Written by Robert Bailey

What is MSIL/Kryptik.ZAT infection?

In this article you will certainly discover concerning the interpretation of MSIL/Kryptik.ZAT and its unfavorable effect on your computer. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom money by a target.

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In the majority of the situations, MSIL/Kryptik.ZAT ransomware will advise its sufferers to launch funds move for the objective of reducing the effects of the modifications that the Trojan infection has presented to the sufferer’s tool.

MSIL/Kryptik.ZAT Summary

These alterations can be as adheres to:

  • The binary likely contains encrypted or compressed data.;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the papers located on the target’s hard drive — so the target can no longer use the information;
  • Preventing regular access to the victim’s workstation;

Related domains: Trojan[Ransom]/Win32.Agent Trojan[Ransom]/Win32.Agent


The most normal channels whereby MSIL/Kryptik.ZAT Trojans are injected are:

  • By methods of phishing emails;
  • As an effect of individual winding up on a resource that hosts a malicious software program;

As soon as the Trojan is effectively infused, it will either cipher the data on the target’s computer or protect against the tool from functioning in a correct fashion – while also positioning a ransom money note that mentions the requirement for the sufferers to impact the repayment for the objective of decrypting the papers or bring back the documents system back to the first condition. In the majority of circumstances, the ransom money note will come up when the client restarts the PC after the system has actually already been damaged.

MSIL/Kryptik.ZAT distribution networks.

In numerous edges of the globe, MSIL/Kryptik.ZAT expands by leaps and also bounds. Nonetheless, the ransom money notes as well as tricks of extorting the ransom money amount may vary depending upon certain regional (regional) setups. The ransom money notes as well as techniques of obtaining the ransom money quantity might vary depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software program.

    In certain locations, the Trojans typically wrongfully report having detected some unlicensed applications made it possible for on the target’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty declarations concerning unlawful web content.

    In nations where software piracy is less preferred, this technique is not as effective for the cyber frauds. Conversely, the MSIL/Kryptik.ZAT popup alert may incorrectly declare to be deriving from a law enforcement organization and also will report having situated child pornography or various other illegal information on the device.

    MSIL/Kryptik.ZAT popup alert may incorrectly assert to be deriving from a legislation enforcement establishment as well as will report having situated youngster porn or various other prohibited information on the tool. The alert will likewise include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 07C8847F
md5: bfde3fbf61c9172344ff18be41fbe615
name: BFDE3FBF61C9172344FF18BE41FBE615.mlw
sha1: f932926e3914707df2eb9fddc1ec306667c255c1
sha256: 5eae07014d2273efc7932af2d5cb990732136f48405b0ddf19330be2e6a8eb23
sha512: 86383989eac8310070639271bf252aaa3ab536ddfc37f5d53d401e291fac29a92ff19f471f643d650ec88bfe8a2be69f13e9b9f15736058af3b309af97dd4e08
ssdeep: 6144:WpbtVEZiXCDK4BDgWQ8S7xxHJGlPSO9BOdxZPErPQn2wD2jXy3hXLrPOHA+nweb:WphVnGcWYAlRBcxZMSACxn0nweD
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2020
Assembly Version:
InternalName: x636x987e.exe
CompanyName: Microsoft
ProductName: Class Reborn
FileDescription: Class Reborn
OriginalFilename: x636x987e.exe

MSIL/Kryptik.ZAT also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.45016121
Qihoo-360 Generic/Trojan.21a
ALYac Trojan.GenericKD.45016121
Cylance Unsafe
AegisLab Trojan.Win32.Malicious.4!c
Sangfor Malware
K7AntiVirus Trojan ( 00574b191 )
BitDefender Trojan.GenericKD.45016121
K7GW Trojan ( 00574b191 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta Gen:NN.ZemsilF.34700.zu0@aqJhRrb
Cyren W32/MSIL_Kryptik.CLM.gen!Eldorado
Symantec Trojan.Gen.2
Kaspersky HEUR:Trojan.MSIL.Crypt.gen
Alibaba Trojan:MSIL/Kryptik.a01e0445
ViRobot Trojan.Win32.S.Agent.420864.O
Ad-Aware Trojan.GenericKD.45016121
Emsisoft Trojan.Agent (A)
Comodo Malware@#1hvmnuo7qs8ku
F-Secure Trojan.TR/Dropper.MSIL.mcggb
DrWeb Trojan.PackedNET.405
McAfee-GW-Edition BehavesLike.Win32.Generic.gc
SentinelOne Static AI – Malicious PE
Sophos Mal/Generic-S
APEX Malicious
Webroot W32.Malware.Gen
Avira TR/Dropper.MSIL.mcggb
MAX malware (ai score=80)
Antiy-AVL Trojan[Ransom]/Win32.Agent
Kingsoft Win32.Heur.KVMH008.a.(kcloud)
Microsoft Trojan:Win32/Ymacco.AA5E
Gridinsoft Ransom.Win32.Wacatac.oa
Arcabit Trojan.Generic.D2AEE439
ZoneAlarm HEUR:Trojan.MSIL.Crypt.gen
GData Trojan.GenericKD.45016121
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Kryptik.R357956
Acronis suspicious
McAfee RDN/Generic.dx
Malwarebytes Trojan.Crypt.MSIL
Panda Trj/RnkBend.A
ESET-NOD32 a variant of MSIL/Kryptik.ZAT
Yandex Trojan.AvsArher.bUx2VN
Ikarus Trojan.MSIL.Inject
eGambit Unsafe.AI_Score_81%
Fortinet MSIL/GenKryptik.EYLO!tr
AVG Win32:TrojanX-gen [Trj]
Cybereason malicious.e39147
Avast Win32:TrojanX-gen [Trj]
MaxSecure Trojan.Malware.300983.susgen

How to remove MSIL/Kryptik.ZAT 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 MSIL/Kryptik.ZAT 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.ZAT 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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