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4706: detect Android media cards.

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This commit is contained in:
Raman 2019-03-13 15:24:56 -04:00
parent c95b8e995e
commit c8fc5a9765
2 changed files with 66 additions and 1 deletions
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4
RecentActivity/src/org/sleuthkit/autopsy/recentactivity/Bundle.properties-MERGED
View File

@ -2,6 +2,9 @@ cannotBuildXmlParser=Unable to build XML parser:
cannotLoadSEUQA=Unable to load Search Engine URL Query Analyzer settings file, SEUQAMappings.xml:
cannotParseXml=Unable to parse XML file:
ChromeCacheExtractor.moduleName=ChromeCacheExtractor
DataSourceUsage_AndroidMedia=Android Media Card
DataSourceUsage_FlashDrive=Flash Drive
# {0} - OS name
DataSourceUsageAnalyzer.customVolume.label=OS Drive ({0})
DataSourceUsageAnalyzer.parentModuleName=Recent Activity
Extract.indexError.message=Failed to index artifact for keyword search.
@ -180,6 +183,7 @@ RecentDocumentsByLnk.parentModuleName.noSpace=RecentActivity
RecentDocumentsByLnk.parentModuleName=Recent Activity
RegRipperFullNotFound=Full version RegRipper executable not found.
RegRipperNotFound=Autopsy RegRipper executable not found.
# {0} - file name
SearchEngineURLQueryAnalyzer.init.exception.msg=Unable to find {0}.
SearchEngineURLQueryAnalyzer.moduleName.text=Search Engine
SearchEngineURLQueryAnalyzer.engineName.none=NONE

63
RecentActivity/src/org/sleuthkit/autopsy/recentactivity/DataSourceUsageAnalyzer.java
View File

@ -32,7 +32,10 @@ import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.BlackboardArtifact;
import org.sleuthkit.datamodel.BlackboardAttribute;
import org.sleuthkit.datamodel.Content;
import org.sleuthkit.datamodel.FileSystem;
import org.sleuthkit.datamodel.Image;
import org.sleuthkit.datamodel.TskCoreException;
import org.sleuthkit.datamodel.TskData;
/**
* Analyzes data sources using heuristics to determine which types of operating
@ -43,6 +46,9 @@ import org.sleuthkit.datamodel.TskCoreException;
class DataSourceUsageAnalyzer extends Extract {
private static final Logger logger = Logger.getLogger(DataSourceUsageAnalyzer.class.getName());
private static final int FAT_EXFAT_FLAGS = TskData.TSK_FS_TYPE_ENUM.TSK_FS_TYPE_FAT16.getValue() | TskData.TSK_FS_TYPE_ENUM.TSK_FS_TYPE_FAT32.getValue() | TskData.TSK_FS_TYPE_ENUM.TSK_FS_TYPE_EXFAT.getValue();
private static final long HUNDRED_GB = 100*1024*1024*1024l;
private static final String ANDROID_MEDIACARD_PATHS[] = {"/.android_secure", "/android", "/audio", "/photos", "/dcim", "/music", "/pictures", "/videos"}; //NON-NLS
private Content dataSource;
@Messages({
@ -62,13 +68,18 @@ class DataSourceUsageAnalyzer extends Extract {
}
private void createDataSourceUsageArtifacts() throws TskCoreException {
createOSInfoDataSourceUsageArtifacts();
createAndroidMediaCardArtifacts();
}
/**
* Create TSK_DATA_SOURCE_USAGE artifacts based on OS_INFO artifacts
* existing as well as other criteria such as specific paths existing.
*
* @throws TskCoreException
*/
private void createDataSourceUsageArtifacts() throws TskCoreException {
private void createOSInfoDataSourceUsageArtifacts() throws TskCoreException {
boolean windowsOsDetected = false;
List<BlackboardArtifact> osInfoArtifacts = tskCase.getBlackboardArtifacts(BlackboardArtifact.ARTIFACT_TYPE.TSK_OS_INFO);
for (BlackboardArtifact osInfoArt : osInfoArtifacts) {
@ -143,4 +154,54 @@ class DataSourceUsageAnalyzer extends Extract {
}
}
}
/**
* Checks to see if the data source might be an Android media card or a Flash drive.
* If so, creates TSK_DATA_SOURCE_USAGE artifact.
*
* @return true if any specified files exist false if none exist
*
* @throws TskCoreException
*/
@Messages({
"DataSourceUsage_AndroidMedia=Android Media Card",
"DataSourceUsage_FlashDrive=Flash Drive"
})
private void createAndroidMediaCardArtifacts() throws TskCoreException {
if (dataSource instanceof Image) {
Image image = (Image) dataSource;
try {
if (image.getSize() > HUNDRED_GB) {
return;
}
List<FileSystem> fileSystems = image.getFileSystems();
if (fileSystems.isEmpty() || fileSystems.size() > 1) {
return;
}
FileSystem fileSystem = fileSystems.get(0);
if ( fileSystem == null || (fileSystem.getFsType().getValue() & FAT_EXFAT_FLAGS) == 0) {
return ;
}
FileManager fileManager = currentCase.getServices().getFileManager();
for (String path : ANDROID_MEDIACARD_PATHS ) {
for (AbstractFile file : fileManager.findFiles(dataSource, FilenameUtils.getName(path), FilenameUtils.getPath(path))) {
if ((file.getParentPath() + file.getName()).equalsIgnoreCase(path)) {
createDataSourceUsageArtifact(Bundle.DataSourceUsage_AndroidMedia());
return;
}
}
}
// If none of the Android paths is found but it meets other criteria, it might be just a flash drive
createDataSourceUsageArtifact(Bundle.DataSourceUsage_FlashDrive());
} catch (TskCoreException ex) {
logger.log(Level.SEVERE, "Exception while checking image: {0} for Andriod media card", image.getName() + ex.getMessage()); //NON-NLS
}
}
}
}