How to Prevent Strandhogg Task Hijacking

Last updated February 4, 2024 by Appdome

This Knowledge Base article describes how to use Appdome’s AI/ML in your CI/CD pipeline to continuously deliver plugins that Prevent Strandhogg Task Hijacking in Android apps.

What is Strandhogg Task Hijacking?

Strandhogg Task Hijacking is an attack that targets the way an application manages its activities. This attack is possible in apps configured to allow exported activities, which are activities that can be accessed by external components or apps enabling them to launch onto the app as tasks.

A ‘task’ refers to a collection of activities that a user interacts with when trying to complete an action within the app. These activities are arranged in a stack known as the back stack in the order in which each activity is opened.

Consider an online stock trading app displaying multiple shares. Clicking on a share opens another screen, which allows several activities. For instance, clicking ‘Deposit’ opens a deposit window, and so forth. Malicious actors use StrandHogg to gain access to personal and 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 to perform various harmful actions, Appdome mitigates the attack by adjusting the app’s task usage so that an attacking app cannot exploit its windows. These enhancements lock the app’s activities, effectively countering both Strandhogg 1.0 and 2.0 attack attempts when the app is in the foreground.

Strandhogg 2.0 exploits the Android multi-tasking system to access recently opened apps. To counteract this, Appdome has developed a defense that explicitly removes the app from the multi-task background app menu, thereby protecting the app from being exploited.

IMPORTANT: To successfully protect against Strandhogg 2.0 in devices running up to and including Android 14 it is necessary to omit the app from the recent apps tab. This step is crucial due to the specific way Strandhogg 2.0 exploits the functionalities of the recent apps tab.

We recognize that removing the app from the recent apps menu, particularly when the user is on the login screen, may cause some apps to exhibit unexpected behavior as a result of the enhanced security. In such cases, developers can add the problematic activities to the ‘trusted activities’ list. Appdome will not enforce stringent security measures on activities in this list, and the end user should not experience any interference with the app’s usability.

Prerequisites for Using Appdome's Prevent Strandhogg Task Hijacking Plugins:

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)

How to Implement Prevent Strandhogg Task Hijacking in 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:

Designate the Mobile App to be protected.
1. Upload an app via the Appdome Mobile Defense platform GUI or via Appdome’s DEV-API or CI/CD Plugins.
2. Android Formats: .apk or .aab
3. Prevent Strandhogg Task Hijacking is compatible with: Java, JS, C++, C#, Kotlin, Flutter, React Native, Unity, Xamarin, Cordova and other Android apps.
Select the defense: Prevent Strandhogg Task Hijacking.

Create and name the Fusion Set (security template) that will contain the Prevent Strandhogg Task Hijacking feature as shown below:

Figure 1: Fusion Set that will contain the Prevent Strandhogg Task Hijacking feature

Follow the steps in Sections 2.2-2.2.2 of this article to add the Prevent Strandhogg Task Hijacking feature to your Fusion Set via the Appdome Console.

When you select the Prevent Strandhogg Task Hijacking you'll notice that the Fusion Set you created in step 2.1 now bears the icon of the protection category that contains Prevent Strandhogg Task Hijacking.

Figure 2: Fusion Set that displays the newly added Prevent Strandhogg Task Hijacking protection
Note: Annotating the Fusion Set to identify the protection(s) selected is optional only (not mandatory).

Open the Fusion Set Detail Summary by clicking the “...” symbol on the far-right corner of the Fusion Set. Copy the Fusion Set ID from the Fusion Set Detail Summary (as shown below):

Figure 3: Fusion Set Detail Summary

Follow the instructions below to use the Fusion Set ID inside any standard mobile DevOps or CI/CD toolkit like Bitrise, Jenkins, Travis, Team City, Circle CI or other system:

Refer to the Appdome API Reference Guide for API building instructions.

Look for sample APIs in Appdome’s GitHub Repository.

Add the Prevent Strandhogg Task Hijacking feature to your security template.

Navigate to Build > Anti Fraud tab > Mobile Malware Prevention section in the Appdome Console.
Like all other options in ONEShield™, Prevent Strandhogg Task Hijacking is turned on by default, as shown below:
Figure 4: Selecting Prevent Strandhogg Task Hijacking
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.

Toggle On > Prevent Strandhogg Task Hijacking.

Figure 4: Selecting Prevent Strandhogg Task Hijacking
Note: The Appdome Platform displays the Mobile Operation Systems supported by each defense in real-time. For more details, see our OS Support Policy KB.

Configure the User Experience Options for Prevent Strandhogg Task Hijacking:
With Threat-Events™ OFF, Appdome provides several user experience options for mobile brands and developers.

App Compromise Notification: Customize the pop-up or toast Appdome uses to notify the user when a threat is present while using the protected mobile app.

Short message Option. This is available for mobile devices that allow a banner notification for security events.

Localized Message Option. Allows Appdome users to support global languages in security notifications.

Figure 5: Default User Experience Options for Appdome’s Strandhogg Task Hijacking

Prevent Strandhogg Task Hijacking Threat Code™. Appdome uses AI/ML to generate a unique code each time Prevent Strandhogg Task Hijacking is triggered by an active threat on the mobile device. Use the code in Appdome Threat Resolution Center™ to help end users identify, find and resolve active threats on the personal mobile devices.

Optional Configuration with Prevent Strandhogg Task Hijacking:
Trust Specified Activities Only
Specify the class name of the activity to exclude from Overlay detection

Initiate the build command either by clicking Build My App at the bottom of the Build Workflow (shown in Figure 4) or via your CI/CD as described in Section 2.1.4.

Congratulations! The Prevent Strandhogg Task Hijacking protection is now added to the mobile app

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 6: 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.

Using Threat-Events™ for Strandhogg Task Hijacking Intelligence and Control in Android Apps

Appdome Threat-Events™ provides consumable in-app mobile app attack intelligence and defense control when Strandhogg Task Hijacking is detected. To consume and use Threat-Events™ for Strandhogg Task Hijacking in Android Apps, use registerReceiver in the Application OnCreate, and the code samples for Threat-Events™ for Strandhogg Task Hijacking shown below.

The specifications and options for Threat-Events™ for Strandhogg Task Hijacking are:

Threat-Event™ Elements Prevent Strandhogg Task Hijacking Method Detail

Appdome Feature Name Prevent Strandhogg Task Hijacking

Threat-Event Mode

OFF, IN-APP DEFENSE Appdome detects, defends and notifies user (standard OS dialog) using customizable messaging.

ON, IN-APP DETECTION Appdome detects the attack or threat and passes the event in a standard format to the app for processing (app chooses how and when to enforce).

ON, IN-APP DEFENSE Uses Appdome Enforce mode for any attack or threat and passes the event in a standard format to the app for processing (gather intel on attacks and threats without losing any protection).

Certified Secure™ Threat Event Check x

Visible in ThreatScope™ x

Developer Parameters for Preventing Strandhogg Task Hijacking Threat-Event™

Threat-Event NAME

Threat-Event DATA reasonData

Threat-Event CODE reasonCode

Threat-Event REF

Threat-Event SCORE
currentThreatEventScore Current Threat-Event score

threatEventsScore Total Threat-events score

Threat-Event Context Keys

message Message displayed for the user on event

failSafeEnforce Timed enforcement against the identified threat

externalID The external ID of the event which can be listened via Threat Events

osVersion OS version of the current device

deviceModel Current device model

deviceManufacturer The manufacturer of the current device

fusedAppToken The task ID of the Appdome fusion of the currently running app

kernelInfo Info about the kernel: system name, node name, release, version and machine.

carrierPlmn PLMN of the device. Only available for Android devices.

deviceID Current device ID

reasonCode Reason code of the occurred event

buildDate Appdome fusion date of the current application

devicePlatform OS name of the current device

carrierName Carrier name of the current device. Only available for Android.

updatedOSVersion Is the OS version up to date

deviceBrand Brand of the device

deviceBoard Board of the device

buildUser Build user

buildHost Build host

sdkVersion Sdk version

timeZone Time zone

deviceFaceDown Is the device face down

locationLong Location longitude conditioned by location permission

locationLat Location latitude conditioned by location permission

locationState Location state conditioned by location permission

wifiSsid Wifi SSID

wifiSsidPermissionStatus Wifi SSID permission status

threatCode The last six characters of the threat code specify the OS, allowing the Threat Resolution Center to address the attack on the affected device.

With Threat-Events™ enabled (turned ON), Android developers can get detailed attack intelligence and granular defense control in Android applications and create amazing user experiences for all mobile end users when Strandhogg Task Hijacking is detected.

The following is a code sample for native Android apps, which uses all values in the specification above for Prevent Strandhogg Task Hijacking:

Important! Replace all placeholder instances of <Context Key> with the specific name of your threat event context key across all language examples. This is crucial to ensure your code functions correctly with the intended event data. For example, The <Context Key> could be the message, externalID, OS Version, reason code, etc.

IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(""); BroadcastReceiver threatEventReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String message = intent.getStringExtra("message"); // Message shown to the user String reasonData = intent.getStringExtra("reasonData"); // Threat detection cause String reasonCode = intent.getStringExtra("reasonCode"); // Event reason code // Current threat event score String currentThreatEventScore = intent.getStringExtra("currentThreatEventScore"); // Total threat events score String threatEventsScore = intent.getStringExtra("threatEventsScore"); // Replace '' with your specific event context key // String variable = intent.getStringExtra(""); // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } }; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED); } else { registerReceiver(threatEventReceiver, intentFilter); }

xxxxxxxxxx
1
20
1
15
1
15
1
15

1
IntentFilter intentFilter = new IntentFilter();
2
intentFilter.addAction("");
3
BroadcastReceiver threatEventReceiver = new BroadcastReceiver() {
4
@Override
5
public void onReceive(Context context, Intent intent) {
6
String message = intent.getStringExtra("message"); // Message shown to the user
7
String reasonData = intent.getStringExtra("reasonData"); // Threat detection cause
8
String reasonCode = intent.getStringExtra("reasonCode"); // Event reason code
9

10
// Current threat event score
11
String currentThreatEventScore = intent.getStringExtra("currentThreatEventScore");
12

13
// Total threat events score
14
String threatEventsScore = intent.getStringExtra("threatEventsScore");
15

16
// Replace '<Context Key>' with your specific event context key
17
// String variable = intent.getStringExtra("<Context Key>");
18

19
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
20
}
21
};
22

23
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
24
registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED);
25
} else {
26
registerReceiver(threatEventReceiver, intentFilter);
27
}

val intentFilter = IntentFilter() intentFilter.addAction("") val threatEventReceiver = object : BroadcastReceiver() { override fun onReceive(context: Context?, intent: Intent?) { var message = intent?.getStringExtra("message") // Message shown to the user var reasonData = intent?.getStringExtra("reasonData") // Threat detection cause var reasonCode = intent?.getStringExtra("reasonCode") // Event reason code // Current threat event score var currentThreatEventScore = intent?.getStringExtra("currentThreatEventScore") // Total threat events score var threatEventsScore = intent?.getStringExtra("threatEventsScore") // Replace '' with your specific event context key // var variable = intent?.getStringExtra("") // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } } if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED) } else { registerReceiver(threatEventReceiver, intentFilter) }

xxxxxxxxxx
1
20
1
15
1
15
1
15

1
val intentFilter = IntentFilter()
2
intentFilter.addAction("")
3
val threatEventReceiver = object : BroadcastReceiver() {
4
override fun onReceive(context: Context?, intent: Intent?) {
5
var message = intent?.getStringExtra("message") // Message shown to the user
6
var reasonData = intent?.getStringExtra("reasonData") // Threat detection cause
7
var reasonCode = intent?.getStringExtra("reasonCode") // Event reason code
8

9
// Current threat event score
10
var currentThreatEventScore = intent?.getStringExtra("currentThreatEventScore")
11

12
// Total threat events score
13
var threatEventsScore = intent?.getStringExtra("threatEventsScore")
14

15
// Replace '<Context Key>' with your specific event context key
16
// var variable = intent?.getStringExtra("<Context Key>")
17

18
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
19
}
20
}
21

22
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
23
registerReceiver(threatEventReceiver, intentFilter, Context.RECEIVER_NOT_EXPORTED)
24
} else {
25
registerReceiver(threatEventReceiver, intentFilter)
26
}

const { ADDevEvents } = NativeModules; const aDDevEvents = new NativeEventEmitter(ADDevEvents); function registerToDevEvent(action, callback) { NativeModules.ADDevEvents.registerForDevEvent(action); aDDevEvents.addListener(action, callback); } export function registerToAllEvents() { registerToDevEvent( "", (userinfo) => Alert.alert(JSON.stringify(userinfo)) var message = userinfo["message"] // Message shown to the user var reasonData = userinfo["reasonData"] // Threat detection cause var reasonCode = userinfo["reasonCode"] // Event reason code // Current threat event score var currentThreatEventScore = userinfo["currentThreatEventScore"] // Total threat events score var threatEventsScore = userinfo["threatEventsScore"] // Replace '' with your specific event context key // var variable = userinfo[""] // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) ); }

xxxxxxxxxx
1
20
1
15
1
15
1
15
2
29

1
const { ADDevEvents } = NativeModules;
2
const aDDevEvents = new NativeEventEmitter(ADDevEvents);
3

4
function registerToDevEvent(action, callback) {
5
NativeModules.ADDevEvents.registerForDevEvent(action);
6
aDDevEvents.addListener(action, callback);
7
}
8

9
export function registerToAllEvents() {
10
registerToDevEvent(
11
"",
12
(userinfo) => Alert.alert(JSON.stringify(userinfo))
13

14
var message = userinfo["message"] // Message shown to the user
15
var reasonData = userinfo["reasonData"] // Threat detection cause
16
var reasonCode = userinfo["reasonCode"] // Event reason code
17

18
// Current threat event score
19
var currentThreatEventScore = userinfo["currentThreatEventScore"]
20

21
// Total threat events score
22
var threatEventsScore = userinfo["threatEventsScore"]
23

24
// Replace '<Context Key>' with your specific event context key
25
// var variable = userinfo["<Context Key>"]
26

27
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
28
);
29
}

RegisterReceiver(new ThreatEventReceiver(), new IntentFilter("")); class ThreatEventReceiver : BroadcastReceiver { public override void OnReceive(Context context, Intent intent) { String message = intent.GetStringExtra("message"); // Message shown to the user String reasonData = intent.GetStringExtra("reasonData"); // Threat detection cause String reasonCode = intent.GetStringExtra("reasonCode"); // Event reason code // Current threat event score String currentThreatEventScore = intent.GetStringExtra("currentThreatEventScore"); // Total threat events score String threatEventsScore = intent.GetStringExtra("threatEventsScore"); // Replace '' with your specific event context key // String variable = intent.GetStringExtra(""); // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } }

x
27

1
RegisterReceiver(new ThreatEventReceiver(), new IntentFilter(""));
2

3
class ThreatEventReceiver : BroadcastReceiver
4
{
5
public override void OnReceive(Context context, Intent intent)
6
{
7
// Message shown to the user
8
String message = intent.GetStringExtra("message");
9

10
// Threat detection cause
11
String reasonData = intent.GetStringExtra("reasonData");
12

13
// Event reason code
14
String reasonCode = intent.GetStringExtra("reasonCode");
15

16
// Current threat event score
17
String currentThreatEventScore = intent.GetStringExtra("currentThreatEventScore");
18

19
// Total threat events score
20
String threatEventsScore = intent.GetStringExtra("threatEventsScore");
21

22
// Replace '<Context Key>' with your specific event context key
23
// String variable = intent.GetStringExtra("<Context Key>");
24

25
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
26
}
27
}

NSNotificationCenter.DefaultCenter.AddObserver( (NSString)"", // Threat-Event Identifier delegate (NSNotification notification) { // Message shown to the user var message = notification.UserInfo.ObjectForKey("message"); // Threat detection cause var reasonData = notification.UserInfo.ObjectForKey("reasonData"); // Event reason code var reasonCode = notification.UserInfo.ObjectForKey("reasonCode"); // Current threat event score var currentThreatEventScore = notification.UserInfo.ObjectForKey("currentThreatEventScore"); // Total threat events score var threatEventsScore = notification.UserInfo.ObjectForKey("threatEventsScore"); // Replace '' with your specific event context key // var variable = notification.UserInfo.ObjectForKey(""); // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) } );

x

1
NSNotificationCenter.DefaultCenter.AddObserver(
2
(NSString)"", // Threat-Event Identifier
3
delegate (NSNotification notification)
4
{
5
// Message shown to the user
6
var message = notification.UserInfo.ObjectForKey("message");
7

8
// Threat detection cause
9
var reasonData = notification.UserInfo.ObjectForKey("reasonData");
10

11
// Event reason code
12
var reasonCode = notification.UserInfo.ObjectForKey("reasonCode");
13

14
// Current threat event score
15
var currentThreatEventScore = notification.UserInfo.ObjectForKey("currentThreatEventScore");
16

17
// Total threat events score
18
var threatEventsScore = notification.UserInfo.ObjectForKey("threatEventsScore");
19

20
// Replace '<Context Key>' with your specific event context key
21
// var variable = notification.UserInfo.ObjectForKey("<Context Keys>");
22

23
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
24
}
25
);

window.broadcaster.addEventListener("", function(userInfo) { var message = userInfo.message // Message shown to the user var reasonData = userInfo.reasonData // Threat detection cause var reasonCode = userInfo.reasonCode // Event reason code // Current threat event score var currentThreatEventScore = userInfo.currentThreatEventScore // Total threat events score var threatEventsScore = userInfo.threatEventsScore // Replace '' with your specific event context key // var variable = userInfo. // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) });

xxxxxxxxxx
1
20
1
15
1
15
1
15
2
29

1
window.broadcaster.addEventListener("", function(userInfo) {
2
var message = userInfo.message // Message shown to the user
3
var reasonData = userInfo.reasonData // Threat detection cause
4
var reasonCode = userInfo.reasonCode // Event reason code
5

6
// Current threat event score
7
var currentThreatEventScore = userInfo.currentThreatEventScore
8

9
// Total threat events score
10
var threatEventsScore = userInfo.threatEventsScore
11

12
// Replace '<Context Key>' with your specific event context key
13
// var variable = userInfo.<Context Keys>
14

15
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
16
});

import 'dart:async'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; class PlatformChannel extends StatefulWidget { const PlatformChannel({super.key}); @override State createState() => _PlatformChannelState(); } class _PlatformChannelState extends State { // Replace with your EventChannel name static const String _eventChannelName = ""; static const EventChannel _eventChannel = EventChannel(_eventChannelName); @override void initState() { super.initState(); _eventChannel.receiveBroadcastStream().listen(_onEvent, onError: _onError); } void _onEvent(Object? event) { setState(() { // Adapt this section based on your specific event data structure var eventData = event as Map; // Example: Accessing 'externalID' field from the event var externalID = eventData['externalID']; // Customize the rest of the fields based on your event structure String message = eventData['message']; // Message shown to the user String reasonData = eventData['reasonData']; // Threat detection cause String reasonCode = eventData['reasonCode']; // Event reason code // Current threat event score String currentThreatEventScore = eventData['currentThreatEventScore']; // Total threat events score String threatEventsScore = eventData['threatEventsScore']; // Replace '' with your specific event context key // String variable = eventData['']; }); } // Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...) }

x

1
import 'dart:async';
2
import 'package:flutter/material.dart';
3
import 'package:flutter/services.dart';
4

5
class PlatformChannel extends StatefulWidget {
6
const PlatformChannel({super.key});
7

8
@override
9
State<PlatformChannel> createState() => _PlatformChannelState();
10
}
11

12
class _PlatformChannelState extends State<PlatformChannel> {
13
// Replace with your EventChannel name
14
static const String _eventChannelName = "";
15
static const EventChannel _eventChannel = EventChannel(_eventChannelName);
16

17
@override
18
void initState() {
19
super.initState();
20
_eventChannel.receiveBroadcastStream().listen(_onEvent, onError: _onError);
21
}
22

23
void _onEvent(Object? event) {
24
setState(() {
25
// Adapt this section based on your specific event data structure
26
var eventData = event as Map;
27

28
// Example: Accessing 'externalID' field from the event
29
var externalID = eventData['externalID'];
30

31
// Customize the rest of the fields based on your event structure
32
String message = eventData['message']; // Message shown to the user
33
String reasonData = eventData['reasonData']; // Threat detection cause
34
String reasonCode = eventData['reasonCode']; // Event reason code
35

36
// Current threat event score
37
String currentThreatEventScore = eventData['currentThreatEventScore'];
38

39
// Total threat events score
40
String threatEventsScore = eventData['threatEventsScore'];
41

42
// Replace '<Context Key>' with your specific event context key
43
// String variable = eventData['<Context Keys>'];
44
});
45
}
46

47
// Your logic goes here (Send data to Splunk/Dynatrace/Show Popup...)
48
}

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.

Related Articles:

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

How Do I Learn More?

If you have any questions, please send them our way at support.appdome.com or via the chat window on the Appdome platform.

Thank you!

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.

How to Prevent Strandhogg Task Hijacking

What is Strandhogg Task Hijacking?

How Does Appdome Prevent Strandhogg Task Hijacking?

Prerequisites for Using Appdome's Prevent Strandhogg Task Hijacking Plugins:

How to Implement Prevent Strandhogg Task Hijacking in Android Apps Using Appdome

Designate the Mobile App to be protected.

Upload an app via the Appdome Mobile Defense platform GUI or via Appdome’s DEV-API or CI/CD Plugins.

Select the defense: Prevent Strandhogg Task Hijacking.

Add the Prevent Strandhogg Task Hijacking feature to your security template.

Certify the Prevent Strandhogg Task Hijacking feature in Android Apps

Using Threat-Events™ for Strandhogg Task Hijacking Intelligence and Control in Android Apps

Related Articles:

How Do I Learn More?

Thank you!

Stop AI-Based Attacks While Automating PCI DSS 4.0 Compliance

Supercharge the Experience in Mobile App Defense

Better User Experience in Mobile Defense

Shifting Dynamics in Mobile Fraud Prevention: A Call for Developer Responsibility

Threat-Event™ Elements	Prevent Strandhogg Task Hijacking Method Detail
Appdome Feature Name	Prevent Strandhogg Task Hijacking
Threat-Event Mode
OFF, IN-APP DEFENSE	Appdome detects, defends and notifies user (standard OS dialog) using customizable messaging.
ON, IN-APP DETECTION	Appdome detects the attack or threat and passes the event in a standard format to the app for processing (app chooses how and when to enforce).
ON, IN-APP DEFENSE	Uses Appdome Enforce mode for any attack or threat and passes the event in a standard format to the app for processing (gather intel on attacks and threats without losing any protection).
Certified Secure™ Threat Event Check	x
Visible in ThreatScope™	x
Developer Parameters for Preventing Strandhogg Task Hijacking Threat-Event™
Threat-Event NAME
Threat-Event DATA	reasonData
Threat-Event CODE	reasonCode
Threat-Event REF
Threat-Event SCORE
currentThreatEventScore	Current Threat-Event score
threatEventsScore	Total Threat-events score

Threat-Event Context Keys
message	Message displayed for the user on event
failSafeEnforce	Timed enforcement against the identified threat
externalID	The external ID of the event which can be listened via Threat Events
osVersion	OS version of the current device
deviceModel	Current device model
deviceManufacturer	The manufacturer of the current device
fusedAppToken	The task ID of the Appdome fusion of the currently running app
kernelInfo	Info about the kernel: system name, node name, release, version and machine.
carrierPlmn	PLMN of the device. Only available for Android devices.
deviceID	Current device ID
reasonCode	Reason code of the occurred event
buildDate	Appdome fusion date of the current application
devicePlatform	OS name of the current device
carrierName	Carrier name of the current device. Only available for Android.
updatedOSVersion	Is the OS version up to date
deviceBrand	Brand of the device
deviceBoard	Board of the device
buildUser	Build user
buildHost	Build host
sdkVersion	Sdk version
timeZone	Time zone
deviceFaceDown	Is the device face down
locationLong	Location longitude conditioned by location permission
locationLat	Location latitude conditioned by location permission
locationState	Location state conditioned by location permission
wifiSsid	Wifi SSID
wifiSsidPermissionStatus	Wifi SSID permission status
threatCode	The last six characters of the threat code specify the OS, allowing the Threat Resolution Center to address the attack on the affected device.