Trojan:Win32/Nanocore.B!MTB Virus Removal

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

Seeing the Trojan:Win32/Nanocore.B!MTB malware detection usually means that your system is in big danger. This virus can correctly be identified as ransomware – sort of malware which encrypts your files and forces you to pay for their decryption. Deleteing it requires some peculiar steps that must be taken as soon as possible.

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Trojan:Win32/Nanocore.B!MTB detection is a malware detection you can spectate in your computer. It generally shows up after the preliminary activities on your PC – opening the untrustworthy email, clicking the advertisement in the Internet or installing the program from dubious resources. From the moment it shows up, you have a short time to do something about it before it starts its destructive action. And be sure – it is much better not to await these harmful actions.

What is Trojan:Win32/Nanocore.B!MTB virus?

Trojan:Win32/Nanocore.B!MTB is ransomware-type malware. It looks for the files on your disk drive, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this malware additionally does a lot of harm to your system. It alters the networking setups in order to avoid you from checking out the removal guidelines or downloading the antivirus. Sometimes, Trojan:Win32/Nanocore.B!MTB can also prevent the launching of anti-malware programs.

Trojan:Win32/Nanocore.B!MTB Summary

In summary, Trojan:Win32/Nanocore.B!MTB virus actions in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Behavioural detection: Injection (inter-process);
  • Ciphering the documents located on the victim’s disk drives — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of security tools

Ransomware has actually been a horror story for the last 4 years. It is challenging to picture a more hazardous virus for both individual users and corporations. The algorithms used in Trojan:Win32/Nanocore.B!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy actually exists, and possibly will exist. However, that malware does not do all these bad things immediately – it may require up to a few hours to cipher all of your documents. Thus, seeing the Trojan:Win32/Nanocore.B!MTB detection is a clear signal that you need to start the removal procedure.

Where did I get the Trojan:Win32/Nanocore.B!MTB?

Common tactics of Trojan:Win32/Nanocore.B!MTB spreading are common for all other ransomware examples. Those are one-day landing websites where users are offered to download the free software, so-called bait emails and hacktools. Bait emails are a pretty modern tactic in malware spreading – you receive the e-mail that imitates some routine notifications about deliveries or bank service conditions shifts. Within the e-mail, there is a malicious MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks fairly simple, however, still needs a lot of recognition. Malware can hide in various places, and it is better to stop it even before it invades your PC than to trust in an anti-malware program. Standard cybersecurity knowledge is just an important thing in the modern-day world, even if your interaction with a PC stays on YouTube videos. That can keep you a great deal of money and time which you would certainly spend while seeking a fix guide.

Trojan:Win32/Nanocore.B!MTB malware technical details

File Info:

name: 489FC51AB9732B0DFF8B.mlw
path: /opt/CAPEv2/storage/binaries/0d8f67278b9975e53cef73e21b4be04b7689d9e3bd8408772361b7ff5c97b3ec
crc32: 44EE708A
md5: 489fc51ab9732b0dff8bdae188f6cf8e
sha1: 9429e6352d750da6322e7f5ae2c8d71f72991c2f
sha256: 0d8f67278b9975e53cef73e21b4be04b7689d9e3bd8408772361b7ff5c97b3ec
sha512: 8073435c638908efda2591e2569a35a9337bd6ad37d14effd9d27c3c575d6f4c2f2a4cf681dad47c3daf52428ba54726e67f481c184a291f3246c7307af4f918
ssdeep: 12288:FUXBVVN+jL7n5fsr+7YHQp6JCkvOgUZRkZeykx:Fe3VNy75YzIPeOpLk0dx
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13EB4BF36F2D04437D2732A3C9C5B5E64AC3EBE503E2958462BE81D4C5F39782396929F
sha3_384: ceacb5ea975bc68f9b6f146731a62d28593898d71deac3b527ba83d05de2c0ddc496d145992cf64cedb6f74d41407e76
ep_bytes: 558bec83c4f0b84ceb4400e8206ffbff
timestamp: 1992-06-19 22:22:17

Version Info:

License: This program is free softrib ande terms of the GNU General Public License;see
FileDescription: Gperf: generatfect hash function from a key set
InternalName: gperf
LegalCopyright: © e Softwre>
LegalTrademarks: GNUerf®
OriginalFilename: gperf.exe
ProductName: Gperf
SpecialBuild: GNU in32
WWW: http://wf.html
Translation: 0x0409 0x04e4

Trojan:Win32/Nanocore.B!MTB also known as:

K7AntiVirusTrojan ( 005687bd1 )
K7GWTrojan ( 005687bd1 )
CrowdStrikewin/malicious_confidence_100% (W)
Elasticmalicious (high confidence)
ESET-NOD32a variant of Win32/Injector.ELUM
CynetMalicious (score: 100)
RisingTrojan.Kryptik!1.C625 (CLASSIC)
EmsisoftGen:Variant.Ransom.Loki.9409 (B)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=100)
AVGWin32:RATX-gen [Trj]
AvastWin32:RATX-gen [Trj]

How to remove Trojan:Win32/Nanocore.B!MTB?

Trojan:Win32/Nanocore.B!MTB malware is extremely difficult to eliminate manually. It places its data in several locations throughout the disk, and can recover itself from one of the parts. Furthermore, various alterations in the registry, networking setups and also Group Policies are pretty hard to identify and revert to the initial. It is better to make use of a special app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for virus elimination reasons.

Remove Trojan:Win32/Nanocore.B!MTB with Gridinsoft Anti-Malware

We have also been using this software on our systems ever since, and it has always been successful in detecting viruses. It has blocked the most common Trojans as shown from our tests with the software, and we assure you that it can remove Trojan:Win32/Nanocore.B!MTB as well as other malware hiding on your computer.

Gridinsoft Anti-Malware - Main Screen

To use Gridinsoft for remove malicious threats, follow the steps below:

1. Begin by downloading Gridinsoft Anti-Malware, accessible via the blue button below or directly from the official website

2.Once the Gridinsoft setup file (setup-gridinsoft-fix.exe) is downloaded, execute it by clicking on the file.


3.Follow the installation setup wizard's instructions diligently.

Gridinsoft Setup Wizard

4. Access the "Scan Tab" on the application's start screen and launch a comprehensive "Full Scan" to examine your entire computer. This inclusive scan encompasses the memory, startup items, the registry, services, drivers, and all files, ensuring that it detects malware hidden in all possible locations.

Scan for Trojan:Win32/Nanocore.B!MTB Trojans

Be patient, as the scan duration depends on the number of files and your computer's hardware capabilities. Use this time to relax or attend to other tasks.

5. Upon completion, Anti-Malware will present a detailed report containing all the detected malicious items and threats on your PC.

The Trojan:Win32/Nanocore.B!MTB was Found

6. Select all the identified items from the report and confidently click the "Clean Now" button. This action will safely remove the malicious files from your computer, transferring them to the secure quarantine zone of the anti-malware program to prevent any further harmful actions.

The Trojan:Win32/Nanocore.B!MTB has been removed

8. If prompted, restart your computer to finalize the full system scan procedure. This step is crucial to ensure thorough removal of any remaining threats. After the restart, Gridinsoft Anti-Malware will open and display a message confirming the completion of the scan.

Remember Gridinsoft offers a 6-day free trial. This means you can take advantage of the trial period at no cost to experience the full benefits of the software and prevent any future malware infections on your system. Embrace this opportunity to fortify your computer's security without any financial commitment.

Trojan Killer for “Trojan:Win32/Nanocore.B!MTB” removal on locked PC

In situations where it becomes impossible to download antivirus applications directly onto the infected computer due to malware blocking access to websites, an alternative solution is to utilize the Trojan Killer application.

Trojan Killer - Main View

There is a really little number of security tools that are able to be set up on the USB drives, and antiviruses that can do so in most cases require to obtain quite an expensive license. For this instance, I can recommend you to use another solution of GridinSoft - Trojan Killer Portable. It has a 14-days cost-free trial mode that offers the entire features of the paid version. This term will definitely be 100% enough to wipe malware out.

Trojan Killer is a valuable tool in your cybersecurity arsenal, helping you to effectively remove malware from infected computers. Now, we will walk you through the process of using Trojan Killer from a USB flash drive to scan and remove malware on an infected PC. Remember, always obtain permission to scan and remove malware from a computer that you do not own.

Step 1: Download & Install Trojan Killer on a Clean Computer:

1. Go to the official GridinSoft website ( and download Trojan Killer to a computer that is not infected.

Download Trojan Killer

2. Insert a USB flash drive into this computer.

3. Install Trojan Killer to the "removable drive" following the on-screen instructions.

Install Trojan Killer to Removable Drive

4. Once the installation is complete, launch Trojan Killer.

Step 2: Update Signature Databases:

5. After launching Trojan Killer, ensure that your computer is connected to the Internet.

6. Click "Update" icon to download the latest signature databases, which will ensure the tool can detect the most recent threats.

Click Update Button

Step 3: Scan the Infected PC:

7. Safely eject the USB flash drive from the clean computer.

8. Boot the infected computer to the Safe Mode.

9. Insert the USB flash drive.

10. Run tk.exe

11. Once the program is open, click on "Full Scan" to begin the malware scanning process.

Searching Trojan:Win32/Nanocore.B!MTB Virus

Step 4: Remove Found Threats:

12. After the scan is complete, Trojan Killer will display a list of detected threats.

Searching Trojan:Win32/Nanocore.B!MTB Finished

13. Click on "Cure PC!" to remove the identified malware from the infected PC.

14. Follow any additional on-screen prompts to complete the removal process.

Restart needed

Step 5: Restart Your Computer:

15. Once the threats are removed, click on "Restart PC" to reboot your computer.

16. Remove the USB flash drive from the infected computer.

Congratulations on effectively removing Trojan:Win32/Nanocore.B!MTB and the concealed threats from your computer! You can now have peace of mind, knowing that they won't resurface again. Thanks to Gridinsoft's capabilities and commitment to cybersecurity, your system is now protected.

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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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