What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is MSIL/BadJoke.JL infection?

In this article you will find concerning the interpretation of MSIL/BadJoke.JL as well as its adverse impact on your computer system. Such ransomware are a type of malware that is elaborated by on-line scams to demand paying the ransom by a sufferer.

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In the majority of the instances, MSIL/BadJoke.JL infection will advise its victims to start funds transfer for the function of neutralizing the modifications that the Trojan infection has presented to the target’s tool.

MSIL/BadJoke.JL Summary

These alterations can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Sniffs keystrokes;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Ciphering the files situated on the victim’s hard drive — so the sufferer can no longer make use of the information;
  • Preventing normal access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains Trojan-Ransom.Win32.Gen.iry Trojan-Ransom.Win32.Gen.iry


The most regular channels through which MSIL/BadJoke.JL Trojans are infused are:

  • By ways of phishing emails;
  • As an effect of customer ending up on a resource that holds a malicious software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from working in an appropriate way – while likewise putting a ransom note that states the requirement for the victims to effect the payment for the purpose of decrypting the files or recovering the documents system back to the first problem. In a lot of circumstances, the ransom money note will certainly show up when the client restarts the COMPUTER after the system has actually currently been harmed.

MSIL/BadJoke.JL distribution networks.

In various corners of the world, MSIL/BadJoke.JL expands by leaps and bounds. However, the ransom notes as well as techniques of extorting the ransom money quantity might differ depending upon specific regional (local) settings. The ransom money notes as well as tricks of obtaining the ransom quantity may differ depending on particular neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software.

    In specific areas, the Trojans frequently wrongfully report having identified some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that requires the customer to pay the ransom.

    Faulty statements about illegal material.

    In countries where software piracy is much less popular, this method is not as effective for the cyber fraudulences. Conversely, the MSIL/BadJoke.JL popup alert might wrongly declare to be stemming from a law enforcement establishment and also will certainly report having located youngster porn or other prohibited data on the gadget.

    MSIL/BadJoke.JL popup alert may falsely claim to be obtaining from a law enforcement organization and also will report having situated youngster porn or various other unlawful information on the device. The alert will similarly include a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: D565AA16
md5: d193962ed65b4b7af399c901adc1f197
name: D193962ED65B4B7AF399C901ADC1F197.mlw
sha1: 3ce13babd8cc3623b41120e1e0ecb5ec1bff1fd2
sha256: 697db2110bf4e29c98292ae3eb2f6dc386de66b02f857d10ecdaaeb7bc647a1a
sha512: 4a2ab4b96f756e50f8c6fc6d5cbd4e3295bf7c13174c793d3467f2e69621a6d38eff50abe3487ab02c4e95b405fea5d3bb814389ed3f0a715d015bd87e8bcbb5
ssdeep: 6144:n826rDRPJ/GsqTB19CUaEOWlIXEtyewflZ+:n8269h7mnBOWlIUtYm
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2017
Assembly Version:
InternalName: eyb0ss.exe
ProductName: eyb0ss
FileDescription: eyb0ss
OriginalFilename: eyb0ss.exe

MSIL/BadJoke.JL also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 005318c61 )
Cynet Malicious (score: 99)
Sangfor Suspicious.Win32.Johnnie.102906
K7GW Trojan ( 005318c61 )
Cybereason malicious.bd8cc3
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Gen.iry
NANO-Antivirus Trojan.Win32.Razy.fgkpuj
Tencent Win32.Trojan.Gen.Wqcp
Comodo Malware@#3iaxt3udwufua
BitDefenderTheta Gen:NN.ZemsilF.34686.pq0@aCXpxvm
VIPRE Trojan.Win32.Generic!BT
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Gen.ahl
Avira TR/Spy.Gen
eGambit Unsafe.AI_Score_100%
Microsoft Trojan:Win32/Skeeyah.A!bit
AegisLab Trojan.Win32.Generic.j!c
McAfee Artemis!D193962ED65B
MAX malware (ai score=100)
Panda Trj/GdSda.A
Rising Ransom.Gen!8.DE83 (CLOUD)
Yandex Trojan.Gen!b4a/Qc9w6cs
Ikarus Trojan.MSIL.BadJoke
Fortinet MSIL/Generic.AP.A22F920!tr
AVG Win32:Malware-gen

How to remove MSIL/BadJoke.JL ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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/BadJoke.JL 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/BadJoke.JL 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

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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