MSIL/Filecoder.AFS Virus Removal

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

Spectating the MSIL/Filecoder.AFS detection name usually means that your PC is in big danger. This virus can correctly be identified as ransomware – virus which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be taken as soon as possible.

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MSIL/Filecoder.AFS detection is a virus detection you can spectate in your system. It usually shows up after the provoking actions on your computer – opening the untrustworthy email, clicking the banner in the Internet or mounting the program from untrustworthy resources. From the second it appears, you have a short time to take action before it begins its destructive action. And be sure – it is better not to wait for these harmful actions.

What is MSIL/Filecoder.AFS virus?

MSIL/Filecoder.AFS is ransomware-type malware. It searches for the documents on your disk drive, ciphers it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this malware also does a ton of damage to your system. It changes the networking setups in order to avoid you from checking out the removal articles or downloading the anti-malware program. Sometimes, MSIL/Filecoder.AFS can also stop the launching of anti-malware programs.

MSIL/Filecoder.AFS Summary

Summarizingly, MSIL/Filecoder.AFS malware activities in the infected computer are next:

  • CAPE extracted potentially suspicious content;
  • Authenticode signature is invalid;
  • Ciphering the documents located on the victim’s drive — so the victim cannot use these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has actually been a major problem for the last 4 years. It is difficult to realize a more hazardous malware for both individual users and corporations. The algorithms used in MSIL/Filecoder.AFS (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 currently exists, and possibly will exist. But that malware does not do all these horrible things without delay – it may take up to a few hours to cipher all of your documents. Therefore, seeing the MSIL/Filecoder.AFS detection is a clear signal that you should begin the removal procedure.

Where did I get the MSIL/Filecoder.AFS?

Typical tactics of MSIL/Filecoder.AFS spreading are common for all other ransomware examples. Those are one-day landing websites where users are offered to download and install the free app, so-called bait emails and hacktools. Bait e-mails are a quite modern strategy in malware spreading – you get the e-mail that imitates some routine notifications about deliveries or bank service conditions modifications. Within the e-mail, there is a corrupted MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Preventing it looks fairly simple, but still requires a lot of recognition. Malware can hide in various places, and it is better to stop it even before it gets into your computer than to rely on an anti-malware program. Essential cybersecurity knowledge is just an important thing in the modern world, even if your interaction with a PC remains on YouTube videos. That can save you a great deal of money and time which you would certainly spend while searching for a fix guide.

MSIL/Filecoder.AFS malware technical details

File Info:

name: 47B201D641330387D112.mlw
path: /opt/CAPEv2/storage/binaries/c421ea25ee90cc0320ee7154d3fe361f625865b610b5e9812a784ce51b20c2eb
crc32: 08CB0C6C
md5: 47b201d641330387d112b4622a8bd6f1
sha1: f1dfc084882875ee893623636f34f30b4adc8272
sha256: c421ea25ee90cc0320ee7154d3fe361f625865b610b5e9812a784ce51b20c2eb
sha512: 72bb9a2beb62928dfb269df83b819ce4e7242fef9f8237e9d1fa0cb0cc9ee926db8b5ca594f2d9e5bbfe0d50af7ab3a9d4441b5b8f47b1ad57b44b397724b09d
ssdeep: 96:fkuSDvXdsKSjEKHw7npUAGU/2jN05L80vC7umDWGDOzWJka2gJ4zNt:fkTsK7z7pPON05LiSmqFzWil
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1C5F1D711A7E88532ECBB6F35ACB603004B75BB4B8C7BCF4E7881A15F1DA26548551BB2
sha3_384: a543481453160f815074fa4eab10e4829b5cf35e59d15d238854a312b954ba38d84e3e523b39d67f072f4fd4b3a3c05b
ep_bytes: ff250020400000000000000000000000
timestamp: 2018-08-03 06:15:19

Version Info:

Translation: 0x0000 0x04b0
CompanyName: Microsoft
FileDescription: Ransom
InternalName: Ransom.exe
LegalCopyright: Copyright © Microsoft 2018
OriginalFilename: Ransom.exe
ProductName: Ransom
Assembly Version:

MSIL/Filecoder.AFS also known as:

K7GWTrojan ( 700000121 )
K7AntiVirusTrojan ( 700000121 )
ESET-NOD32a variant of MSIL/Filecoder.AFS
EmsisoftTrojan.FileCoder (A)
MAXmalware (ai score=82)

How to remove MSIL/Filecoder.AFS?

MSIL/Filecoder.AFS malware is extremely hard to remove by hand. It stores its files in numerous locations throughout the disk, and can get back itself from one of the parts. Moreover, a number of alterations in the windows registry, networking configurations and also Group Policies are really hard to find and revert to the initial. It is much better to make use of a special tool – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for virus removal goals.

Remove MSIL/Filecoder.AFS 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 MSIL/Filecoder.AFS 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 MSIL/Filecoder.AFS 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 MSIL/Filecoder.AFS 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 MSIL/Filecoder.AFS 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 “MSIL/Filecoder.AFS” 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 MSIL/Filecoder.AFS Virus

Step 4: Remove Found Threats:

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

Searching MSIL/Filecoder.AFS 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 MSIL/Filecoder.AFS 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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