Written by Robert Bailey

What is MSIL/TrojanDownloader.Small.CJY infection?

In this article you will certainly discover about the interpretation of MSIL/TrojanDownloader.Small.CJY and its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom money by a target.

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Most of the situations, MSIL/TrojanDownloader.Small.CJY infection will certainly advise its sufferers to launch funds transfer for the purpose of reducing the effects of the changes that the Trojan infection has introduced to the target’s tool.

MSIL/TrojanDownloader.Small.CJY Summary

These modifications can be as follows:

  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the records located on the victim’s disk drive — so the target can no longer make use of the information;
  • Preventing routine access to the victim’s workstation;


The most typical networks where MSIL/TrojanDownloader.Small.CJY are infused are:

  • By methods of phishing e-mails;
  • As a consequence of user ending up on a source that hosts a malicious software application;

As soon as the Trojan is efficiently infused, it will either cipher the data on the sufferer’s PC or protect against the device from operating in an appropriate manner – while also placing a ransom note that states the need for the victims to impact the settlement for the purpose of decrypting the papers or bring back the file system back to the first problem. In the majority of instances, the ransom note will turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.

MSIL/TrojanDownloader.Small.CJY circulation channels.

In various corners of the globe, MSIL/TrojanDownloader.Small.CJY grows by leaps and also bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom money amount might differ relying on particular regional (local) settings. The ransom money notes as well as techniques of extorting the ransom amount may differ depending on specific neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having found some unlicensed applications made it possible for on the target’s tool. The alert then requires the customer to pay the ransom money.

    Faulty statements concerning prohibited material.

    In countries where software program piracy is much less prominent, this technique is not as effective for the cyber scams. Conversely, the MSIL/TrojanDownloader.Small.CJY popup alert may falsely declare to be deriving from a law enforcement establishment as well as will report having situated child pornography or other prohibited information on the device.

    MSIL/TrojanDownloader.Small.CJY popup alert might incorrectly claim to be acquiring from a regulation enforcement organization and also will certainly report having situated youngster porn or various other unlawful information on the gadget. The alert will similarly contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: E4828CE2
md5: eb064b310c1d0e526a54b0ed99a95a12
name: EB064B310C1D0E526A54B0ED99A95A12.mlw
sha1: 7abd4206b8fed743d265f4b388e7b4a0af0ce077
sha256: 31564bd50713e63a6d4cb749048f7908b5f7629d2ef950b7240f85d734a32ceb
sha512: 7977ac8deddb4df50e87c5e70fc0cf842bb75a6411e615cc253e1d2bfbf2c98c0cec24f66dc8eb797af6e794ca4eda3fb6b504f86cc76174a8d30280ce99ba96
ssdeep: 192:dImJJzuFwG2AAndOTTSaGStyKoxMXJroEr7dzoWJszBp6l+1OFBRNl3fqFaM+D8:dTJzuFjeybXFZ/d8WujkgOFEq
type: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2021
Assembly Version:
InternalName: system.exe
ProductName: ConsoleApplication1
FileDescription: ConsoleApplication1
OriginalFilename: system.exe

MSIL/TrojanDownloader.Small.CJY also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan-Downloader ( 005779c41 )
Elastic malicious (high confidence)
Cynet Malicious (score: 85)
ALYac Trojan.GenericKD.45703453
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:MSIL/Pdfer.3acde8b6
K7GW Trojan-Downloader ( 005779c41 )
Cybereason malicious.6b8fed
Symantec ML.Attribute.HighConfidence
ESET-NOD32 MSIL/TrojanDownloader.Small.CJY
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
Kaspersky HEUR:Trojan.MSIL.Pdfer.gen
BitDefender Trojan.GenericKD.45703453
MicroWorld-eScan Trojan.GenericKD.45703453
Ad-Aware Trojan.GenericKD.45703453
Sophos Mal/Generic-S
F-Secure Trojan.TR/Dropper.MSIL.Gen
BitDefenderTheta Gen:NN.ZemsilF.34804.am0@aKdpLRj
VIPRE Trojan.Win32.Generic.pak!cobra
TrendMicro TROJ_GEN.R002C0GBC21
McAfee-GW-Edition Artemis!Trojan
Emsisoft Trojan.GenericKD.45703453 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.MSIL.Gen
eGambit Unsafe.AI_Score_85%
Microsoft Ransom:Win32/Cobra
Arcabit Trojan.Generic.D2B9611D
AegisLab Trojan.Win32.Malicious.4!c
ZoneAlarm HEUR:Trojan.MSIL.Pdfer.gen
GData Trojan.GenericKD.45703453
AhnLab-V3 Malware/Gen.RL_Reputation.C4331371
McAfee Artemis!EB064B310C1D
MAX malware (ai score=89)
VBA32 Trojan.MSIL.gen.a.10
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R002C0GBC21
Ikarus Trojan.Win32.Refroso
Fortinet MSIL/Small.CJY!tr.dldr
AVG Win32:MalwareX-gen [Trj]

How to remove MSIL/TrojanDownloader.Small.CJY 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.CJY 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/TrojanDownloader.Small.CJY 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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