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

What is BAT/BadJoke.H infection?

In this article you will find about the definition of BAT/BadJoke.H and its negative effect on your computer system. Such ransomware are a kind of malware that is specified by on the internet frauds to demand paying the ransom money by a target.

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In the majority of the situations, BAT/BadJoke.H ransomware will certainly instruct its targets to launch funds transfer for the function of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s device.

BAT/BadJoke.H Summary

These alterations can be as complies with:

  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the victim’s hard disk — so the victim can no longer utilize the information;
  • Preventing regular 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 normal channels through which BAT/BadJoke.H Ransomware are infused are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that holds a destructive software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the victim’s computer or stop the gadget from operating in a proper manner – while additionally placing a ransom note that discusses the requirement for the targets to effect the settlement for the objective of decrypting the records or restoring the data system back to the initial condition. In the majority of instances, the ransom note will turn up when the customer reboots the COMPUTER after the system has actually already been damaged.

BAT/BadJoke.H distribution networks.

In various edges of the world, BAT/BadJoke.H expands by jumps as well as bounds. However, the ransom notes and also techniques of obtaining the ransom amount might vary relying on certain local (regional) setups. The ransom money notes as well as techniques of obtaining the ransom money quantity may differ depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software application.

    In specific areas, the Trojans usually wrongfully report having actually detected some unlicensed applications made it possible for on the sufferer’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations about prohibited web content.

    In countries where software piracy is much less popular, this method is not as efficient for the cyber fraudulences. Additionally, the BAT/BadJoke.H popup alert may wrongly claim to be stemming from a police organization and also will report having located youngster porn or other unlawful data on the tool.

    BAT/BadJoke.H popup alert might wrongly declare to be deriving from a legislation enforcement organization and also will report having located kid pornography or various other unlawful information on the tool. The alert will similarly have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 1E52C38A
md5: 6f249ff71cd4059ef84eed5e4bed4e65
name: 6F249FF71CD4059EF84EED5E4BED4E65.mlw
sha1: bc347f408f7bad481b9e235a3b3dc13089023bc4
sha256: 92ea4b3e562112caa8cff77ab6bccea2049d1a8d85970080e04a1af65c3aa972
sha512: fece7804fb816b7e1d726f046b8dc0b39b593bcf422b3b97c0937bc5fa548e2fc91640579f4c2bddf6b5e9f31bbbca7c365d16470a950a7ada7a70be253decc0
ssdeep: 1536:jD7ftfkS5g9YOms+gZcQipICdXkNDqLLZX9lItVGL++eIOlnToIfbwKUGJOH:jfFfHgTWmCRkGbKGLeNTBfbBUGO
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

LegalCopyright: 666
InternalName: 666
FileVersion: 666
CompanyName: 666
PrivateBuild: 666
LegalTrademarks: 666
Comments: 666
ProductName: 666
SpecialBuild: 666
ProductVersion: 666
FileDescription: 666
OriginalFilename: 666
Translation: 0x0000 0x04e4

BAT/BadJoke.H also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0052419b1 )
Cynet Malicious (score: 100)
ALYac Gen:Variant.Ursu.5996
Cylance Unsafe
BitDefender Gen:Variant.Ursu.5996
K7GW Trojan ( 0052419b1 )
Cybereason malicious.71cd40
Cyren W32/SchoolBoy.B.gen!Eldorado
Symantec ML.Attribute.HighConfidence
MicroWorld-eScan Gen:Variant.Ursu.5996
Ad-Aware Gen:Variant.Ursu.5996
Sophos ML/PE-A
BitDefenderTheta Gen:NN.ZexaF.34686.fu0@a8zjQne
McAfee-GW-Edition BehavesLike.Win32.Generic.nh
Emsisoft Gen:Variant.Ursu.5996 (B)
Arcabit Trojan.Ursu.D176C
GData Win32.Trojan.PSE.1JRUNAH
TACHYON Ransom/W32.FileCoder.92672
MAX malware (ai score=84)
Rising Malware.Heuristic!ET#98% (RDMK:cmRtazoBM+dhQV+1igDozI3Fv6bC)
Ikarus Trojan.PowerShell.Crypt
MaxSecure Trojan.Malware.300983.susgen

How to remove BAT/BadJoke.H virus?

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 BAT/BadJoke.H 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 BAT/BadJoke.H you can always ask me in the comments for getting help.

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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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