Prevent Strandhogg Task Hijacking
Learn to Prevent Strandhogg Task Hijacking in Android apps, in mobile CI/CD with a Data-Driven DevSecOps™ build system.
What is Strandhogg Task Hijacking?
The Strandhogg Task Hijacking attack is based on the way an application handles its activities. This type of attack can take place if the app is designed to allow exported activities – namely, activities that can be accessed by external components or apps – start (launch) onto the app as tasks.
A ‘task’ is a collection of activities the user interacts with when trying to do something within the app. These activities are arranged in a stack called the back stack in the order in which each activity is opened. For example: An online stock trading app may display multiple shares. Clicking on a share opens another screen, which allows several activities. Clicking ‘Deposit’ opens a deposit window and so on.
By using StrandHogg, malicious actors can gain access to personal, confidential information such as login credentials, phone conversations, SMS messages and photos.
How does Appdome Prevent Strandhogg Task Hijacking?
To prevent a scenario in which malicious apps misuse these exported activities for performing various harmful actions, Appdome prevents the attack from happening by adjusting the task usage of the app so its windows cannot be exploited by an attacking app.
These features lock the activities within the app and will Prevent Strandhogg Task Hijacking attempt when the app is in the foreground.
Prevent Strandhogg Task Hijacking on Android apps using Appdome
On Appdome, follow these 3 simple steps to create self-defending Android Apps that Prevent Strandhogg Task Hijacking without an SDK or gateway:
Upload the Mobile App to Appdome.
Upload an app to Appdome’s Mobile App Security Build System
Upload Method: Appdome Console or DEV-API
Android Formats: .apk or .aab
Prevent Strandhogg Task Hijacking Compatible With: Java, JS, C++, C#, Kotlin, Flutter, React Native, Unity, Xamarin, Cordova and more
Build the feature: Prevent Strandhogg Task Hijacking.
Congratulations! The Prevent Strandhogg Task Hijacking protection is now added to the mobile app
Building Prevent Strandhogg Task Hijacking by using Appdome’s DEV-API:
Create and name the Fusion Set (security template) that will contain the Prevent Strandhogg Task Hijacking feature as shown below:
Follow the steps in Sections 2.2.1-2.2.2 of this article, Building the Prevent Strandhogg Task Hijacking feature via Appdome Console, to add the Prevent Strandhogg Task Hijacking feature to this Fusion Set.
Open the Fusion Set Detail Summary by clicking the “...” symbol on the far-right corner of the Fusion Set, as shown in Figure 1 above, and get the Fusion Set ID from the Fusion Set Detail Summary (as shown below):
Figure 2: Fusion Set Detail Summary
Note: Annotating the Fusion Set to identify the protection(s) selected is optional only (not mandatory).
Follow the instructions below to use the Fusion Set ID inside any standard mobile DevOps or CI/CD toolkit like Bitrise, App Center, Jenkins, Travis, Team City, Cirlce CI or other system:
Figure 1: Fusion Set that will contain the Prevent Strandhogg Task Hijacking feature
Note: Naming the Fusion Set to correspond to the protection(s) selected is for illustration purposes only (not required).
Building the Prevent Strandhogg Task Hijacking feature via Appdome Console
To build the Prevent Strandhogg Task Hijacking protection by using Appdome Console, follow the instructions below.
Where: Inside the Appdome Console, go to Build > Anti Fraud Tab > Mobile Malware Prevention section
How: Toggle (turn ON) Prevent Strandhogg Task Hijacking, as shown below.
If needed, Customize the Threat Notification to be displayed to the mobile end-user in a standard OS dialog notification when Appdome Prevents Strandhogg Task Hijacking.
Figure 3: Prevent Strandhogg Task Hijacking option
Note: The App Compromise Notification contains an easy to follow default remediation path for the mobile app end user. You can customize this message as required to achieve brand specific support, workflow or other messaging.
When you select the Prevent Strandhogg Task Hijacking you'll notice that your Fusion Set you created in step 2.1.1 now bears the icon of the protection category that contains Prevent Strandhogg Task Hijacking
Figure 4: Fusion Set that displays the newly added Prevent Strandhogg Task Hijacking protection
- Optional Configuration with Prevent Strandhogg Task Hijacking:
- Trust Specified Activities Only
Specify the class name of the activity to exclude from Overlay detection
Click Build My App at the bottom of the Build Workflow (shown in Figure 3).
Certify the Prevent Strandhogg Task Hijacking feature in Android Apps.
After building Prevent Strandhogg Task Hijacking, Appdome generates a Certified Secure™ certificate to guarantee that the Prevent Strandhogg Task Hijacking protection has been added and is protecting the app. To verify that the Prevent Strandhogg Task Hijacking protection has been added to the mobile app, locate the protection in the Certified Secure™ certificate as shown below:
Figure 5: Certified Secure™ certificate
Each Certified Secure™ certificate provides DevOps and DevSecOps organizations the entire workflow summary, audit trail of each build, and proof of protection that Prevent Strandhogg Task Hijacking has been added to each Android app. Certified Secure provides instant and in-line DevSecOps compliance certification that Prevent Strandhogg Task Hijacking and other mobile app security features are in each build of the mobile app
Prerequisites to Using Prevent Strandhogg Task Hijacking:
To use Appdome’s mobile app security build system to Prevent Strandhogg Task Hijacking , you’ll need:
- Appdome account (create a free Appdome account here)
- A license for Prevent Strandhogg Task Hijacking
- Mobile App (.apk or .aab For Android)
- Signing Credentials (see Signing Secure Android apps and Signing Secure iOS apps)
Using Appdome, there are no development or coding prerequisites to build secured Android Apps by using Prevent Strandhogg Task Hijacking. There is no SDK and no library to code or implement in the app and no gateway to deploy in your network. All protections are built into each app and the resulting app is self-defending and self-protecting.
Releasing and Publishing Mobile Apps with Prevent Strandhogg Task Hijacking
After successfully securing your app by using Appdome, there are several available options to complete your project, depending on your app lifecycle or workflow. These include:
- Customizing, Configuring & Branding Secure Mobile Apps
- Deploying/Publishing Secure mobile apps to Public or Private app stores
- Releasing Secured Android & iOS Apps built on Appdome.
All apps protected by Appdome are fully compatible with any public app store, including Apple App Store, Google Play, Huawei App Gallery and more.
- How to Protect Android & iOS Apps from Keylogging Malware
- How to Block Memory Editing tools for Android & iOS apps
- How to Detect MiTM Proxies, Prevent MiTM Attacks in Android & iOS Apps
If you have any questions, please send them our way at support.appdome.com or via the chat window on the Appdome platform.
Thanks for visiting Appdome! Our mission is to secure every app on the planet by making mobile app security easy. We hope we’re living up to the mission with your project.