Written by Robert Bailey

What is Ransom:MSIL/Penta.A!MTB infection?

In this short article you will certainly discover about the definition of Ransom:MSIL/Penta.A!MTB and its negative impact on your computer system. Such ransomware are a type of malware that is clarified by on-line scams to demand paying the ransom money by a sufferer.

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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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Most of the cases, Ransom:MSIL/Penta.A!MTB ransomware will instruct its targets to initiate funds transfer for the objective of neutralizing the changes that the Trojan infection has actually introduced to the target’s device.

Ransom:MSIL/Penta.A!MTB Summary

These modifications can be as adheres to:

  • Network activity detected but not expressed in API logs;
  • Ciphering the files situated on the sufferer’s hard disk — so the victim can no longer use the data;
  • Preventing normal access to the sufferer’s workstation;


The most regular channels where Ransom:MSIL/Penta.A!MTB Ransomware are injected are:

  • By means of phishing e-mails;
  • As a repercussion of user winding up on a resource that hosts a malicious software program;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s PC or prevent the gadget from operating in an appropriate way – while also positioning a ransom money note that mentions the demand for the victims to effect the settlement for the purpose of decrypting the files or recovering the file system back to the preliminary problem. In a lot of instances, the ransom money note will come up when the customer reboots the COMPUTER after the system has already been damaged.

Ransom:MSIL/Penta.A!MTB distribution channels.

In numerous edges of the world, Ransom:MSIL/Penta.A!MTB expands by leaps and also bounds. However, the ransom notes and methods of obtaining the ransom money quantity might vary depending on particular neighborhood (regional) setups. The ransom money notes and also techniques of obtaining the ransom amount might differ depending on certain regional (local) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In particular locations, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the sufferer’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations concerning unlawful web content.

    In nations where software program piracy is much less prominent, this approach is not as reliable for the cyber scams. Conversely, the Ransom:MSIL/Penta.A!MTB popup alert might falsely claim to be stemming from a police institution and will certainly report having situated child pornography or other prohibited information on the tool.

    Ransom:MSIL/Penta.A!MTB popup alert might falsely declare to be obtaining from a law enforcement establishment and will certainly report having situated kid porn or other unlawful data on the tool. The alert will likewise include a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 4D03E40A
md5: 81f5893f673b81ed4a271634c899aed2
name: 81F5893F673B81ED4A271634C899AED2.mlw
sha1: 7ccd3b7434b908f060a56f90594fc3d46252113b
sha256: c230758a0b4389848b032ca8ef0fec581763c0ba51f49ff267d39ade19366ffd
sha512: 3a5350743d757e805d46a7d965032e24793cbe0a82e0c4b83ccc3de3ab9aab509faa8a66c3d44ccb53b76cba36d40f1c9eb8f7ad1325a2f244ec11e661cd636d
ssdeep: 768:Ln3kIsp+L5hSIr9ix4mZryx7L2ksQ1QC/KeX:z3kI3hSIr9ixsx32XK/HX
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

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

Ransom:MSIL/Penta.A!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb Trojan.ClipBankerNET.7
ClamAV Win.Ransomware.Hydracrypt-9878672-0
ALYac Trojan.Ransom.Filecoder
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Cyren W32/Azorult.D.gen!Eldorado
ESET-NOD32 a variant of MSIL/Filecoder.AJE
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan-Ransom.MSIL.Agent.gen
BitDefender Generic.Ransom.HydraCrypt.3D8ED839
MicroWorld-eScan Generic.Ransom.HydraCrypt.3D8ED839
Ad-Aware Generic.Ransom.HydraCrypt.3D8ED839
Sophos ML/PE-A + Mal/Genasom-A
BitDefenderTheta Gen:NN.ZemsilF.34142.dm0@aGaEVzh
McAfee-GW-Edition GenericRXPW-PH!81F5893F673B
FireEye Generic.mg.81f5893f673b81ed
Emsisoft Trojan-Ransom.Penta (A)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1138919
eGambit Unsafe.AI_Score_97%
Microsoft Ransom:MSIL/Penta.A!MTB
Arcabit Generic.Ransom.HydraCrypt.3D8ED839
ZoneAlarm HEUR:Trojan-Ransom.MSIL.Agent.gen
GData MSIL.Trojan-Ransom.Remind.B
AhnLab-V3 Ransomware/Win.FTD.C4580180
McAfee GenericRXPW-PH!81F5893F673B
MAX malware (ai score=85)
Malwarebytes Ransom.FileCryptor
Rising Ransom.Destructor!1.B060 (CLASSIC)
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Filecoder.AGP!tr.ransom
AVG Win32:RansomX-gen [Ransom]

How to remove Ransom:MSIL/Penta.A!MTB 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 Ransom:MSIL/Penta.A!MTB 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 Ransom:MSIL/Penta.A!MTB you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://gridinsoft.com/products/

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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