Apk Analyzer Server

Backend part for Android app Apk Analyzer. Provided functionality:

• Store Android APK's metadata
• Perform repackaged APK detection

Routes

App database

Following section lists all available routes for management of app metadata database

/app_records/{id}

Metadata report about application with given ID.

/app_records/{id}/upload_records

List of all uploads of given APK. If one APK file is uploaded multiple times, only one metadata entry is saved. This path shows IDs of all Android clients with upload time and analysis mode.

/app_records/{id}/permissions

List of all permissions of given APK.

/app_records/{id}/filtered_drawables

List of all application specific image files with their hashes.

/app_records?package_name={package_name}&version_name={version_name}

Metadata report about applications matching specified filter criteria.

/app_records/names

List of most common app names in our APK metadata database

/app_records/names_versions

List of most common app versions in our APK metadata database

/app_records [POST]

Endpoint accepting APK metadata uploaded from Android clients.

/usage

Basic database usage info (number of apps, number of upload records, etc...)

Repackaged Detection

/repackaged_detection?app_hash={hash}

Endpoint accepting hash of application for detection. This method runs repackaged detection algorithm from Android client side.

/repackaged_detection/{id}

This method runs repackaged detection algorithm for app with given ID. Useful for testing.

/repackaged_detection/{id}?cache=false

This method runs repackaged detection algorithm for app with given ID. Cached results are ignored and recalculated.

/repackaged_results/{id}

Displays results of repackaged detection with given ID. Contains detection results, number of similar apps, percentage of majority signature etc..

/repackaged_results/statistics

Number of detections and aggregate results of detections.

Technical spec

Prefix	Verb	URI Pattern	Controller#Action
names_app_records	GET	/app_records/names(.:format)	app_records#names
names_versions_app_records	GET	/app_records/names_versions(.:format)	app_records#names_versions
app_record_upload_records	GET	/app_records/:app_record_id/upload_records(.:format)	upload_records#index
app_record_upload_record	GET	/app_records/:app_record_id/upload_records/:id(.:format)	upload_records#show
app_record_permissions	GET	/app_records/:app_record_id/permissions(.:format)	permissions#index
app_record_permission	GET	/app_records/:app_record_id/permissions/:id(.:format)	permissions#show
app_record_filtered_drawables	GET	/app_records/:app_record_id/filtered_drawables(.:format)	filtered_drawables#index
app_record_filtered_drawable	GET	/app_records/:app_record_id/filtered_drawables/:id(.:format)	filtered_drawables#show
app_records	GET	/app_records(.:format)	app_records#index
	POST	/app_records(.:format)	app_records#create
app_record	GET	/app_records/:id(.:format)	app_records#show
repackaged_detection_index	GET	/repackaged_detection(.:format)	repackaged_detection#index
repackaged_detection	GET	/repackaged_detection/:id(.:format)	repackaged_detection#show
statistics_repackaged_results	GET	/repackaged_results/statistics(.:format)	repackaged_results#statistics
repackaged_results	GET	/repackaged_results(.:format)	repackaged_results#index
repackaged_result	GET	/repackaged_results/:id(.:format)	repackaged_results#show
usage_index	GET	/usage(.:format)	usage#index
available_index	GET	/available(.:format)	available#index

Technologies

• Ruby on Rails
• PostgreSQL database
• Deployed on [Heroku] (http://apk-analyzer.herokuapp.com/)