What is MSIL/Rozena.B infection?

In this article you will find regarding the interpretation of MSIL/Rozena.B and its unfavorable impact on your computer system. Such ransomware are a form of malware that is clarified by on-line frauds to demand paying the ransom by a sufferer.

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Most of the situations, MSIL/Rozena.B virus will certainly advise its targets to initiate funds move for the function of reducing the effects of the amendments that the Trojan infection has presented to the victim’s device.

MSIL/Rozena.B Summary

These modifications can be as adheres to:

  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the victim’s hard disk — so the target can no more use the information;
  • Preventing normal access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most regular networks through which MSIL/Rozena.B Ransomware are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of individual ending up on a resource that organizes a destructive software;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s computer or prevent the tool from working in an appropriate manner – while also placing a ransom note that discusses the need for the targets to effect the settlement for the function of decrypting the records or restoring the documents system back to the first condition. In the majority of circumstances, the ransom money note will turn up when the customer reboots the COMPUTER after the system has currently been harmed.

MSIL/Rozena.B circulation networks.

In various corners of the world, MSIL/Rozena.B expands by leaps as well as bounds. Nevertheless, the ransom money notes as well as tricks of extorting the ransom amount may vary depending on particular local (local) setups. The ransom notes as well as techniques of obtaining the ransom money amount may vary depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the target’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations concerning illegal web content.

    In nations where software piracy is less prominent, this approach is not as effective for the cyber fraudulences. Alternatively, the MSIL/Rozena.B popup alert might incorrectly declare to be deriving from a police organization as well as will report having located kid pornography or various other unlawful data on the tool.

    MSIL/Rozena.B popup alert might incorrectly claim to be deriving from a regulation enforcement institution as well as will report having located child porn or various other unlawful data on the tool. The alert will in a similar way contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 97BC42A2
md5: df49e1ade46a1b60d67361e3f2e1b22e
name: DF49E1ADE46A1B60D67361E3F2E1B22E.mlw
sha1: a85450f8e8bd0953f2a4d2554f9428fcf1aecfcd
sha256: 6f1931e3ee21f0bc847242abb0a62c08c46993b4de4bfc363478c1a2cf324a5c
sha512: 466445ccb2e9847c96c6a891f7366b61c184f6cd826942bbd6df397dfa75c1cf3184e30ab73a455b4ca756921b4ab06375b065e8cf040ced321c249a99fb7adb
ssdeep: 96:UhKp2y6fnMMXzobCvSzPvbep9avwN0lUqlmKQJvyyetZRgEgKVmnMPwSrUx4kgG:M0MXz/IXip9avPJcRIT+Ksx8GuL2Ii
type: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
Assembly Version:
InternalName: aaaa.exe
OriginalFilename: aaaa.exe

MSIL/Rozena.B also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00506efd1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.GenericKD.45992221
Cylance Unsafe
Zillya Trojan.Rozena.Win32.116647
Sangfor Trojan.Win32.Save.a
Alibaba Trojan:MSIL/Rozena.01d22cb3
K7GW Trojan ( 00506efd1 )
Cybereason malicious.de46a1
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Rozena.B.gen
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan.MSIL.Shelma.gen
BitDefender Trojan.GenericKD.45992221
MicroWorld-eScan Trojan.GenericKD.45992221
Tencent Msil.Trojan.Shelma.Wtnl
Ad-Aware Trojan.GenericKD.45992221
Sophos Mal/Generic-S
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition RDN/Generic.rp
Emsisoft Trojan.GenericKD.45992221 (B)
Avira TR/AD.Swrort.hvnok
Microsoft Trojan:Win32/Tiggre!rfn
Arcabit Trojan.Generic.D2BDC91D
AegisLab Trojan.MSIL.Shelma.4!c
GData Trojan.GenericKD.45992221
AhnLab-V3 Malware/Gen.RL_Reputation.C4347736
McAfee RDN/Generic.rp
MAX malware (ai score=81)
Malwarebytes Trojan.CobaltStrike
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R03FC0PD121
Rising Trojan.Rozena!8.6D (CLOUD)
Yandex Trojan.Shelma!uoDQxOqK4AI
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Shelma.B!tr
AVG Win32:Trojan-gen
Qihoo-360 Win32/Ransom.DogHousePower.HgIASRsA

How to remove MSIL/Rozena.B 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.B 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/Rozena.B you can always ask me in the comments for getting help.

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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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