What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the MSIL/Filecoder.EvilNominatus.A detection means that your PC is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and asks you to pay for their decryption. Stopping it requires some peculiar steps that must be taken as soon as possible.
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MSIL/Filecoder.EvilNominatus.A detection is a malware detection you can spectate in your computer. It frequently appears after the provoking procedures on your computer – opening the suspicious e-mail messages, clicking the advertisement in the Internet or installing the program from suspicious sources. From the instance it appears, you have a short time to take action before it begins its malicious activity. And be sure – it is better not to await these harmful actions.

What is MSIL/Filecoder.EvilNominatus.A virus?

MSIL/Filecoder.EvilNominatus.A is ransomware-type malware. It looks for the files on your disks, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this virus also does a lot of harm to your system. It alters the networking setups in order to avoid you from looking for the removal guidelines or downloading the anti-malware program. In rare cases, MSIL/Filecoder.EvilNominatus.A can also prevent the setup of anti-malware programs.

MSIL/Filecoder.EvilNominatus.A Summary

Summarizingly, MSIL/Filecoder.EvilNominatus.A ransomware activities in the infected system are next:

  • Dynamic (imported) function loading detected;
  • CAPE extracted potentially suspicious content;
  • Authenticode signature is invalid;
  • Ciphering the documents kept on the victim’s drives — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of security tools

Ransomware has been a major problem for the last 4 years. It is difficult to realize a more dangerous virus for both individuals and businesses. The algorithms utilized in MSIL/Filecoder.EvilNominatus.A (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy currently exists, and possibly will exist. However, that malware does not do all these bad things without delay – it can require up to several hours to cipher all of your documents. Thus, seeing the MSIL/Filecoder.EvilNominatus.A detection is a clear signal that you should begin the elimination process.

Where did I get the MSIL/Filecoder.EvilNominatus.A?

Routine methods of MSIL/Filecoder.EvilNominatus.A spreading are basic for all other ransomware examples. Those are one-day landing sites where users are offered to download the free program, so-called bait emails and hacktools. Bait e-mails are a relatively modern strategy in malware spreading – you get the email that imitates some normal notifications about shippings or bank service conditions changes. Inside of the e-mail, there is an infected MS Office file, or a link which opens the exploit landing site.

Malicious email spam

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

Avoiding it looks pretty uncomplicated, however, still demands tons of attention. Malware can hide in various places, and it is better to prevent it even before it goes into your computer than to trust in an anti-malware program. Basic cybersecurity knowledge is just an important thing in the modern-day world, even if your interaction with a computer stays on YouTube videos. That can keep you a great deal of time and money which you would spend while looking for a fix guide.

MSIL/Filecoder.EvilNominatus.A malware technical details

File Info:

name: 4707BFC8B8EEB2268D2C.mlw
path: /opt/CAPEv2/storage/binaries/25cd54c48502fc5635cff99fc5ca3217bb6fa158901a1d4e18f8bd3441cb76f5
crc32: 61F8B7E8
md5: 4707bfc8b8eeb2268d2c5d95688de83f
sha1: 219bce18a2d3473791587a6c154d29879211c251
sha256: 25cd54c48502fc5635cff99fc5ca3217bb6fa158901a1d4e18f8bd3441cb76f5
sha512: 166935cad61cc73f8a1e0ab1861361b10edc17168181b65d4cb08f650582448c55d8ee3a3ee13b5e4bf63fd819f8f112227f20c1a63141cfdba8f63da97abfec
ssdeep: 384:iD918Cvwt1K/QUpvuokwlwAoox5qgHyqDo5U5vAgZs2KwuYf1U:ipO008LDo5IYJ26V
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T14292B319EEF752DDC47FBE768DE2835752A0E901A83DD71F098113DA0A636008A93F76
sha3_384: 51733c76412c24b51bfcff5a90a3186b0040fbd49ddacd7e7e0f9d8c0a606dc0933c0e4ff754fe7d738ed9511fc259c0
ep_bytes: ff250020400000000000000000000000
timestamp: 2021-12-08 14:46:23

Version Info:

Translation: 0x0000 0x04b0
FileDescription: EvilNominatus
FileVersion: 1.0.8012.12191
InternalName: EvilNominatus.exe
LegalCopyright: Copyright 2021
OriginalFilename: EvilNominatus.exe
ProductName: EvilNominatus
ProductVersion: 1.0.8012.12191
Assembly Version: 1.0.8012.12191

MSIL/Filecoder.EvilNominatus.A also known as:

K7AntiVirusTrojan ( 0058aeb01 )
K7GWTrojan ( 0058aeb01 )
ESET-NOD32a variant of MSIL/Filecoder.EvilNominatus.A
AvastWin32:MalwareX-gen [Trj]
EmsisoftGen:Variant.Bulz.366169 (B)
MAXmalware (ai score=89)
SentinelOneStatic AI – Suspicious PE
AVGWin32:MalwareX-gen [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove MSIL/Filecoder.EvilNominatus.A?

MSIL/Filecoder.EvilNominatus.A malware is extremely difficult to remove manually. It stores its documents in multiple places throughout the disk, and can restore itself from one of the elements. Moreover, a lot of changes in the registry, networking configurations and also Group Policies are pretty hard to discover and revert to the initial. It is far better to use a specific program – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for virus removal objectives.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated practically every hour. In addition, it does not have such bugs and exploits as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for getting rid of malware of any form.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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.


  1. Nominatus February 20, 2022
  2. Nominatus February 21, 2022

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