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The Daily Insight

MSIL/Small.FY

Author

Christopher Davis

Updated on April 12, 2026

What is MSIL/Small.FY infection?

In this post you will certainly discover regarding the definition of MSIL/Small.FY and its negative impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to demand paying the ransom by a target.

Most of the instances, MSIL/Small.FY infection will certainly instruct its sufferers to launch funds transfer for the purpose of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s device.

MSIL/Small.FY Summary

These alterations can be as follows:

  • Unconventionial language used in binary resources: Russian;
  • Anomalous binary characteristics;
  • Ciphering the papers found on the target’s hard disk drive — so the target can no more make use of the data;
  • Preventing normal access to the target’s workstation;

MSIL/Small.FY

One of the most regular channels through which MSIL/Small.FY are infused are:

  • By methods of phishing e-mails;
  • As a consequence of customer winding up on a source that holds a destructive software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the sufferer’s PC or prevent the device from operating in an appropriate manner – while additionally positioning a ransom money note that mentions the requirement for the targets to impact the repayment for the objective of decrypting the records or bring back the data system back to the preliminary condition. In the majority of circumstances, the ransom money note will certainly turn up when the client restarts the COMPUTER after the system has actually currently been damaged.

MSIL/Small.FY distribution networks.

In different edges of the world, MSIL/Small.FY expands by jumps and bounds. However, the ransom notes and tricks of extorting the ransom amount might differ depending on particular neighborhood (regional) settings. The ransom money notes as well as tricks of extorting the ransom amount may vary depending on particular neighborhood (local) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans commonly wrongfully report having identified some unlicensed applications enabled on the sufferer’s tool. The sharp then requires the customer to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software application piracy is much less popular, this approach is not as efficient for the cyber frauds. Additionally, the MSIL/Small.FY popup alert may incorrectly claim to be originating from a police institution and also will certainly report having situated child porn or other prohibited information on the tool.

    MSIL/Small.FY popup alert may incorrectly assert to be deriving from a law enforcement organization and also will report having located child porn or various other unlawful data on the gadget. The alert will similarly consist of a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 85FDD493md5: bcac149c8937427e202b026010cc9b61name: BCAC149C8937427E202B026010CC9B61.mlwsha1: 91827d6a8097ebc928f5c9ac14215489793dd40csha256: 54ef22c3ec285b28280274955724521b2a331a407b2bb2e822b1f42e0a762c33sha512: 652733fa77f0024b048ebe111205707f94bd9821769d07d29c8d07e80669fb65a2eefbca68d64b3cebcbf038417938fd43aa6e33920af97c805e3606bfcfa531ssdeep: 24576:OAT8QE+kXGHQc37fx/xB3IDFJ/CCJyFvd:OAI+wGdfv2ZJyFvdtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Crystal Disk Info FileDescription: Crystal Disk Info 4.5 Installation FileVersion: 4.5 Comments: CompanyName: Crystal Disk Info Translation: 0x0409 0x04e4

MSIL/Small.FY also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 004c54d71 )
LionicTrojan.Win32.Agent.4!c
CynetMalicious (score: 100)
ALYacGen:Variant.Ser.Ursu.4764
CylanceUnsafe
SangforTrojan.Win32.Tiggre.rfn
AlibabaTrojan:MSIL/Tiggre.eb777942
K7GWTrojan ( 004c54d71 )
Cybereasonmalicious.c89374
CyrenW32/Trojan.DIS.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32MSIL/Small.FY
APEXMalicious
AvastWin32:KeyloggerX-gen [Trj]
KasperskyTrojan.Win32.Agent.qwiszy
BitDefenderGen:Variant.Ser.Ursu.4764
NANO-AntivirusTrojan.Win32.Fkm.ekyxoc
MicroWorld-eScanGen:Variant.Ser.Ursu.4764
TencentWin32.Trojan.Agent.Pitw
SophosMal/Generic-S (PUA)
BitDefenderThetaGen:NN.ZemsilF.34236.dm0@ay9ockp
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_GEN.R002C0DJ121
McAfee-GW-EditionBehavesLike.Win32.HLLP.tc
FireEyeGeneric.mg.bcac149c8937427e
EmsisoftGen:Variant.Ser.Ursu.4764 (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Crypt.FKM.vbrc
Antiy-AVLTrojan/Generic.ASMalwS.18DFBFE
KingsoftWin32.Troj.Gener.(kcloud)
MicrosoftTrojan:Win32/Occamy.C54
GDataGen:Variant.Ser.Ursu.4764
McAfeeArtemis!BCAC149C8937
MAXmalware (ai score=81)
VBA32Trojan.Agent
TrendMicro-HouseCallTROJ_GEN.R002C0DJ121
Ikarusnot-a-virus:Client-IRC.Win32
MaxSecureTrojan-Ransom.Win32.Crypmod.zfq
AVGWin32:KeyloggerX-gen [Trj]
Paloaltogeneric.ml

How to remove MSIL/Small.FY virus?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.

Download GridinSoft Anti-Malware.

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

Download GridinSoft Anti-Malware

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/Small.FY 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/Small.FY you can always ask me in the comments for getting help.

References

  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products: