Written by Robert Bailey

What is MSIL/Rozena.CO infection?

In this post you will find about the definition of MSIL/Rozena.CO and also its unfavorable impact on your computer system. Such ransomware are a kind of malware that is specified by on the internet scams to demand paying the ransom by a victim.

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It is better to prevent, than repair and repent!

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 instances, MSIL/Rozena.CO infection will advise its sufferers to start funds transfer for the objective of neutralizing the amendments that the Trojan infection has actually introduced to the target’s device.

MSIL/Rozena.CO Summary

These alterations can be as complies with:

  • Anomalous binary characteristics;
  • Ciphering the papers found on the victim’s hard disk — so the victim can no more utilize the data;
  • Preventing routine accessibility to the victim’s workstation;


One of the most normal networks whereby MSIL/Rozena.CO are infused are:

  • By ways of phishing emails;
  • As a repercussion of individual winding up on a resource that organizes a malicious software;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s computer or prevent the gadget from working in a proper fashion – while also positioning a ransom money note that states the requirement for the sufferers to effect the repayment for the purpose of decrypting the files or recovering the documents system back to the preliminary problem. In a lot of circumstances, the ransom note will turn up when the customer reboots the PC after the system has actually currently been damaged.

MSIL/Rozena.CO distribution channels.

In numerous edges of the globe, MSIL/Rozena.CO grows by leaps as well as bounds. Nevertheless, the ransom money notes as well as tricks of extorting the ransom amount might vary relying on particular local (local) setups. The ransom money notes and techniques of obtaining the ransom money amount might differ depending on particular local (regional) settings.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In particular areas, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the victim’s device. The alert after that requires the individual to pay the ransom.

    Faulty statements about illegal material.

    In countries where software piracy is much less prominent, this technique is not as reliable for the cyber frauds. Conversely, the MSIL/Rozena.CO popup alert may falsely claim to be stemming from a law enforcement institution and also will certainly report having situated child pornography or various other illegal data on the tool.

    MSIL/Rozena.CO popup alert may wrongly declare to be obtaining from a law enforcement organization and will report having situated youngster porn or other unlawful information on the gadget. The alert will similarly have a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: CCF21FE0
md5: 8e9e6fa7ffab06aa86a508e45ee09414
name: 8E9E6FA7FFAB06AA86A508E45EE09414.mlw
sha1: 429d3200ef61d0deea4e3af6c974e6eb9b869ed1
sha256: 38e6012f6005fdad8eeebdd9f3da6e703ced4ed7e0207710d70fd437a0faefd0
sha512: af0f5bdefe4e45daa10a7a0ccbbc72a839b5c0a54de8d893eee904185e5a369216622fd05dcc88f6c9fdb4a6143518250967357467102a215abe703a4e379983
ssdeep: 96:1IBkl4EZ07EwVbHi97qhRNFCDDlTrzNt:WBkuEm7JVHi9oRNFCtTt
type: PE32+ executable (console) x86-64 Mono/.Net assembly, for MS Windows

Version Info:

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

MSIL/Rozena.CO also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0057918d1 )
Cynet Malicious (score: 100)
ALYac Gen:Variant.Bulz.527316
Cylance Unsafe
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Trojan:Win64/Meterpreter.28d0917c
K7GW Trojan ( 0057918d1 )
Symantec Ransom.Hermes!gen2
ESET-NOD32 a variant of MSIL/Rozena.CO
APEX Malicious
Avast Win64:Trojan-gen
Kaspersky Trojan.Win32.Shelma.blga
BitDefender Gen:Variant.Bulz.527316
MicroWorld-eScan Gen:Variant.Bulz.527316
Ad-Aware Gen:Variant.Bulz.527316
Sophos Mal/Generic-S
TrendMicro TROJ_GEN.R002C0DGB21
McAfee-GW-Edition Artemis!Trojan
FireEye Gen:Variant.Bulz.527316
Emsisoft Gen:Variant.Bulz.527316 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Malware.Gen
Avira HEUR/AGEN.1141009
Microsoft Trojan:Win64/Meterpreter.D
GData Gen:Variant.Bulz.527316
McAfee Artemis!8E9E6FA7FFAB
MAX malware (ai score=82)
TrendMicro-HouseCall TROJ_GEN.R002C0DGB21
Ikarus Trojan.MSIL.Rozena
Fortinet MSIL/Rozena.N!tr
AVG Win64:Trojan-gen
Qihoo-360 Win64/HackTool.Meterpreter.HgEASYQA

How to remove MSIL/Rozena.CO 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/Rozena.CO 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/Rozena.CO 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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