MSIL/BadJoke.YK
Matthew Alvarez
Updated on April 22, 2026
What is MSIL/BadJoke.YK infection?
In this post you will discover about the definition of MSIL/BadJoke.YK and also its unfavorable influence on your computer. Such ransomware are a kind of malware that is elaborated by online frauds to demand paying the ransom by a victim.
In the majority of the cases, MSIL/BadJoke.YK infection will certainly advise its sufferers to launch funds move for the function of neutralizing the changes that the Trojan infection has presented to the sufferer’s device.
MSIL/BadJoke.YK Summary
These alterations can be as follows:
- Network activity detected but not expressed in API logs;
- Anomalous binary characteristics;
- Ciphering the documents found on the victim’s hard drive — so the sufferer can no more make use of the information;
- Preventing normal accessibility to the victim’s workstation;
MSIL/BadJoke.YK
One of the most typical networks whereby MSIL/BadJoke.YK are infused are:
- By methods of phishing emails;
- As an effect of user ending up on a source that holds a harmful software;
As quickly as the Trojan is successfully injected, it will either cipher the information on the sufferer’s PC or stop the tool from functioning in an appropriate way – while additionally placing a ransom note that states the demand for the sufferers to impact the repayment for the objective of decrypting the papers or restoring the file system back to the first condition. In most instances, the ransom note will turn up when the customer restarts the PC after the system has actually currently been harmed.
MSIL/BadJoke.YK distribution networks.
In different corners of the world, MSIL/BadJoke.YK expands by jumps and bounds. Nonetheless, the ransom money notes as well as techniques of extorting the ransom amount might vary depending upon certain local (local) settings. The ransom money notes as well as techniques of extorting the ransom money amount may differ depending on particular local (local) setups.
As an example:
Faulty informs regarding unlicensed software program.
In certain locations, the Trojans usually wrongfully report having actually spotted some unlicensed applications enabled on the victim’s device. The sharp after that demands the customer to pay the ransom.
Faulty declarations concerning prohibited web content.
In countries where software program piracy is less preferred, this technique is not as reliable for the cyber scams. Alternatively, the MSIL/BadJoke.YK popup alert may incorrectly claim to be originating from a police institution and also will certainly report having located child porn or other unlawful data on the gadget.
MSIL/BadJoke.YK popup alert may falsely assert to be obtaining from a regulation enforcement institution and will report having situated child porn or various other prohibited data on the gadget. The alert will in a similar way consist of a demand for the customer to pay the ransom.
Technical details
File Info:
crc32: 6DF99F6Dmd5: 5e5a02445447949a125d5ca19be29dd7name: 5E5A02445447949A125D5CA19BE29DD7.mlwsha1: 6d7787cd6367cbda502727d8699aec31312c5741sha256: 6f9fbed1f59211a0b1d7ed9c08c34e866137184bf8692bbaedd3932db534e6a6sha512: 38ae12d1b3809a6b04baa6220e8f30b611ba530fc6f40c32c4ec63c1c933e819400e06d67615ce36402a67620491b6cfa844089a3d422105041c2cd0f81383f1ssdeep: 192:p16AUa9waTlm70l9IwbK2m5T3ML+9p2nfxNqtIW1YlFHApcip1UvRTMbf4Mw+:pZwaTEKIwTmmLYknfxNqQFHAph8Fqf7type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS WindowsVersion Info:
Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 1.0.0.0InternalName: Virus Prank.exeFileVersion: 1.0.0.0CompanyName: LegalTrademarks: Comments: ProductName: Virus 4 RealProductVersion: 1.0.0.0FileDescription: Virus 4 RealOriginalFilename: Virus Prank.exe
MSIL/BadJoke.YK also known as:
| GridinSoft | Trojan.Ransom.Gen |
| K7AntiVirus | Trojan ( 005805781 ) |
| Lionic | Trojan.Win32.Bulz.4!c |
| Cynet | Malicious (score: 100) |
| ALYac | Gen:Variant.Bulz.584533 |
| Cylance | Unsafe |
| Sangfor | Riskware.Win32.Wacapew.C |
| CrowdStrike | win/malicious_confidence_90% (W) |
| Alibaba | Ransom:MSIL/Foreign.4d22b928 |
| K7GW | Trojan ( 005805781 ) |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of MSIL/BadJoke.YK |
| APEX | Malicious |
| Avast | Win32:Trojan-gen |
| Kaspersky | HEUR:Trojan-Ransom.MSIL.Foreign.gen |
| BitDefender | Gen:Variant.Bulz.584533 |
| MicroWorld-eScan | Gen:Variant.Bulz.584533 |
| Ad-Aware | Gen:Variant.Bulz.584533 |
| Sophos | Mal/Generic-S |
| BitDefenderTheta | Gen:NN.ZemsilF.34058.am0@a4dBy6m |
| TrendMicro | Ransom_Foreign.R011C0PHA21 |
| McAfee-GW-Edition | RDN/Generic.grp |
| FireEye | Gen:Variant.Bulz.584533 |
| Emsisoft | Gen:Variant.Bulz.584533 (B) |
| SentinelOne | Static AI – Malicious PE |
| Avira | TR/BadJoke.irpjq |
| eGambit | Unsafe.AI_Score_99% |
| Microsoft | Backdoor:Win32/Bladabindi!ml |
| GData | Gen:Variant.Bulz.584533 |
| AhnLab-V3 | Trojan/Win.Generic.C4585953 |
| McAfee | RDN/Generic.grp |
| MAX | malware (ai score=80) |
| Malwarebytes | HackTool.Agent |
| Panda | Trj/GdSda.A |
| TrendMicro-HouseCall | Ransom_Foreign.R011C0PHA21 |
| Ikarus | Trojan.MSIL.BadJoke |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | PossibleThreat |
| AVG | Win32:Trojan-gen |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Trojan.Generic.HgIASZ4A |
How to remove MSIL/BadJoke.YK ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for MSIL/BadJoke.YK 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove MSIL/BadJoke.YK you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
