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Danger level 7
Type: Trojans
Common infection symptoms:
  • Slow Computer
  • System crashes
  • Connects to the internet without permission
  • Installs itself without permissions
  • Can't be uninstalled via Control Panel


Trojan.Minjen is a Monero miner that burrows deep into the operating system and then uses the system’s resources to create crypto-currency. The process is pretty complicated, and it requires a lot of GPU and CPU power, which is why malware was created. If cyber attackers use a malicious, silent Trojan that can attack a bunch of different systems at the same time, they have much better chances of making a lot of money fast. Smominru Miner, Crypto-Loot Miner, and Nscpucnminer32.exe Monero Miner are just a few other miners that were used for the mining of crypto-currency in the past. This new infection is not very different or unique, and it appears to function like a regular miner. Although its primary task is to mine crypto-currency, it could be used in many malicious ways, and, therefore, it certainly can create big problems. Needless to say, it is important to remove Trojan.Minjen. We hope that you will be able to delete this crypto-miner manually using the instructions presented below, but we also offer an alternative route that will guarantee a successful elimination of this threat.

There are no concrete details regarding the distribution of Trojan.Minjen, which leads us to believe that the threat could be distributed using different methods. You must stay cautious if you want to ensure that you do not let in malware by accident. For example, you should refrain from opening any spam email attachments and links. You also do not want to install software carelessly. Always use trustworthy sources, and do not agree to install additionally offered programs without inspecting and researching them first. If you let Trojan.Minjen in, you might not notice the threat until your system starts running disorderly, and you might not recognize the threat until a legitimate malware scanner identifies it. The components listed in the removal guide below might also help you identify the infection. To ensure that it is much harder for you to spot the infection or even to delete it, the Trojan can block the Task Manager too. So, if you cannot check which process is using up the CPU power, you might remain oblivious to the attack.

According to our research, Trojan.Minjen might make the entire operating system unresponsive, and that is because it could use up too much GPU and CPU power. The mining process requires this power because the infected machine has to solve complex computational problems to chain together Monero blocks, which are transactions. A miner processes every Monero transaction one by one. Once in a action, a miner is rewarded Monero at specific intervals. Without the computing power, this process is impossible. To ensure that this is possible, Trojan.Minjen installs as a service and communicates with a remote server to download the Monero miner. Although it was created to download a crypto-currency miner, it is believed that the threat could also be used to spy on users by recording keystrokes and mouse-clicks, download other malicious files, terminate processes, and transfer information about the affected system. Since there is a possibility that passwords, usernames, and other private information could be leaked, virtual privacy is a concern when discussing the removal of this malicious infection. Even if you are able to delete the Trojan successfully, do not forget to take care of your virtual security too.

During the analysis of Trojan.Minjen performed by our research team, the infection was downloaded as “svchost.exe” and “csrss.exe” files, but that does not mean that these are the names of the malicious Trojan that you will find on your own PC. The manual removal guide below lists the potential locations of the Trojan’s files, but it is crucial that you use a legitimate malware scanner if you decide to delete Trojan.Minjen yourself. Hopefully, you can eliminate the threat on your own, but if anything remains, you want to know about it as soon as possible. Since there is a possibility that you could fail at manual removal, that other threats could exist, and that Monero-mining Trojans could attack your system in the future, we strongly recommend installing legitimate anti-malware software. It will automatically eliminate all threats that exist now, and it will also ensure that other kinds of malware will not be able to slither in again.

Trojan.Minjen Removal

  1. Launch Windows Explorer (tap Win+E keys at the same time).
  2. Enter %WINDIR%\Fonts\ into the bar at the top.
  3. Delete any subfolders with names like a, bb, b1bb1, c (they should contain malicious .exe files).
  4. Exit Windows Explorer and tap launch RUN (tap Win+R keys).
  5. Enter regedit.exe and click OK to access Registry Editor.
  6. Move to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\.
  7. Delete the key named vmictimes and exit Registry Editor.
  8. Empty Recycle Bin and then use a legitimate malware scanner to check your operating system for leftovers.
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