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

What is MSIL/Small.FN infection?

In this short article you will locate about the meaning of MSIL/Small.FN and also its adverse impact on your computer system. Such ransomware are a form of malware that is clarified by online fraudulences to demand paying the ransom by a sufferer.

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Most of the instances, MSIL/Small.FN virus will certainly instruct its sufferers to initiate funds move for the purpose of neutralizing the amendments that the Trojan infection has presented to the victim’s tool.

MSIL/Small.FN Summary

These modifications can be as complies with:

  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the records located on the sufferer’s hard disk drive — so the sufferer can no longer use the data;
  • Preventing regular access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal networks whereby MSIL/Small.FN Ransomware are infused are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a source that holds a malicious software;

As soon as the Trojan is effectively injected, it will either cipher the information on the target’s computer or avoid the device from operating in an appropriate way – while likewise putting a ransom note that states the demand for the targets to effect the settlement for the purpose of decrypting the papers or restoring the file system back to the initial condition. In the majority of instances, the ransom money note will certainly come up when the client reboots the COMPUTER after the system has currently been harmed.

MSIL/Small.FN circulation channels.

In numerous edges of the world, MSIL/Small.FN grows by leaps as well as bounds. However, the ransom money notes as well as techniques of obtaining the ransom amount might differ depending on particular regional (regional) setups. The ransom money notes and also tricks of obtaining the ransom amount may differ depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software application.

    In particular locations, the Trojans often wrongfully report having actually spotted some unlicensed applications allowed on the sufferer’s tool. The alert after that demands the user to pay the ransom money.

    Faulty declarations about prohibited content.

    In countries where software program piracy is less preferred, this technique is not as reliable for the cyber fraudulences. Alternatively, the MSIL/Small.FN popup alert may wrongly assert to be originating from a police institution as well as will report having located kid pornography or various other prohibited data on the device.

    MSIL/Small.FN popup alert may wrongly claim to be acquiring from a law enforcement organization as well as will report having located kid pornography or various other illegal information on the gadget. The alert will in a similar way consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 9152A42B
md5: cbeccfbe349058655f60a068a534b331
name: CBECCFBE349058655F60A068A534B331.mlw
sha1: 88d9363c3971c6c1ad1566c7a90f4a0b2cae0f43
sha256: 75860e1a7af6bbaecdf5ff832dc587013e0bd7283f4c3da2cd1f6617185637af
sha512: e604269b9310103fd178e003ed1bad42651e813d1dc0e7663e953e118dd870c0d3658e760063115fbd0d2fe73370adc383e56d8ab0f600b858ab7aeccb8cbac7
ssdeep: 1536:R+1UzOgVQ5B6umOP5Wza7iwUe4S1m97zQLwo9iElQ:R+lgW5B6umOP5Wu7we4S1m978lQ
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 McAfee 2012
Assembly Version:
InternalName: Worm.exe
CompanyName: McAfee
Comments: McAfee Security Shield
ProductName: McAfee
FileDescription: McAfee Security Shield
OriginalFilename: Worm.exe

MSIL/Small.FN also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 700000121 )
DrWeb Trojan.MulDrop7.45426
ALYac Gen:Variant.MSILPerseus.179944
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Alibaba Trojan:MSIL/PornoAsset.1e43151a
K7GW Trojan ( 700000121 )
Cybereason malicious.e34905
Symantec Trojan.Gen
ESET-NOD32 a variant of MSIL/Small.FN
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Gen:Variant.MSILPerseus.179944
NANO-Antivirus Trojan.Win32.Drop.eumtdp
MicroWorld-eScan Gen:Variant.MSILPerseus.179944
Tencent Win32.Trojan.Pornoasset.Tcwa
Ad-Aware Gen:Variant.MSILPerseus.179944
Sophos Generic ML PUA (PUA)
BitDefenderTheta Gen:NN.ZemsilF.34722.fm0@aqK1Q7i
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Variant.MSILPerseus.179944 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.ckhzp
Avira TR/PornoAsset.ivjfi
Antiy-AVL Trojan/Generic.ASMalwS.2631A51
Microsoft TrojanSpy:Win32/Aicat.A!ml
Arcabit Trojan.MSILPerseus.D2BEE8
AegisLab Trojan.Win32.Generic.j!c
GData Gen:Variant.MSILPerseus.179944
McAfee Artemis!CBECCFBE3490
MAX malware (ai score=97)
VBA32 Trojan.MSIL.gen.15
Ikarus Win32.SuspectCrc
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Fareit.A
AVG Win32:Malware-gen

How to remove MSIL/Small.FN 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/Small.FN 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.FN 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

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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