The virus, also known as Lockdroid actually uses a very familiar, but in the same time not very widespread – dropper.
How the infection happens is that the virus can be inserted via an app installed from a third-party location with the authorization of the user. After this has happened the app will establish connection to a third-party host where automatically the lockscreen malware is dropped and executed, researchers(https://www.symantec.com/connect/blogs/android-ransomware-repurposes-old-dropper-techniques?es_c=50044&es_t=1486483247) report.
What is interesting about this case is that the app itself checks the root status of the device and if it is not rooted, it displays a screen that has deceitful messages for the user to confirm. This screen gives the application permissions to act.
Once it has been administratively activated, the app unmounts and mounts the /system partition of the Android device and then copies the malicious APK (package) file for the ransomware into that very partition. Then, the app changes the APK file which is the Lockdroid malware’s permissions to auto execute. After this horrendous activity is complete, the app restarts the device in a force mode and then locks it’s screen.
What is interesting is that the app displays a 2D type of barcode on the device in the lockscreen. In addition to it, it has instructions on how to scan this very barcode to perform a payment easily and unlock the android device. Malware researchers strongly advise users not to scan or pay anything and to try alternative tools to reset the phone after taking out your SIM card.
We have created the following instructions, in case you have become a victim of Android malware. They will help you.
- Guide 1: How to Remove Lockdroid Ransomware from Windows.
- Guide 2: Get rid of Lockdroid Ransomware on Mac OS X.
- Guide 3: Remove Lockdroid Ransomware in Google Chrome.
- Guide 4: Erase Lockdroid Ransomware from Mozilla Firefox.
- Guide 5: Uninstall Lockdroid Ransomware from Microsoft Edge.
- Guide 6: Remove Lockdroid Ransomware from Safari.
- Guide 7: Eliminate Lockdroid Ransomware from Internet Explorer.
- Guide 8: Disable Lockdroid Ransomware Push Notifications in Your Browsers.
How to Remove Lockdroid Ransomware from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Lockdroid Ransomware
Step 2: Uninstall Lockdroid Ransomware and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
Step 3: Clean any registries, created by Lockdroid Ransomware on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Lockdroid Ransomware there. This can happen by following the steps underneath:
Get rid of Lockdroid Ransomware from Mac OS X.
Step 1: Uninstall Lockdroid Ransomware and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Lockdroid Ransomware via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Lockdroid Ransomware files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Lockdroid Ransomware, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Remove Lockdroid Ransomware from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase Lockdroid Ransomware from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall Lockdroid Ransomware from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove Lockdroid Ransomware from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Lockdroid Ransomware will be removed.
Eliminate Lockdroid Ransomware from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications caused by Lockdroid Ransomware from Your Browsers.
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".