How to Get Started with Strandhogg AppSealing

mobile apps

Strandhogg is a dangerous form of malware that impersonates legitimate apps to trick users into giving up sensitive information. AppSealing offers powerful mobile app security to protect against Strandhogg and other sophisticated hacking threats. Getting started with AppSealing doesn’t require advanced skills, but it does involve key steps to maximize protection. This guide covers the basics of implementing AppSealing to defend your apps against Strandhogg and secure your mobile applications.

Understanding the Strandhogg Threat

Before diving into AppSealing, it’s important to understand exactly how Strandhogg attacks work. Strandhogg malware uses an advanced technique called UI overlay. The malware overlays fake login screens or other windows on top of legitimate apps. Users think they are entering credentials into the real app, when in fact the data is going to malware.

Strandhogg specifically targets financial, social media, and other apps that process sensitive user information. The malware can steal login credentials, bank account details, personal messages, and other private data. Strandhogg also uses powerful rooting and system-level capabilities to deeply infiltrate devices.

This advanced UI overlay technique makes Strandhogg very hard for users to detect. Without security like AppSealing, Strandhogg can inflict significant financial and data losses before being discovered.

Code Obfuscation: The First Line of Defense

AppSealing’s code obfuscation should form the foundation of your Strandhogg protection. Obfuscation transforms and obscures the app code using advanced techniques like string encryption, control flow manipulation, and class renaming.

This makes the code extremely difficult for malware like Strandhogg to analyze. Strandhogg relies on analyzing apps to find targets for UI impersonation. Robust obfuscation blocks this analysis, hiding the inner workings of your app code and denying access to the key data Strandhogg wants to steal.

Enable maximum obfuscation on your app’s code, third-party libraries, resources, and entire APK file. This layered protection prevents Strandhogg from gaining any easy entry points into your app’s logic.

Locking Down App Access Points

Strandhogg needs access to your app’s processes and data to successfully mimic it with overlay windows. Lock down these access points by configuring AppSealing’s runtime application self-protection (RASP) features.

Enable root detection to stop modified Strandhogg APKs from running. Prevent debugging of your obfuscated code to block runtime data extraction. Utilize environmental checks, like emulator detection, so your app knows if it is running in a compromised environment.

AppSealing will automatically halt app execution when a threat like Strandhogg is detected at runtime. These RASP capabilities deny Strandhogg the access it needs to hijack your app’s UI and functions.

Anti-Tampering for Detection and Response

AppSealing’s anti-tampering is vital for detecting and responding to any Strandhogg attempts to disable or circumvent your protections. Tampering detection spots hacking efforts like attempting to modify the app code or remove license checks.

You can customize tamper response actions, including crashing the app, throwing exceptions, and corrupting app output. These will instantly block the attack and prevent Strandhogg from completing the app takeover.

Anti-tampering also detects if Strandhogg tries tampering bypasses like disabling obfuscation or RASP defenses. Any tampering automatically triggers your configured response to stop the attack.

Binding apps to trusted distribution channels

Strandhogg often relies on repackaging real apps with malware injected into them. These fake apps with Strandhogg embedded are then distributed through unauthorized channels.

AppSealing can lock down your app to only run if it is installed in the official app stores. This app binding technique checks the app signature at runtime. If the signature doesn’t match your approved stores, the app will refuse to execute.

Binding blocks Strandhogg repackaging by ensuring only authentic app versions from your trusted distribution partners will function. Your users can only install clean versions of your app, free from tampering.

Optimizing Performance Overhead

AppSealing’s security does come with some performance overhead. Too much overhead could impact the user experience and app ratings.

Start by profiling your app’s performance before applying any AppSealing protections. This quantifies the overhead added by AppSealing.

Next, use precision obfuscation to only target vulnerable code sections instead of everything. Excluding third-party SDKs like ads and analytics from obfuscation also optimizes performance.

Rigorously test AppSealing on both high-end and low-end devices to catch any lags. Adjust protections to find the right balance between security and performance for your app’s needs.

Leveraging AppSealing’s cloud analysis

AppSealing’s cloud-based app analysis gives you deeper insights into your protection status. Upload your secured app, and the cloud scan will assess its effectiveness against threats like Strandhog.

The analysis checks factors like how well obfuscation conceals your code logic and identifies any gaps in your anti-tampering coverage. You will receive a detailed report with security scorecards and improvement recommendations.

Use the cloud analysis feedback to fine-tune your AppSealing configuration for stronger Strandhogg protection. Check reports regularly to ensure your app remains secure against evolving hacking techniques.

Staying Up-to-Date on Emerging Threats

While Strandhogg is advanced, new hacking threats and malware continue to emerge. Sign up for AppSealing’s newsletters and blog updates to stay informed on the latest developments.

Closely monitor security research publications for new attack techniques and threats. Evaluate any newly uncovered risks against your AppSealing protections to ensure you remain protected.

Also check AppSealing’s updates and changelogs for new features, fixes, and configuration options. Refresh your implementation to take advantage of enhancements that can harden protections against emerging hacking methods.

Getting Help from AppSealing’s Security Experts

Even after following these best practices, you may run into unique AppSealing issues protecting your app from threats like Strandhogg. AppSealing’s customer support team has extensive experience securing millions of mobile apps worldwide.

Reach out by submitting detailed support tickets. Provide as much background on your app and the problems you’re facing as possible. AppSealing security researchers and engineers can provide personalized advice tailored to securing your mobile app against Strandhogg and other advanced threats jeopardizing your business.


Strandhogg and sophisticated mobile malware continue to put user data and app integrity at risk. Getting started with AppSealing by following core best practices gives your app multi-layered protection against these threats. Focus on obfuscation, locking down access, anti-tampering, trusted distribution, performance optimizations, cloud analysis, and staying current on emerging threats. With smart Appsealing implementation, you can empower your mobile app with robust defenses to stop Strandhogg and other advanced hacking in its tracks.



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