How to remove GoBear backdoor
Written by Tomas Meskauskas on
What kind of malware is GoBear?
GoBear is a backdoor malware crafted in the Go language and authenticated with a legitimate D2innovation Co.,LTD certificate. This insidious threat operates by executing malicious commands received from a Command and Control (C&C) server. Notably, GoBear enhances its capabilities by integrating SOCKS5 proxy functionality.
More about GoBear
GoBear employs the same commands as the BetaSeed malware, a notorious information-stealing threat, to steal data from the victim's system and execute further malicious actions. Given its backdoor capabilities, GoBear could establish persistent access to the infected system, allowing attackers to control and manipulate the device remotely.
This could involve installing additional malware, such as ransomware or keyloggers, to extract sensitive information or extort the victim for financial gain. Moreover, GoBear might engage in reconnaissance activities to gather intelligence about the victim's system and network environment.
This could involve scanning for vulnerable software or open ports and identifying potential entry points for further exploitation or lateral movement within the network. Additionally, GoBear could exfiltrate sensitive data from the infected system, including personal information, login credentials, or proprietary business data, which could then be used for identity theft, fraud, or sold on underground markets.
Furthermore, GoBear's integration of SOCKS5 proxy functionality suggests a potential for facilitating covert communication or anonymizing the attacker's activities. This could involve routing malicious traffic through intermediary servers to evade detection or bypass network security measures.
Overall, the possibilities for further malicious actions by GoBear are extensive and could have significant ramifications for the victim and their organization.
As previously stated, GoBear bears the signature of a genuine D2innovation Co.,LTD certificate, indicating potential theft of the company's certification. Notably, this same certificate has been utilized by another malware known as Troll.
| Name | GoBear malware |
| Threat Type | Backdoor |
| Detection Names | Avast (Win64:Evo-gen [Trj]), Combo Cleaner (Gen:Variant.Lazy.459270), ESET-NOD32 (A Variant Of Win32/GenCBL.EKB), Kaspersky (Trojan.Win32.SelfDel.imwn), Microsoft (Trojan:Win64/SelfDel!MTB), Full List (VirusTotal) |
| Symptoms | Backdoor malware is usually designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine. |
| Distribution methods | Malicious installers, compromised pages, infected email attachments, malicious online advertisements, social engineering, software 'cracks'. |
| Damage | Stolen passwords and banking information, identity theft, the victim's computer added to a botnet, and more. |
| Malware Removal (Windows) | To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. |
Conclusion
In conclusion, GoBear poses a significant threat as a backdoor malware equipped with the capabilities to steal sensitive information and execute malicious commands. Its sophisticated tactics and use of legitimate certificates underscore the evolving nature of cyber threats, necessitating constant vigilance and proactive security measures.
More examples of backdoor malware are SPICA, Sponsor, and WhiskerSpy.
How did GoBear infiltrate my computer?
Since GoBear and the malware known as Troll are signed with the same certificate, their distribution methods may share similarities. GoBear may be distributed via websites that redirect users to a page offering security program downloads, where the malware masquerades as an installation file.
Apart from deceptive downloads from compromised websites, users can inadvertently infect their computers through malicious attachments or links in emails, pirated software, infected USB drives, malicious advertisements, downloads from P2P networks, third-party downloaders, and similar channels. Using outdated software can also result in computer infections.
How to avoid installation of malware?
Avoid interaction with suspicious links, advertisements, and downloads from untrustworthy sources. Use official websites to download files and programs to mitigate the risk of malware infiltration. Remain vigilant when handling email attachments and links from unfamiliar senders, as these often serve as conduits for attacks aimed at disseminating malware.
Ensure the regular updating of the operating system and installed programs, alongside implementing a reliable antivirus or anti-malware solution. Conduct periodic system scans to promptly identify and eradicate potential malware threats.
If you believe that your computer is already infected, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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How to remove malware manually?
Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Combo Cleaner Antivirus for Windows.
If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:
If you checked the list of programs running on your computer, for example, using task manager, and identified a program that looks suspicious, you should continue with these steps:
Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:
Restart your computer into Safe Mode:
Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.
Video showing how to start Windows 7 in "Safe Mode with Networking":
Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup.
Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings".
Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.
Video showing how to start Windows 8 in "Safe Mode with Networking":
Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options".
In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.
Video showing how to start Windows 10 in "Safe Mode with Networking":
Extract the downloaded archive and run the Autoruns.exe file.
In the Autoruns application, click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.
Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.
You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate the suspicious program you wish to remove, right click your mouse over its name and choose "Delete".
After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, be sure to remove it.
Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs.
These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software. To be sure your computer is free of malware infections, we recommend scanning it with Combo Cleaner Antivirus for Windows.
Frequently Asked Questions (FAQ)
My computer is infected with GoBear malware, should I format my storage device to get rid of it?
Formatting your storage device to remove GoBear malware is a drastic measure that should be considered as a last resort. Before taking such action, attempt to remove the malware using reputable antivirus or antimalware software like Combo Cleaner.
What are the biggest issues that malware can cause?
The biggest problems that malware can cause include data theft, system corruption, financial loss, privacy breaches, and disruption of normal computer functions.
What is the purpose of GoBear malware?
The primary purpose of GoBear malware is to serve as a backdoor, providing unauthorized access to compromised systems for malicious actors. Additionally, it facilitates data theft, executes commands from a remote Command and Control (C&C) server, and may engage in other nefarious activities such as surveillance or further malware deployment.
How did a malware infiltrate my computer?
The malware might have gained access to your computer through deceptive means, such as masquerading as a legitimate program or exploiting vulnerabilities in software or operating systems. Additionally, interaction with malicious ads, downloading pirated software, opening malicious links or email attachments, inserting infected USB drives, or other actions could have contributed to the infection.
Will Combo Cleaner protect me from malware?
Combo Cleaner can detect and eliminate nearly all known malware infections. It is essential to recognize that advanced malware typically conceals itself deeply within the system. Hence, a thorough system scan is imperative to ensure detection and removal.
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