MSIL/Rozena.BB

What is MSIL/Rozena.BB infection?

In this post you will certainly locate concerning the meaning of MSIL/Rozena.BB as well as its adverse impact on your computer. Such ransomware are a kind of malware that is elaborated by online fraudulences to demand paying the ransom by a victim.

In the majority of the situations, MSIL/Rozena.BB ransomware will advise its victims to initiate funds transfer for the purpose of neutralizing the changes that the Trojan infection has actually introduced to the victim’s tool.

MSIL/Rozena.BB Summary

These alterations can be as adheres to:

  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s hard disk — so the sufferer can no more use the data;
  • Preventing regular accessibility to the sufferer’s workstation;

MSIL/Rozena.BB

The most typical networks whereby MSIL/Rozena.BB are injected are:

  • By ways of phishing emails;
  • As a consequence of individual ending up on a source that hosts a harmful software program;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s PC or protect against the gadget from working in an appropriate way – while also putting a ransom note that discusses the requirement for the sufferers to impact the settlement for the objective of decrypting the files or restoring the file system back to the first problem. In the majority of circumstances, the ransom money note will come up when the customer restarts the COMPUTER after the system has actually currently been harmed.

MSIL/Rozena.BB circulation channels.

In numerous corners of the globe, MSIL/Rozena.BB expands by jumps as well as bounds. However, the ransom notes as well as methods of obtaining the ransom money amount may differ depending on particular neighborhood (regional) settings. The ransom notes as well as tricks of obtaining the ransom money quantity may vary depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software program.

    In particular areas, the Trojans typically wrongfully report having actually identified some unlicensed applications made it possible for on the target’s tool. The alert then demands the individual to pay the ransom.

    Faulty declarations about prohibited web content.

    In nations where software program piracy is much less preferred, this technique is not as reliable for the cyber frauds. Conversely, the MSIL/Rozena.BB popup alert may wrongly claim to be deriving from a law enforcement establishment and also will report having located child pornography or various other illegal information on the tool.

    MSIL/Rozena.BB popup alert might falsely assert to be acquiring from a regulation enforcement organization as well as will certainly report having situated youngster pornography or various other prohibited information on the device. The alert will in a similar way include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: BB68FB8Dmd5: 21bb12dbe51884d0099c6296efe85ab6name: 21BB12DBE51884D0099C6296EFE85AB6.mlwsha1: b92a8fb55e897cd966291a4cb5f30c50b2479900sha256: eda524a4794e3e60863730c6321662d876db67857fd43d04da78602e5d085a98sha512: 668526d7cfd2341a95899cb19097aa4fc8d7fc3d75324545971979c86b907dc86264a1f08363d34e43e0c2994a2b86b4a161a36ca21f706135cde5d9d7c59b70ssdeep: 384:9jddzUEcCsBJryaa+FUh0U0FthPdvYZJdUgpGGU5thWRJtS:VzzrFfaTkJhrU5thWRJwtype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 0.0.0.0InternalName: shellcode32.exeFileVersion: 0.0.0.0ProductVersion: 0.0.0.0FileDescription: OriginalFilename: shellcode32.exe

MSIL/Rozena.BB also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00568b4e1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
ALYac Gen:Variant.Bulz.188733
Cylance Unsafe
Zillya Trojan.Rozena.Win32.110393
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (W)
Alibaba VirTool:MSIL/Viemlod.bc895cc0
K7GW Trojan ( 00568b4e1 )
Cybereason malicious.be5188
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Rozena.BB
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Kaspersky HEUR:Trojan.MSIL.Shelma.gen
BitDefender Gen:Variant.Bulz.188733
MicroWorld-eScan Gen:Variant.Bulz.188733
Tencent Msil.Trojan.Shelma.Hqlv
Ad-Aware Gen:Variant.Bulz.188733
Sophos ML/PE-A
Comodo Malware@#3423nchjxk2uj
BitDefenderTheta Gen:NN.ZemsilF.34608.bm0@aSGI1ho
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R002C0DLS20
McAfee-GW-Edition GenericRXMT-SI!21BB12DBE518
FireEye Generic.mg.21bb12dbe51884d0
Emsisoft Gen:Variant.Bulz.188733 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1129525
Microsoft VirTool:MSIL/Viemlod.gen!A
GData Gen:Variant.Bulz.188733
AhnLab-V3 Malware/Win32.RL_Generic.C4124468
McAfee GenericRXMT-SI!21BB12DBE518
MAX malware (ai score=83)
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R002C0DLS20
Rising Trojan.Rozena!8.6D (CLOUD)
Ikarus Trojan.MSIL.Rozena
MaxSecure Trojan.Malware.73788019.susgen
Fortinet MSIL/Rozena.P!tr
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.DogHousePower.HwMAPCcA

How to remove MSIL/Rozena.BB 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove MSIL/Rozena.BB you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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