What Is Bearfoos?
The Bearfoos Trojan as a dangerous new threat is being released on the Internet to gamers worldwide mainly via malicious Dungeon Fighter Online game files. There is no information available about the hackers behind it, we presume that they may be experienced as they have been able to integrate malicious code into such payload carriers.
Every single attack campaign can feature a different malware tactic. This includes the most common ones such as information harvesting, removal and bypass of security software and changing important computer parameters. Most of the samples will make modifications to the Windows Registry thereby leading to possible performance issues and loss of data.
Threat Summary
| Name | Bearfoos Trojan also known as Trojan:Win32/Bearfoos.B!ml |
| Type | Malware, Trojan |
| Short Description | Poses as a tool that will activate Microsoft and Windows products. |
| Symptoms | The victims may notice performance issues and can get infected with other malware. |
| Distribution Method | Mainly via download sites and file sharing networks. |
| Detection Tool |
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Bearfoos – How Did I Get Infected?
A significant number of the Trojan releases have been identified in a campaign suing an online game called Dungeon Fighter Online. The criminals are releasing game related data, including installers that game addons. Many players have reported that the files are spread using a variety of techniques — download portals, social media posts and file-sharing networks.
The Bearfoos Trojan can be spread using a variety of different tactics. There are many variants of it which are spread using various collectives. Our security research shows that there are many versions using the Bearfoos name and alternatives as well. This allows the criminal collectives to launch a multitude of attacks bearing different versions of the malware.
One of the main techniques is the coordination of phishing email messages which coerce the victims to interact with the included content. They are designed to appear as legitimate notifications sent from well-known services and companies. The Bearfoos Trojan files can be either attached or inserted as text links.
Hacker-made sites that pose as legitimate download portals, search engines and software product pages will scam the users into downloading and running the application. They are generally hosted on domains that sound similar to popular sources and may include self-signed security certificates.
To increase the number of infected victims the criminals can also place the Bearfoos Trojan in payload carriers such as macro-infected documents and malware application bundles. They are widely downloaded from the Internet by end users and may be found on file-sharing sites as well like BitTorrent.
Such infections can also be spread via browser hijackers which are dangerous web browser extensions that are usually uploaded to the repositories of the most popular browsers.
Bearfoos – Malicious Activities
The Bearfoos Trojan upon execution will start its infection process as soon as the infection occurs. Its main goal is to start a secure and persistent connection to a hacker-controlled server. It allows the criminals to take over control of the affected computers, steal their data and deploy other threats.
Such malware can execute many different tactics depending on the exact attack campaign. Most of them are used in order to serve as payload carriers for other threats. Popular options are the following:
- Data Theft — The Bearfoos Trojan may include an information harvesting ability which is capable of acquiring data that ca directly expose the identity of the victim users.
- Machine Identification — Many similar threats are programmed to extract the list of installed hardware components ,specific operating system environment values and user settngs which are then processed by a special algorithm that will output an unique infection ID that is to be assigned to each different computer.
- Windows Registry Changes — The Bearfoos Trojan can create entries for itself in the Windows Registry which can make its removal more difficult. If it edits existing values then serious performance issues can arise. Data loss and errors are a common side effect of this operation.
- Boot Menu Options Modification — Some Bearfoos Trojan versions can modify the boot options in order to automatically start themselves when the computer is powered on. By disabling access to these options manual user removal guides can become worthless.
- Data Removal — The engine can be configured to locate and delete files such as system backups, restore files and shadow volume copies. This makes recovery much more difficult and in this case the use of a data recovery solution needs to be used.
Any future Bearfoos variants can include other malicious actions as per the hacker’s instructions.
Is Bearfoos a Virus?
Bearfoos also known as Trojan:Win32/Bearfoos.B!ml is classified as a trojan horse.
What Is the Difference Between a Computer Virus and a Trojan Horse?
A computer virus is malicious software that runs on a computer and replicates itself in order to spread and cause damage to the system. It can slow down the computer’s performance, steal information, and display pop-up ads. A trojan horse, on the other hand, is a type of malicious software disguised as a legitimate application that can allow a cyber attacker to gain access to a user’s system, steal data, or perform other malicious activities.
While both can damage a computer system, the effects of a virus are generally more easily noticed as the virus will attempt to spread itself to other computers by replicating itself, whereas, trojans such as Bearfoos may stay on the system undetected, slowly causing havoc.
How to Remove Bearfoos Trojan
In order to fully remove Bearfoos 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 Bearfoos or programs, related to it, we suggest what most security experts advise – to download and run a scan of your comptuer with a reputable anti-malware program. Downloading this software will not only save you some time, but will remove all of Bearfoos files and programs related to it and will protect your computer against such intrusive apps and malware in the future.
Why SpyHunter Is Recommended for Removing Bearfoos Trojan
SpyHunter stands out as a preferred solution for removing dangerous malware such as the Bearfoos Trojan due to its comprehensive scanning mechanism and user-friendly interface. It goes beyond surface-level scans, delving deep into the system to identify and neutralize threats that other software might overlook. Moreover, SpyHunter is constantly updated to fight against latest malware variants, ensuring your system remains safeguarded against new threats.
The software is particularly beneficial for users who may not possess extensive technical knowledge. Its intuitive design simplifies the malware removal process, allowing users to secure their systems with just a few clicks. Furthermore, in scenarios where malware proves challenging to eliminate, SpyHunter offers personalized support through its Spyware HelpDesk, providing tailored assistance for complex issues.
In summary, while manual removal is an option for those with the requisite expertise, using SpyHunter is recommended for most users. Its effectiveness, combined with ease of use and dedicated support, makes it an invaluable tool in the fight against FakeBat loader malware and other security threats.
Post-Removal Steps: Securing Your System Against Future Threats
After successfully removing Bearfoos Trojan from your system, it’s critical to take proactive steps to ensure your system’s security against potential future attacks. These post-removal steps are not just about immediate fixes but are also geared towards strengthening your system’s defenses for long-term security. Incorporating regular security audits and creating comprehensive backups are essential habits that can significantly enhance your resilience against cyber threats.
Creating Backups to Prevent Data Loss
In the world of cybersecurity, backups act as a vital safety net, ensuring that your data remains safe in the event of an attack or system failure. Here’s a simple guide to creating effective backups:
- Automate the Backup Process: Set up automated backups to run at regular intervals, ensuring that you always have the most recent version of your data stored safely.
- Use Multiple Backup Solutions: Employ a combination of cloud and physical backups, such as external hard drives, for an extra layer of data protection.
- Test Your Backups: Regularly test your backups by restoring a small portion of data to ensure that your backup systems are functioning correctly and that data can be effectively recovered when needed.
Creating and maintaining robust backups not only helps in quick recovery from cyber incidents but also significantly minimizes potential data loss, making it an indispensable part of your cybersecurity toolkit.
By adopting these post-removal steps, you can enhance your system’s resilience against future cyber threats. Regularly conducting security audits to identify and mitigate vulnerabilities, combined with creating reliable backups, lays a solid foundation for your cybersecurity strategy.
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 Bearfoos 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 Bearfoos Trojan with SpyHunter Anti-Malware Tool
Step 2: Clean any registries, created by Bearfoos 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 Bearfoos 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 Bearfoos 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.
Bearfoos Trojan FAQ
What Does Bearfoos Trojan Trojan Do?
The Bearfoos 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 Bearfoos 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 Bearfoos 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 a factory reset.
Can Bearfoos 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 Bearfoos Trojan Research
The content we publish on SensorsTechForum.com, this Bearfoos 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 Bearfoos 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 Bearfoos Trojan threat is backed with VirusTotal.
To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.