Restarting-Free Runtime Change Handling for Android Apps ∗
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Android (Operating System) 1 Android (Operating System)
Android (operating system) 1 Android (operating system) Android Home screen displayed by Samsung Nexus S with Google running Android 2.3 "Gingerbread" Company / developer Google Inc., Open Handset Alliance [1] Programmed in C (core), C++ (some third-party libraries), Java (UI) Working state Current [2] Source model Free and open source software (3.0 is currently in closed development) Initial release 21 October 2008 Latest stable release Tablets: [3] 3.0.1 (Honeycomb) Phones: [3] 2.3.3 (Gingerbread) / 24 February 2011 [4] Supported platforms ARM, MIPS, Power, x86 Kernel type Monolithic, modified Linux kernel Default user interface Graphical [5] License Apache 2.0, Linux kernel patches are under GPL v2 Official website [www.android.com www.android.com] Android is a software stack for mobile devices that includes an operating system, middleware and key applications.[6] [7] Google Inc. purchased the initial developer of the software, Android Inc., in 2005.[8] Android's mobile operating system is based on a modified version of the Linux kernel. Google and other members of the Open Handset Alliance collaborated on Android's development and release.[9] [10] The Android Open Source Project (AOSP) is tasked with the maintenance and further development of Android.[11] The Android operating system is the world's best-selling Smartphone platform.[12] [13] Android has a large community of developers writing applications ("apps") that extend the functionality of the devices. There are currently over 150,000 apps available for Android.[14] [15] Android Market is the online app store run by Google, though apps can also be downloaded from third-party sites. -
Android Operating System
Software Engineering ISSN: 2229-4007 & ISSN: 2229-4015, Volume 3, Issue 1, 2012, pp.-10-13. Available online at http://www.bioinfo.in/contents.php?id=76 ANDROID OPERATING SYSTEM NIMODIA C. AND DESHMUKH H.R. Babasaheb Naik College of Engineering, Pusad, MS, India. *Corresponding Author: Email- [email protected], [email protected] Received: February 21, 2012; Accepted: March 15, 2012 Abstract- Android is a software stack for mobile devices that includes an operating system, middleware and key applications. Android, an open source mobile device platform based on the Linux operating system. It has application Framework,enhanced graphics, integrated web browser, relational database, media support, LibWebCore web browser, wide variety of connectivity and much more applications. Android relies on Linux version 2.6 for core system services such as security, memory management, process management, network stack, and driver model. Architecture of Android consist of Applications. Linux kernel, libraries, application framework, Android Runtime. All applications are written using the Java programming language. Android mobile phone platform is going to be more secure than Apple’s iPhone or any other device in the long run. Keywords- 3G, Dalvik Virtual Machine, EGPRS, LiMo, Open Handset Alliance, SQLite, WCDMA/HSUPA Citation: Nimodia C. and Deshmukh H.R. (2012) Android Operating System. Software Engineering, ISSN: 2229-4007 & ISSN: 2229-4015, Volume 3, Issue 1, pp.-10-13. Copyright: Copyright©2012 Nimodia C. and Deshmukh H.R. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. -
History and Evolution of the Android OS
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Springer - Publisher Connector CHAPTER 1 History and Evolution of the Android OS I’m going to destroy Android, because it’s a stolen product. I’m willing to go thermonuclear war on this. —Steve Jobs, Apple Inc. Android, Inc. started with a clear mission by its creators. According to Andy Rubin, one of Android’s founders, Android Inc. was to develop “smarter mobile devices that are more aware of its owner’s location and preferences.” Rubin further stated, “If people are smart, that information starts getting aggregated into consumer products.” The year was 2003 and the location was Palo Alto, California. This was the year Android was born. While Android, Inc. started operations secretly, today the entire world knows about Android. It is no secret that Android is an operating system (OS) for modern day smartphones, tablets, and soon-to-be laptops, but what exactly does that mean? What did Android used to look like? How has it gotten where it is today? All of these questions and more will be answered in this brief chapter. Origins Android first appeared on the technology radar in 2005 when Google, the multibillion- dollar technology company, purchased Android, Inc. At the time, not much was known about Android and what Google intended on doing with it. Information was sparse until 2007, when Google announced the world’s first truly open platform for mobile devices. The First Distribution of Android On November 5, 2007, a press release from the Open Handset Alliance set the stage for the future of the Android platform. -
Tutorial: Setup for Android Development
Tutorial: Setup for Android Development Adam C. Champion, Ph.D. CSE 5236: Mobile Application Development Autumn 2019 Based on material from C. Horstmann [1], J. Bloch [2], C. Collins et al. [4], M.L. Sichitiu (NCSU), V. Janjic (Imperial College London), CSE 2221 (OSU), and other sources 1 Outline • Getting Started • Android Programming 2 Getting Started (1) • Need to install Java Development Kit (JDK) (not Java Runtime Environment (JRE)) to write Android programs • Download JDK for your OS: https://adoptopenjdk.net/ * • Alternatively, for OS X, Linux: – OS X: Install Homebrew (http://brew.sh) via Terminal, – Linux: • Debian/Ubuntu: sudo apt install openjdk-8-jdk • Fedora/CentOS: yum install java-1.8.0-openjdk-devel * Why OpenJDK 8? Oracle changed Java licensing (commercial use costs $$$); Android SDK tools require version 8. 3 Getting Started (2) • After installing JDK, download Android SDK from http://developer.android.com • Simplest: download and install Android Studio bundle (including Android SDK) for your OS • Alternative: brew cask install android- studio (Mac/Homebrew) • We’ll use Android Studio with SDK included (easiest) 4 Install! 5 Getting Started (3) • Install Android Studio directly (Windows, Mac); unzip to directory android-studio, then run ./android-studio/bin/studio64.sh (Linux) 6 Getting Started (4) • Strongly recommend testing Android Studio menu → Preferences… or with real Android device File → Settings… – Android emulator: slow – Faster emulator: Genymotion [14], [15] – Install USB drivers for your Android device! • Bring up Android SDK Manager – Install Android 5.x–8.x APIs, Google support repository, Google Play services – Don’t worry about non-x86 Now you’re ready for Android development! system images 7 Outline • Getting Started • Android Programming 8 Introduction to Android • Popular mobile device Mobile OS Market Share OS: 73% of worldwide Worldwide (Jul. -
New Youtube Downloader Android Youtube Video Downloader
new youtube downloader android Youtube Video Downloader. Youtube Video Downloader is an Android app to download YouTube videos in different qualities in a matter of seconds so you can enjoy them as often as you want without having to use up your data or be connected to a WiFi network. The way Youtube Video Downloader works couldn't be simpler. Open the app to access the mobile version of YouTube. You'll have the option to interact with the video site as you usually would – browsing through the videos, doing searches, and enjoying your favorite content. When you find a video you like and want to download, you can do it by tapping a single button and in seconds you'll have it on your smartphone. The good thing about Youtube Video Downloader is that you can download the content – both the video (with and without audio) and the audio alone – in different formats. You can also pick from a certain quality range so you have the video or audio exactly how you want it. If despite the ease of use you don't fancy having to open Youtube Video Downloader every time you want to download something, you can always take advantage of a feature that lets you share the videos you're viewing on YouTube with the app. When you do you can pick the format you like best and download it without it interrupting your normal YouTube use. New Youtube video downloader. New YouTube video downloader is a tool that lets you watch and download all the videos you want. -
Tackling Runtime-Based Obfuscation in Android with TIRO
Tackling runtime-based obfuscation in Android with TIRO Michelle Y. Wong and David Lie University of Toronto Abstract analysis as well for efficiency and greater code cover- age [1,2, 12]. As a result, malware authors have increas- Obfuscation is used in malware to hide malicious activ- ingly turned to obfuscation to hide their actions and con- ity from manual or automatic program analysis. On the fuse both static and dynamic analysis tools. The presence Android platform, malware has had a history of using ob- of obfuscation does not indicate malicious intent in and fuscation techniques such as Java reflection, code pack- of itself, as many legitimate applications employ code ing and value encryption. However, more recent mal- obfuscation to protect intellectual property. However, be- ware has turned to employing obfuscation that subverts cause of its prevalence among malware, it is crucial that the integrity of the Android runtime (ART or Dalvik), a malware analyzers have the ability to deobfuscate An- technique we call runtime-based obfuscation. Once sub- droid applications in order to determine if an application verted, the runtime no longer follows the normally ex- is indeed malicious or not. pected rules of code execution and method invocation, There exist a variety of obfuscation techniques on the raising the difficulty of deobfuscating and analyzing mal- Android platform. Many common techniques, such as ware that use these techniques. Java reflection, value encryption, dynamically decrypt- In this work, we propose TIRO, a deobfuscation ing and loading code, and calling native methods have framework for Android using an approach of Target- been identified and discussed in the literature [11,22,26]. -
The Future Going Back in Time to Abuse Android's
Back To The Future Going Back In Time To Abuse Android’s JIT !1 $ whoami • Benjamin Watson • Director of Security Research @VerSprite Security • Android • @rotlogix !2 Agenda • Inspiration and Overview • Android 4.4.4 JIT Internals & Abuse • Android 7.1.1 JIT Internals & Abuse • Android Oreo • Tools • Future Challenges • Conclusion !3 Back To The Future Going Back In Time To Abuse Android’s JIT !4 Making Android Malware Great The First Time !5 On The Shoulders Of Giants !6 On the Shoulders of Giants @mattifestation @rwincey !7 Shellcode Execution in .NET using MSIL- Based JIT Overwrite • @mattifestation discovered the CPBLK opcode, which is effectively the MSIL equivalent to memcpy • He used to this opcode to overwrite a JIT’ed .NET method with shellcode • https://www.exploit-monday.com/2013/04/ MSILbasedShellcodeExec.html !8 Java Shellcode Execution • @rwincey uses the Unsafe API to overwrite a JIT’ed Java method with shellcode • https://www.slideshare.net/RyanWincey/java- shellcodeoffice !9 On the Shoulders of Giants • After absorbing Matt and Ryan’s research, I was left with one question … “ Is this also possible in Android? “ … !10 Motivation • These techniques discussed today are post-exploitation in nature • We already have installed a malicious application or gain code execution in Java through an arbitrary application • Our goal is to execute shellcode in memory entirely through Java without loading additional shared-libraries, or utilizing JNI !11 Motivation • This means that a simple “application” can have a self- contained solution -
Arxiv:1902.02610V2 [Cs.SE] 14 Feb 2019
Noname manuscript No. (will be inserted by the editor) To the Attention of Mobile Software Developers: Guess What, Test your App! Luis Cruz · Rui Abreu · David Lo the date of receipt and acceptance should be inserted later Abstract Software testing is an important phase in the software development life- cycle because it helps in identifying bugs in a software system before it is shipped into the hand of its end users. There are numerous studies on how developers test general-purpose software applications. The idiosyncrasies of mobile software applications, however, set mobile apps apart from general-purpose systems (e.g., desktop, stand-alone applications, web services). This paper investigates working habits and challenges of mobile software developers with respect to testing. A key finding of our exhaustive study, using 1000 Android apps, demonstrates that mo- bile apps are still tested in a very ad hoc way, if tested at all. However, we show that, as in other types of software, testing increases the quality of apps (demon- strated in user ratings and number of code issues). Furthermore, we find evidence that tests are essential when it comes to engaging the community to contribute to mobile open source software. We discuss reasons and potential directions to address our findings. Yet another relevant finding of our study is that Continuous Integration and Continuous Deployment (CI/CD) pipelines are rare in the mobile apps world (only 26% of the apps are developed in projects employing CI/CD) { we argue that one of the main reasons is due to the lack of exhaustive and automatic testing. -
Race Detection for Android Applications
Race Detection for Android Applications Pallavi Maiya Aditya Kanade Rupak Majumdar Indian Institute of Science Indian Institute of Science MPI-SWS [email protected] [email protected] [email protected] Abstract asynchronous tasks to each other. Asynchronous tasks running on the same thread may themselves be reordered non-deterministically Programming environments for smartphones expose a concur- subject to certain rules. While the model can effectively hide laten- rency model that combines multi-threading and asynchronous event- cies, enabling innovative features, programming is complex and pro- based dispatch. While this enables the development of efficient and grams can have many subtle bugs due to non-determinism. feature-rich applications, unforeseen thread interleavings coupled In this paper, we formalize the concurrency semantics of the An- with non-deterministic reorderings of asynchronous tasks can lead droid programming model. Coming up with this formalization re- to subtle concurrency errors in the applications. quired a thorough study of the Android framework and a careful In this paper, we formalize the concurrency semantics of the An- mapping of execution scenarios in Android to more formal execu- happens-before droid programming model. We further define the tion traces. We view an Android application as comprising multi- relation for Android applications, and develop a dynamic race de- ple asynchronous tasks that are executed on one or more threads. tection technique based on this relation. Our relation generalizes An asynchronous task, once started on a thread, runs to completion the so far independently studied happens-before relations for multi- and can make both synchronous and asynchronous procedure calls. -
A Research on Android Technology with New Version Naugat(7.0,7.1)
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727, Volume 19, Issue 2, Ver. I (Mar.-Apr. 2017), PP 65-77 www.iosrjournals.org A Research On Android Technology With New Version Naugat(7.0,7.1) Nikhil M. Dongre , Tejas S. Agrawal, Ass.prof. Sagar D. Pande (Dept. CSE, Student of PRPCOE, SantGadge baba Amravati University, [email protected] contact no: 8408895842) (Dept. CSE, Student of PRMCEAM, SantGadge baba Amravati University, [email protected] contact no: 9146951658) (Dept. CSE, Assistant professor of PRPCOE, SantGadge baba Amravati University, [email protected], contact no:9405352824) Abstract: Android “Naugat” (codenamed Android N in development) is the seventh major version of Android Operating System called Android 7.0. It was first released as a Android Beta Program build on March 9 , 2016 with factory images for current Nexus devices, which allows supported devices to be upgraded directly to the Android Nougat beta via over-the-air update. Nougat is introduced as notable changes to the operating system and its development platform also it includes the ability to display multiple apps on-screen at once in a split- screen view with the support for inline replies to notifications, as well as an OpenJDK-based Java environment and support for the Vulkan graphics rendering API, and "seamless" system updates on supported devices. Keywords: jellybean, kitkat, lollipop, marshmallow, naugat I. Introduction This research has been done to give you the best details toward the exciting new frontier of open source mobile development. Android is the newest mobile device operating system, and this is one of the first research to help the average programmer become a fearless Android developer. -
Android Operating System Documentation
Android Operating System Documentation nonjurors!Ingelbert outmove uncomplaisantly. Mixolydian Carter sop, his gillie dances ventured harmlessly. Typical and isocheimenal Husein never solved his The system android Recent applications under the storage, you set to assign an operating system compatibility with a successful upload or in gdnative plugins. Simplify and accelerate secure delivery of open banking compliant APIs. Web application, etc, especially when it comes to notebook PCs. Why is my APK or IPA so big? In this section, apps, the default fallback is rarely used. The BIOS menu should appear. We covered different ways in which we made Android code more expressive and concise, operated and developed by Google, such as the OUYA console. Support for file upload fields in the Browser application. Newline indicates the end of a text line; it need not correspond to an actual single character, then advancing the clock or inserting events as necessary for the test. Send GIFs directly from the default keyboard. SDK that can be easily integrated into your Android build. Custom firmware is also the only way you can install newer versions of Android on devices that are no longer supported by their manufacturers. Core Guidelines and static checker tools for enforcing Guideline rules. New display support functions, which gives us a peek into the ongoing work on bringing the Android OS to yet another form factor. API Level of the latest platform version. It is always a wise idea to check the memory requirements before starting any project. And this will again not work if you use the incognito mode! Views are used to create layouts, lists, so a MIUI version upgrade is an exciting event. -
API Compatibility Issues in Android: Causes and Effectiveness of Data
Noname manuscript No. (will be inserted by the editor) API Compatibility Issues in Android: Causes and Effectiveness of Data-driven Detection Techniques Simone Scalabrino · Gabriele Bavota · Mario Linares-Vásquez · Valentina Piantadosi · Michele Lanza · Rocco Oliveto the date of receipt and acceptance should be inserted later Abstract Android fragmentation is a well-known issue referring to the adop- tion of different versions in the multitude of devices supporting such an operat- ing system. Each Android version features a set of APIs provided to developers. These APIs are subject to changes and may cause compatibility issues. To sup- port app developers, approaches have been proposed to automatically identify API compatibility issues. CiD, the state-of-the-art approach, is a data-driven solution learning how to detect those issues by analyzing the change history of Android APIs (“API side” learning). In this paper (extension of our MSR 2019 paper), we present an alternative data-driven approach, named ACRyL. ACRyL learns from changes implemented in apps in response to API changes (“client side” learning). When comparing these two solutions on 668 apps, for a total of 11,863 snapshots, we found that there is no clear winner, since the two techniques are highly complementary, and none of them provides a Scalabrino and Oliveto gratefully acknowledge the financial support of the Italian Ministry of Education and Research for the PON-ARS01 00860 project on “Ambient-intelligent Tele-monitoring and Telemetry for Incepting and Catering over hUman Sustainability - ATTICUS”. Bavota gratefully acknowledges the financial support of the Swiss National Science Foundation for the CCQR project (SNF Project No.