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

What is MSIL/TrojanDownloader.Small.CJZ infection?

In this article you will find about the meaning of MSIL/TrojanDownloader.Small.CJZ and its adverse effect on your computer. Such ransomware are a form of malware that is specified by on-line scams to demand paying the ransom by a sufferer.

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In the majority of the instances, MSIL/TrojanDownloader.Small.CJZ ransomware will certainly instruct its targets to initiate funds move for the objective of counteracting the modifications that the Trojan infection has presented to the sufferer’s gadget.

MSIL/TrojanDownloader.Small.CJZ Summary

These modifications can be as follows:

  • Presents an Authenticode digital signature;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the files situated on the target’s hard drive — so the target can no longer use the information;
  • Preventing regular access to the target’s workstation;

Related domains:



One of the most normal channels through which MSIL/TrojanDownloader.Small.CJZ Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual winding up on a resource that hosts a malicious software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the information on the victim’s PC or avoid the gadget from operating in an appropriate way – while additionally positioning a ransom note that mentions the demand for the sufferers to effect the settlement for the purpose of decrypting the records or recovering the data system back to the initial problem. In the majority of instances, the ransom money note will come up when the client restarts the PC after the system has actually currently been damaged.

MSIL/TrojanDownloader.Small.CJZ circulation channels.

In numerous corners of the world, MSIL/TrojanDownloader.Small.CJZ grows by jumps and also bounds. However, the ransom money notes as well as tricks of extorting the ransom amount might differ depending on particular regional (regional) settings. The ransom notes as well as tricks of obtaining the ransom quantity might differ depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s tool. The alert then requires the customer to pay the ransom money.

    Faulty declarations regarding illegal material.

    In countries where software program piracy is much less popular, this technique is not as reliable for the cyber fraudulences. Additionally, the MSIL/TrojanDownloader.Small.CJZ popup alert may incorrectly declare to be stemming from a law enforcement organization and also will report having situated kid pornography or various other prohibited data on the gadget.

    MSIL/TrojanDownloader.Small.CJZ popup alert might falsely declare to be deriving from a regulation enforcement establishment and also will report having located youngster pornography or various other prohibited information on the gadget. The alert will likewise have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: A16E6C5F
md5: f40cf629a57042d704c65ef6e9378010
name: F40CF629A57042D704C65EF6E9378010.mlw
sha1: bc828032b04f859f9c5819ffb65fd15c2a824215
sha256: 8bb1d720783098b17c68a073a147177089f992ecfbf43eedee78fab2abedf7b9
sha512: 0dcd2dc481754b2fe3f0213715406278a47744a6949081a1ef2aadbba039e352c17f53e354241b7d519c728284bf63e1c8474174f7dce901d9b8e8042ef00f8d
ssdeep: 768:nDWGdFaEyVkpULeigM81g8l5hpMEPRT4S1yhHkdhI7MhM7Q7phKhGhihRhbhRhAX:Z+8NT/xPZD4BAuoWklsAgHBrr7IRRpPN
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
Assembly Version: 10.0.18362.1
InternalName: winlibs.exe
FileVersion: 10.0.18362.1
CompanyName: xa9 Microsoft Corporation
LegalTrademarks: xa9 Microsoft Corporation
Comments: COM Surrogate
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 10.0.18362.1
FileDescription: COM Surrogate
OriginalFilename: winlibs.exe

MSIL/TrojanDownloader.Small.CJZ also known as:

K7AntiVirusTrojan-Downloader ( 0057ff8f1 )
CynetMalicious (score: 100)
CrowdStrikewin/malicious_confidence_100% (W)
K7GWTrojan-Downloader ( 0057ff8f1 )
ESET-NOD32a variant of MSIL/TrojanDownloader.Small.CJZ
McAfee-GW-EditionRDN/Generic Downloader.x
EmsisoftGen:Heur.Variadic.A.167.1 (B)
SentinelOneStatic AI – Malicious PE
McAfeeRDN/Generic Downloader.x
MAXmalware (ai score=89)

How to remove MSIL/TrojanDownloader.Small.CJZ virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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/TrojanDownloader.Small.CJZ 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:

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If the guide doesn’t help you to remove MSIL/TrojanDownloader.Small.CJZ 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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