Written by Robert Bailey

What is MSIL/Injector.OPN infection?

In this post you will discover regarding the meaning of MSIL/Injector.OPN and its negative effect on your computer. Such ransomware are a type of malware that is specified by on-line frauds to demand paying the ransom 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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In the majority of the situations, MSIL/Injector.OPN infection will certainly instruct its sufferers to initiate funds move for the function of counteracting the changes that the Trojan infection has actually introduced to the sufferer’s gadget.

MSIL/Injector.OPN Summary

These adjustments can be as adheres to:

  • The binary likely contains encrypted or compressed data.;
  • Network activity detected but not expressed in API logs;
  • Ciphering the records found on the victim’s hard disk drive — so the victim can no longer make use of the information;
  • Preventing routine access to the victim’s workstation;

Related domains: Trojan-Ransom.Win32.Blocker.krzi


The most normal networks through which MSIL/Injector.OPN Trojans are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a source that organizes a harmful software;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or stop the gadget from operating in an appropriate manner – while likewise placing a ransom money note that states the need for the sufferers to impact the payment for the function of decrypting the records or recovering the file system back to the first problem. In a lot of circumstances, the ransom money note will certainly come up when the customer restarts the COMPUTER after the system has actually currently been harmed.

MSIL/Injector.OPN circulation networks.

In various corners of the world, MSIL/Injector.OPN expands by jumps and also bounds. Nonetheless, the ransom money notes as well as methods of extorting the ransom amount might differ depending on specific local (regional) setups. The ransom money notes as well as techniques of extorting the ransom money amount may differ depending on certain regional (regional) setups.

Ransomware injection

For example:

    Faulty informs about unlicensed software.

    In specific locations, the Trojans typically wrongfully report having actually identified some unlicensed applications enabled on the target’s gadget. The alert after that demands the customer to pay the ransom money.

    Faulty statements about illegal material.

    In nations where software application piracy is much less preferred, this technique is not as effective for the cyber scams. Conversely, the MSIL/Injector.OPN popup alert may wrongly assert to be stemming from a law enforcement establishment and also will report having situated child porn or other illegal information on the device.

    MSIL/Injector.OPN popup alert might wrongly declare to be deriving from a regulation enforcement organization and will report having situated child porn or other illegal information on the tool. The alert will likewise have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: FA92A451
md5: 2f0e8dfe9b0f2e607c4353cd85f91fdc
name: 2F0E8DFE9B0F2E607C4353CD85F91FDC.mlw
sha1: a9487221ed13bdc18a387b0aa2d23929beb509ef
sha256: d1ccd629da8e1184ea732b91a68157fe9275566d181507c3713a8f7066eae1e4
sha512: 4ad8411ed2738ed92c579a69460ccd0bc956268931c0765f49676a59ee79d74d3e8c0171e88bb7e3a32a8b57f20a87f1be3f42ee356663832a4b4f9d29305eb3
ssdeep: 1536:dxHp/7PL70HEjDMBJpqHBIyhujG6D5Qha79uhVhu8gYajcDqEI3EHyoaV:dxHZ7PLTjgBJpqHBJu1DChaBuPYjYIp
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 Microsoft 2018
Assembly Version:
InternalName: Microsoft System Windows 64 bit.exe
CompanyName: Microsoft
ProductName: Microsoft System Windows 64 bit
FileDescription: Microsoft System Windows 64 bit
OriginalFilename: Microsoft System Windows 64 bit.exe

MSIL/Injector.OPN also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004e12731 )
Lionic Trojan.Win32.Generic.4!c
DrWeb BackDoor.Siggen.57253
Cynet Malicious (score: 99)
ALYac Trojan.GenericKD.40145888
CrowdStrike win/malicious_confidence_60% (D)
K7GW Trojan ( 004e12731 )
Cybereason malicious.e9b0f2
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Injector.OPN
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.krzi
BitDefender Trojan.GenericKD.40145888
NANO-Antivirus Trojan.Win32.Blocker.eyhkeu
MicroWorld-eScan Trojan.GenericKD.40145888
Tencent Win32.Trojan.Blocker.Hrpm
Ad-Aware Trojan.GenericKD.40145888
Sophos Mal/Generic-S
Comodo Malware@#28eeucr0xsrcx
BitDefenderTheta Gen:NN.ZemsilF.34142.km0@amS6pYf
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
Emsisoft Trojan.GenericKD.40145888 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.MSIL.Gen
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:MSIL/Bladabindi
GData Trojan.GenericKD.40145888
McAfee Artemis!2F0E8DFE9B0F
MAX malware (ai score=87)
Panda Trj/GdSda.A
Yandex Trojan.Blocker!nm71cHkwPV0
Ikarus VirTool.MSIL
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Injector.OPN!tr
AVG Win32:Malware-gen

How to remove MSIL/Injector.OPN 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/Injector.OPN 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/Injector.OPN 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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