Written by Robert Bailey

What is MSIL/Kryptik.YWB infection?

In this article you will certainly discover regarding the definition of MSIL/Kryptik.YWB and also its negative influence on your computer. Such ransomware are a kind of malware that is elaborated by online scams to demand paying the ransom by a target.

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In the majority of the situations, MSIL/Kryptik.YWB ransomware will advise its victims to start funds transfer for the objective of counteracting the amendments that the Trojan infection has presented to the target’s gadget.

MSIL/Kryptik.YWB Summary

These modifications can be as follows:

  • The binary likely contains encrypted or compressed data.;
  • Network activity detected but not expressed in API logs;
  • Ciphering the records situated on the victim’s hard drive — so the sufferer can no longer make use of the information;
  • Preventing routine accessibility to the victim’s workstation;


The most normal channels through which MSIL/Kryptik.YWB Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of customer ending up on a source that holds a harmful software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or stop the gadget from functioning in an appropriate manner – while likewise putting a ransom note that mentions the need for the sufferers to impact the repayment for the function of decrypting the documents or recovering the file system back to the initial problem. In a lot of instances, the ransom note will certainly come up when the client reboots the PC after the system has currently been harmed.

MSIL/Kryptik.YWB distribution channels.

In different edges of the globe, MSIL/Kryptik.YWB grows by leaps as well as bounds. Nevertheless, the ransom notes and tricks of obtaining the ransom money amount may vary relying on certain local (local) setups. The ransom money notes and techniques of obtaining the ransom amount might vary depending on certain neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s device. The sharp then demands the customer to pay the ransom money.

    Faulty declarations about illegal content.

    In nations where software program piracy is less preferred, this method is not as effective for the cyber scams. Conversely, the MSIL/Kryptik.YWB popup alert might falsely declare to be stemming from a law enforcement institution and will report having situated youngster pornography or other illegal information on the tool.

    MSIL/Kryptik.YWB popup alert might wrongly assert to be deriving from a law enforcement establishment and will certainly report having situated kid porn or various other illegal data on the gadget. The alert will in a similar way consist of a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: CA286F88
md5: b5f59cd518097113d94a7f076d4fe846
name: B5F59CD518097113D94A7F076D4FE846.mlw
sha1: 1e062d18a8bbbb676794309dc65726b687fffc3e
sha256: 5e7ab36ec389a4294220c2b5535e8389fcb1acbd09b7a87dbc2e924ee54544b6
sha512: a91e37a838014e006cf2e0d9ee673fb9ee6042ad0d53ed7fbfca6c83ba1efebf648dcae9528bdb52ccfb608533ffe4739513cacded85a7faa9e075a1195a7fcb
ssdeep: 24576:MEx0vSfaVmy1aZPROQubaDUHEw2Rcs+BSC2KVyveMhhST0sDdaA3:M/CaVmhZodWwHEwB4IyveM6T0AdaA
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 x5c0fx91d1x5c0fJin 2019
Assembly Version:
InternalName: ExceptionHandler.exe
CompanyName: x5c0fx91d1x5c0fJin
LegalTrademarks: Copyright xa9 x5c0fx91d1x5c0fJin 2019
Comments: Class Administration Tool 3
ProductName: Class Administration Tool
FileDescription: Class Administration Tool 3
OriginalFilename: ExceptionHandler.exe

MSIL/Kryptik.YWB also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
Qihoo-360 Generic/Backdoor.23a
McAfee Artemis!B5F59CD51809
Cylance Unsafe
SUPERAntiSpyware Trojan.Agent/Gen-Injector
K7GW Trojan ( 005740761 )
Cybereason malicious.8a8bbb
BitDefenderTheta Gen:NN.ZemsilF.34670.gn0@aau!LLb
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.YWB
Kaspersky HEUR:Backdoor.MSIL.Remcos.gen
McAfee-GW-Edition Artemis!Trojan
Sophos Mal/Generic-S
APEX Malicious
Kingsoft Win32.Hack.Undef.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
Gridinsoft Malware.Win32.Gen.vl!i
AegisLab Trojan.MSIL.Remcos.m!c
ZoneAlarm HEUR:Backdoor.MSIL.Remcos.gen
GData MSIL.Trojan-Stealer.AgentTesla.BXPRYO
Cynet Malicious (score: 100)
Malwarebytes Ransom.HiddenTear
Ikarus Win32.SuspectCrc
Fortinet MSIL/GenKryptik.EXQK!tr

How to remove MSIL/Kryptik.YWB virus?

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 MSIL/Kryptik.YWB 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 MSIL/Kryptik.YWB 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

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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