What Is Groooboor Trojan
Groooboor Trojan is one of the advanced malware which has been used in hacker attacks, the first versions of it were detected in 2017. It is mainly delivered to the victims via virus-infected files. It can not only overtake control of the computers, but also hijack user data and commit dangerous actions on the hosts.
Groooboor Trojan Summary
| Name | Groooboor Trojan |
| Type | Trojan/Keylogger |
| Short Description | Aims to steal data from your computer and run different malware actions. |
| Symptoms | Your computer may behave strangely and new files may be dropped in several Windows Directories. |
| Distribution Method | Common infection methods including phishing messages and malware-infected files. |
| Detection Tool |
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Groooboor Trojan – Virus Infection Methods
The Groooboor Trojan is a very dangerous Trojan which is known to the security community since 2017 when the first widespread campaign of it was detected by security researchers. It has been used by numerous hacking groups over the years in different distribution campaigns. The current campaign is focused on the use of phishing strategies and virus-infected office files in order to lead to the Trojan deployment. At this moment the identity of the hacking group is not known. We believe that they are an experienced group as they have been able to orchestrate a worldwide campaign.
The payload is based on Microsoft Word 2010 files which can be spread using common distribution methods, they are the following:
- Email SPAM Messages — The criminals can send out email messages in a bulk-like manner that can impersonate services and companies. They can also be delivery notifications, discount offers or advertise software patches and updates. Any interaction with such emails can lead to the deployment of the relevant virus file.
- Hacker-Controlled Sites — The criminals can create landing pages that look like landing pages, portals or other commonly accessed web pages. They can be hosted on similar sounding domain names and self-signed security certificates that will make it appear as if they are legitimate and safe to use. In many cases the creators will use similar design and may even copy down the authentic content. Through site interactions or file downloads the Trojan will be delivered to the target computers.
- Secondary Payload Delivery — The malware can be delivered as part of the virus infection sequence of another threat.
At any time the hackers can choose to use other strateгies as well, this will vary according to the campaign, as well as the hacking approach.
Groooboor Trojan – Virus Capabilities
The detected attack campaign carries the typical malware engine, according to the available information it does not differ that much from previous versions. Its main purpose is to establish a secure connection to a hacker-controlled server which will allow the criminals to take over control of the target machines. This will allow the hackers to also steal users data and spy on the victims in real-time. Every Trojan will have a specific way of doing so — the most common one is to take screenshot between regular intervals and sending them through the instituted data stream.
The Groooboor Trojan can be programmed with additional options, some of them are the following:
- Boot Changes — The Groooboor Trojan can install itself as a persistent threat by modifying the relevant boot configuration. As a result it will start itself automatically when the computer is launched and may even disable access to the recovery boot options. This will make it impossible to follow the directions in manual user recovery guides.
- Data Modification — The Trojan is able to delete sensitive data, including system restore points. Alongside this some of the advanced threats of this category may also include a ransomware component which will encrypt users data and rename it with a given extension. The resulting data will be inaccessible to the users and they will be blackmailed into paying the hackers a decryption fee.
- Windows Settings Changes — The malware can change important configuration files and the Windows Registry which can lead to serious issues. This can include performance problems to the point of rendering the computers completely unusable while the virus is active. Other consequences can be trouble with the starting of certain services and applications. Unexpected errors may also be encountered.
Identified viruses should be removed as fast as possible. In many cases Trojans like Grooobooor are programmed to deploy other malware to the systems — browser hijackers and separate file-encrypting ransomware for example. As part of this ransomware’s chain of operations a data gathering procedure can be run. It is tasked with the creation of an unique system ID which is created by a report of the installed hardware components and current software values.
You can attempt to remove the Grooobooor Trojan by following the detailed instructions in this article.
Groooboor Trojan – Virus Removal GUIDE
In order to fully remove this infection from your computer system, recommendations are to try the automatic removal guidelines below. They are particularly created in order to assist you separate this malware first of all and after that remove it’s destructive files. If you lack the experience in malware removal, the best method and most reliable one according to safety professionals is to use an innovative anti-malware software program. Such will not just immediately get rid of the Groooboor infection from your computer system, yet will certainly additionally ensure that your computer system remains shielded versus future infections.
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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Preparation before removing Groooboor Trojan.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
- Be patient as this could take a while.
- Scan for Malware
- Fix Registries
- Remove Virus Files
Step 1: Scan for Groooboor Trojan with SpyHunter Anti-Malware Tool
Step 2: Clean any registries, created by Groooboor 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 Groooboor 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.Step 3: Find virus files created by Groooboor Trojan on your PC.
1.For Windows 8, 8.1 and 10.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.
2.For Windows XP, Vista, and 7.
For Older Windows Operating Systems
In older Windows OS's the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
Groooboor Trojan FAQ
What Does Groooboor Trojan Trojan Do?
The Groooboor Trojan Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system.
It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.
Can Trojans Steal Passwords?
Yes, Trojans, like Groooboor Trojan, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.
Can Groooboor Trojan Trojan Hide Itself?
Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.
Can a Trojan be Removed by Factory Reset?
Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind, that there are more sophisticated Trojans, that leave backdoors and reinfect even after factory reset.
Can Groooboor Trojan Trojan Infect WiFi?
Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.
Can Trojans Be Deleted?
Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.
Can Trojans Steal Files?
Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.
Which Anti-Malware Can Remove Trojans?
Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.
Can Trojans Infect USB?
Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.
About the Groooboor Trojan Research
The content we publish on SensorsTechForum.com, this Groooboor Trojan how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.
How did we conduct the research on Groooboor Trojan?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of trojans (backdoor, downloader, infostealer, ransom, etc.)
Furthermore, the research behind the Groooboor Trojan threat is backed with VirusTotal.
To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.