Written by Robert Bailey

What is MSIL/Filecoder.AIH infection?

In this short article you will find about the interpretation of MSIL/Filecoder.AIH and its adverse impact on your computer. Such ransomware are a type of malware that is elaborated by online fraudulences to require paying the ransom money by a target.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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Most of the situations, MSIL/Filecoder.AIH ransomware will certainly advise its victims to start funds transfer for the function of reducing the effects of the modifications that the Trojan infection has introduced to the target’s gadget.

MSIL/Filecoder.AIH Summary

These alterations can be as adheres to:

  • Network activity detected but not expressed in API logs;
  • Ciphering the records found on the target’s hard disk — so the sufferer can no longer use the information;
  • Preventing normal accessibility to the target’s workstation;

Related domains: Win32:RansomX-gen [Ransom]


One of the most regular channels through which MSIL/Filecoder.AIH are injected are:

  • By ways of phishing emails;
  • As an effect of user winding up on a resource that hosts a harmful software program;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s PC or prevent the gadget from functioning in a proper manner – while likewise placing a ransom money note that mentions the requirement for the sufferers to effect the payment for the function of decrypting the documents or restoring the data system back to the initial condition. In a lot of circumstances, the ransom note will certainly show up when the customer restarts the COMPUTER after the system has already been harmed.

MSIL/Filecoder.AIH distribution channels.

In numerous corners of the globe, MSIL/Filecoder.AIH grows by jumps as well as bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom quantity may vary relying on certain regional (local) settings. The ransom notes and also techniques of obtaining the ransom money quantity might vary depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In specific areas, the Trojans usually wrongfully report having actually discovered some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that requires the customer to pay the ransom.

    Faulty statements concerning unlawful material.

    In countries where software application piracy is much less prominent, this approach is not as effective for the cyber scams. Conversely, the MSIL/Filecoder.AIH popup alert may falsely claim to be stemming from a law enforcement organization and also will certainly report having situated kid pornography or various other prohibited information on the tool.

    MSIL/Filecoder.AIH popup alert may falsely assert to be acquiring from a regulation enforcement establishment and also will report having situated child porn or various other prohibited information on the device. The alert will in a similar way contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 751C62C1
md5: a755e4fbc6c9ec6b3c85e8a786e6dc17
name: A755E4FBC6C9EC6B3C85E8A786E6DC17.mlw
sha1: a093ed34b0c4ee0eec9eca50fc1f6a1db32f4ad3
sha256: 86bbbe8ee6aa9c285471208ced16cac27461db171100150eaad2095b10cc2016
sha512: b8c05a6e82bc4f58cdd7a330ab16795c5f9fab0b3dd9815bd4d33f13dee6e2b88053a43a75c6dac8a1cce49c8c27005592a13a53f530391e8ba922f74cda309c
ssdeep: 24576:KLfb8m657w6ZBLmkitKqBCjC0PDgM5AUbL+q7N7RfhT:ebVV1BCjBx
type: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2021
Assembly Version:
InternalName: Testcase5.exe
ProductName: Testcase3
FileDescription: Testcase3
OriginalFilename: Testcase5.exe

MSIL/Filecoder.AIH also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0057ecfa1 )
Lionic Trojan.Win32.Heracles.4!c
DrWeb Trojan.EncoderNET.31374
Cynet Malicious (score: 99)
ALYac Gen:Variant.MSILHeracles.25389
Alibaba Trojan:Win32/Filecoder.c438692c
K7GW Trojan ( 0057ecfa1 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Filecoder.AIH
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
BitDefender Trojan.GenericKD.46948251
MicroWorld-eScan Trojan.GenericKD.46948251
Tencent Msil.Trojan.Msilheracles.Lman
Ad-Aware Trojan.GenericKD.46948251
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZemsilF.34142.Dn0@aOmFHdd
FireEye Trojan.GenericKD.46948251
Emsisoft Trojan.GenericKD.46948251 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Downloader.Gen
Microsoft Trojan:Script/Phonzy.B!ml
GData Trojan.GenericKD.46948251
McAfee Artemis!A755E4FBC6C9
MAX malware (ai score=80)
Malwarebytes Ransom.FileCryptor
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet PossibleThreat
AVG Win32:RansomX-gen [Ransom]

How to remove MSIL/Filecoder.AIH ransomware?

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.AIH 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.AIH 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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