What is Grandoreiro? How to remove Grandoreiro Trojan from your PC or Mac?
The Grandoreiro Trojan is a malware threat categorized as a banking Trojan. Usually viruses of this category are delivered to the target users via complex attack campaigns. This particular threat is known for being spread using phishing strategies. The attacks are set against users worldwide. After the infection has been made the Grandoreiro Trojan can download other threats, launch multiple dangerous modules and steal files. The virus will hijack online banking and web service sessions.
Threat Summary
| Name | Grandoreiro Trojan |
| Type | Malware, Trojan |
| Short Description | A dangerous malware which can launch different components and start a Trojan module. |
| Symptoms | The victims may notice performance issues and can get infected with other malware. |
| Distribution Method | Common distribution tactics and direct web attacks. |
| Detection Tool |
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User Experience | Join Our Forum to Discuss Grandoreiro Trojan. |
Grandoreiro Trojan — Overview
The Grandoreiro Trojan is an advanced banking Trojan which leverages counterfeit plugins made for the Google Chrome web browser. This is a popular strategy which uses the so-called payload carrier method in order to send out the samples to the intended victims. At the moment the campaign is set against end users in Spain. Viruses like this one are spread as browser hijackers which are designed to spread as impersonating legitimate plugins made for commonly used web browsers. They are often uploaded to the relevant repositories, download portals or sent via SPAM email messages. In some cases the hackers responsible for the attacks may also link the files in social networks as well.
The Grandoreiro Trojan has been detected in an attack campaign which started in February 2020 using video messages sent via emails. It uses different elements and contents that are related to the Coronavirus pandemic to entice the recipients into clicking on an URL which will redirect to a website containing an infected .MSI file. This is a Microsoft Windows software installer which when run will lead to the Trojan infection.
Like other viruses of this category the Trojan will establish a secure connection to a hacker-controlled server allowing the criminals to take over control of the infected computers and steal data. The extension is named Google Plugin Version 1.5.0. is added to the browsers of the victims. The virus-infected extension will be programmed to read the data stored in the web browsers: history, notifications, bookmarks, cookies, preferences and any stored passwords. The mechanism of attack is to hijack browser cookies related to online services and banking in order hijack login sessions. The default behavior of the Grandoreiro Trojan is to wait until the users browse to one of the target services. When this is done the remote control functionality will be activated and the criminals will be able to view the user interactions and take over control of the sessions. At any time the Grandoreiro Trojan can shift its behavior in order to deploy other malware or institute other malicious actions.
How to Remove Grandoreiro Trojan
In order to fully remove Grandoreiro from your computer system, we recommend that you follow the removal instructions underneath this article. If the first two manual removal steps do not seem to work and you still see Grandoreiro or programs, related to it, we suggest what most security experts advise – to download and run a scan of your computer with a reputable anti-malware program. Downloading this software will not only save you some time, but will remove all of Grandoreiro files and programs related to it and will protect your computer against such intrusive apps and malware in the future.
Martin Beltov
Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.
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- Guide 1: How to Remove Grandoreiro Trojan from Windows.
- Guide 2: Get rid of Grandoreiro Trojan from Mac OS X.
- Guide 3: Remove Grandoreiro Trojan from Google Chrome.
- Guide 4: Erase Grandoreiro Trojan from Mozilla Firefox.
- Guide 5: Uninstall Grandoreiro Trojan from Microsoft Edge.
- Guide 6: Remove Grandoreiro Trojan from Safari.
- Guide 7: Eliminate Grandoreiro Trojan from Internet Explorer.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
How to Remove Grandoreiro Trojan from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Grandoreiro Trojan
Step 2: Uninstall Grandoreiro Trojan 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. To do that:
Follow the instructions above and you will successfully uninstall most programs.
Step 3: Clean any registries, created by Grandoreiro Trojan on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by Grandoreiro Trojan there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Get rid of Grandoreiro Trojan from Mac OS X.
Step 1: Uninstall Grandoreiro Trojan 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 Grandoreiro Trojan 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:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Grandoreiro Trojan files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Grandoreiro Trojan, 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove Grandoreiro Trojan 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Erase Grandoreiro Trojan 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Uninstall Grandoreiro Trojan 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove Grandoreiro Trojan 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 Grandoreiro Trojan will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Eliminate Grandoreiro Trojan 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.
