Written by Robert Bailey

What is MSIL/Filecoder.Jigsaw.I infection?

In this short article you will certainly find about the meaning of MSIL/Filecoder.Jigsaw.I as well as its negative influence on your computer. Such ransomware are a type of malware that is elaborated by online scams to demand paying the ransom by a target.

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In the majority of the cases, MSIL/Filecoder.Jigsaw.I ransomware will advise its victims to launch funds transfer for the function of counteracting the modifications that the Trojan infection has presented to the victim’s gadget.

MSIL/Filecoder.Jigsaw.I Summary

These modifications can be as adheres to:

  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the papers located on the target’s hard disk — so the victim can no longer use the information;
  • Preventing regular accessibility to the sufferer’s workstation;


The most regular channels through which MSIL/Filecoder.Jigsaw.I Ransomware are injected are:

  • By ways of phishing e-mails;
  • As a consequence of customer winding up on a resource that organizes a destructive software application;

As soon as the Trojan is effectively infused, it will either cipher the data on the victim’s PC or avoid the tool from working in a correct way – while likewise placing a ransom money note that states the need for the targets to impact the settlement for the objective of decrypting the papers or bring back the file system back to the preliminary condition. In most circumstances, the ransom note will show up when the customer reboots the COMPUTER after the system has currently been damaged.

MSIL/Filecoder.Jigsaw.I circulation channels.

In different edges of the globe, MSIL/Filecoder.Jigsaw.I grows by jumps and also bounds. However, the ransom notes and tricks of obtaining the ransom quantity may differ relying on particular neighborhood (regional) setups. The ransom notes and techniques of extorting the ransom money amount might differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In particular areas, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s gadget. The alert then demands the user to pay the ransom money.

    Faulty declarations concerning unlawful material.

    In countries where software piracy is less prominent, this approach is not as reliable for the cyber fraudulences. Conversely, the MSIL/Filecoder.Jigsaw.I popup alert might falsely claim to be stemming from a law enforcement establishment and will certainly report having situated youngster pornography or other unlawful data on the device.

    MSIL/Filecoder.Jigsaw.I popup alert might falsely claim to be acquiring from a law enforcement establishment and will certainly report having situated child porn or various other illegal data on the device. The alert will similarly consist of a need for the individual to pay the ransom.

Technical details

File Info:

crc32: CA94D6FF
md5: f5241961c0ec5edf29d3177595a1cbe4
name: F5241961C0EC5EDF29D3177595A1CBE4.mlw
sha1: 9f5a8c22f32db21a09b680a08ec64e57deb5b84a
sha256: a21cc69eb6e99d7d225c955e667e8dc3de252bcc81da901a37ba3f3038114eba
sha512: 521f96badb210ba84bcce76e6f66ec5fc68cfd0808b44df4f1b7b28d3a63b61ad118e07f5193c20db89788a983b8da1cc581b1486398240d57b6572d23e47325
ssdeep: 384:0dWUxJpmoeOpqsl5aDQ6K9YNvt3Z5rMJLW+kjvWhR9l3q8CMb:J46O7QQKVSRRfbb
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2021
Assembly Version:
InternalName: Invert.exe
ProductName: Invert
FileDescription: Invert
OriginalFilename: Invert.exe

MSIL/Filecoder.Jigsaw.I also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb Trojan.EncoderNET.1
ALYac Generic.Ransom.Small.14BB7031
BitDefender Generic.Ransom.Small.14BB7031
ESET-NOD32 a variant of MSIL/Filecoder.Jigsaw.I
APEX Malicious
Cynet Malicious (score: 100)
MicroWorld-eScan Generic.Ransom.Small.14BB7031
Ad-Aware Generic.Ransom.Small.14BB7031
BitDefenderTheta Gen:NN.ZemsilF.34126.bm0@aaXSNro
FireEye Generic.Ransom.Small.14BB7031
Emsisoft Generic.Ransom.Small.14BB7031 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1140783
eGambit Unsafe.AI_Score_89%
Antiy-AVL Trojan/Generic.ASCommon.18E
Microsoft Ransom:MSIL/Filecoder.DA!MTB
Arcabit Generic.Ransom.Small.14BB7031
GData Generic.Ransom.Small.14BB7031
MAX malware (ai score=87)
Malwarebytes Ransom.Jigsaw.Generic
Ikarus Trojan-Ransom.JigSaw
MaxSecure Trojan.Malware.300983.susgen

How to remove MSIL/Filecoder.Jigsaw.I virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for MSIL/Filecoder.Jigsaw.I files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/Filecoder.Jigsaw.I you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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