVERE, traceback.format_exc())
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except TskCoreException as ex:
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self._logger.log(Level.SEVERE, "Error finding cached location files", ex)
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self._logger.log(Level.SEVERE, traceback.format_exc())
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def __findGeoLocationsInFile(self, file, abstractFile):
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tempBytes = bytearray([0] * 2) # will temporarily hold bytes to be converted into the correct data types
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try:
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inputStream = FileInputStream(file)
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inputStream.read(tempBytes) # version
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tempBytes = bytearray([0] * 2)
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inputStream.read(tempBytes) # number of location entries
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iterations = BigInteger(tempBytes).intValue()
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for i in range(iterations): # loop through every entry
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tempBytes = bytearray([0] * 2)
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inputStream.read(tempBytes)
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tempBytes = bytearray([0])
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inputStream.read(tempBytes)
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while BigInteger(tempBytes).intValue() != 0: # pass through non important values until the start of accuracy(around 7-10 bytes)
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if 0 > inputStream.read(tempBytes):
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break # we've passed the end of the file, so stop
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tempBytes = bytearray([0] * 3)
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inputStream.read(tempBytes)
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if BigInteger(tempBytes).intValue() <= 0: # This refers to a location that could not be calculated
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tempBytes = bytearray([0] * 28) # read rest of the row's bytes
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inputStream.read(tempBytes)
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continue
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accuracy = "" + BigInteger(tempBytes).intValue()
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tempBytes = bytearray([0] * 4)
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inputStream.read(tempBytes)
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confidence = "" + BigInteger(tempBytes).intValue()
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tempBytes = bytearray([0] * 8)
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inputStream.read(tempBytes)
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latitude = CacheLocationAnalyzer.toDouble(bytes)
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tempBytes = bytearray([0] * 8)
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inputStream.read(tempBytes)
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longitude = CacheLocationAnalyzer.toDouble(bytes)
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tempBytes = bytearray([0] * 8)
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inputStream.read(tempBytes)
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timestamp = BigInteger(tempBytes).longValue() / 1000
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attributes = ArrayList()
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artifact = abstractFile.newArtifact(BlackboardArtifact.ARTIFACT_TYPE.TSK_GPS_TRACKPOINT)
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attributes.add(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_GEO_LATITUDE, AndroidAnalyzer.MODULE_NAME, latitude))
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attributes.add(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_GEO_LONGITUDE, AndroidAnalyzer.MODULE_NAME, longitude))
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attributes.add(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_DATETIME, AndroidModuleFactorymodule.Name, timestamp))
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attributes.add(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PROG_NAME, AndroidAnalyzer.MODULE_NAME,
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file.getName() + "Location History"))
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artifact.addAttributes(attributes)
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#Not storing these for now.
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# artifact.addAttribute(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_VALUE.getTypeID(), AndroidModuleFactorymodule.moduleName, accuracy))
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# artifact.addAttribute(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_COMMENT.getTypeID(), AndroidModuleFactorymodule.moduleName, confidence))
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try:
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# index the artifact for keyword search
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blackboard = Case.getCurrentCase().getServices().getBlackboard()
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blackboard.indexArtifact(artifact)
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except Blackboard.BlackboardException as ex:
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self._logger.log(Level.SEVERE, "Unable to index blackboard artifact " + artifact.getArtifactID(), ex)
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self._logger.log(Level.SEVERE, traceback.format_exc())
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MessageNotifyUtil.Notify.error("Failed to index GPS trackpoint artifact for keyword search.", artifact.getDisplayName())
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except Exception as ex:
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self._logger.log(Level.SEVERE, "Error parsing Cached GPS locations to blackboard", ex)
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self._logger.log(Level.SEVERE, traceback.format_exc())
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def toDouble(byteArray):
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return ByteBuffer.wrap(byteArray).getDouble()
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