MSIL/Kryptik.LEW

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

What is MSIL/Kryptik.LEW infection?

In this post you will certainly discover about the definition of MSIL/Kryptik.LEW as well as its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by on-line frauds to require paying the ransom by a target.

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Most of the cases, MSIL/Kryptik.LEW virus will advise its sufferers to initiate funds transfer for the function of counteracting the amendments that the Trojan infection has actually presented to the target’s device.

MSIL/Kryptik.LEW 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Creates a copy of itself;
  • Ciphering the papers situated on the target’s hard drive — so the victim can no longer utilize 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
z.whorecord.xyzTrojan-Ransom.Win32.Blocker.khkd
a.tomx.xyzTrojan-Ransom.Win32.Blocker.khkd
kakobik.linkpc.netTrojan-Ransom.Win32.Blocker.khkd

MSIL/Kryptik.LEW

One of the most regular channels whereby MSIL/Kryptik.LEW Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of user ending up on a resource that holds a destructive software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s computer or stop the gadget from functioning in an appropriate manner – while also putting a ransom note that mentions the requirement for the targets to effect the settlement for the function of decrypting the documents or restoring the documents system back to the initial condition. In the majority of circumstances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has actually already been harmed.

MSIL/Kryptik.LEW circulation channels.

In various corners of the globe, MSIL/Kryptik.LEW expands by leaps and bounds. Nevertheless, the ransom money notes and also techniques of obtaining the ransom amount may differ relying on certain neighborhood (regional) setups. The ransom notes and techniques of extorting the ransom money amount might differ depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software program.

    In specific locations, the Trojans usually wrongfully report having found some unlicensed applications allowed on the sufferer’s tool. The sharp after that requires the user to pay the ransom money.

    Faulty statements concerning prohibited material.

    In countries where software application piracy is less prominent, this method is not as reliable for the cyber frauds. Conversely, the MSIL/Kryptik.LEW popup alert might falsely declare to be originating from a law enforcement institution as well as will certainly report having situated child porn or various other illegal information on the device.

    MSIL/Kryptik.LEW popup alert may wrongly declare to be obtaining from a regulation enforcement organization and will report having located child pornography or various other prohibited information on the device. The alert will in a similar way include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 73B1D292
md5: 7a6ecf07520d329f772bae1c59b72b48
name: 7A6ECF07520D329F772BAE1C59B72B48.mlw
sha1: 5f9f13d19154e6584d9384711ef6efad882082b5
sha256: 49c784d97c14d6cb15fc634e86075bebe147a37fc4d1a25a5fad17d7f9640733
sha512: 524ab4762c0c6a08c675a9afdaea7d5b5773b464da164c6b0f411ead46bfbfa4e149084c7424ee37a1c0073e4317322fb881ca3fec71ce3c1b5f1fcf11f89e79
ssdeep: 6144:9nckXOlg4cuu+Y3BVgi+AwgmQO5scYoSjIs+VgfZXg3lbK6Ag61B07lVh:9qzcBgi9wg45TVt5IrmVh
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright:
Assembly Version: 0.0.0.0
InternalName: r.exe
FileVersion: 0.0.0.0
ProductVersion: 0.0.0.0
FileDescription:
OriginalFilename: r.exe

MSIL/Kryptik.LEW also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 0051a4881 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.38872
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 0051a4881 )
Cybereasonmalicious.7520d3
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Kryptik.LEW
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Blocker.khkd
BitDefenderGen:Heur.MSIL.Bladabindi.1
NANO-AntivirusTrojan.Win32.Blocker.esvsax
MicroWorld-eScanGen:Heur.MSIL.Bladabindi.1
TencentWin32.Trojan.Blocker.Aisk
Ad-AwareGen:Heur.MSIL.Bladabindi.1
SophosMal/Generic-S
ComodoMalware@#ef6onlx3bqqn
BitDefenderThetaGen:NN.ZemsilF.34692.ym0@aC3GZjd
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.fc
FireEyeGeneric.mg.7a6ecf07520d329f
EmsisoftGen:Heur.MSIL.Bladabindi.1 (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Dropper.Gen
Antiy-AVLTrojan/Generic.ASMalwS.21D9C48
MicrosoftBackdoor:Win32/Bladabindi!ml
AegisLabTrojan.Win32.Blocker.j!c
GDataGen:Heur.MSIL.Bladabindi.1
McAfeeArtemis!7A6ECF07520D
MAXmalware (ai score=100)
VBA32Trojan-Ransom.Blocker
MalwarebytesBackdoor.Bladabindi.MSIL
PandaTrj/GdSda.A
RisingRansom.Blocker!8.12A (CLOUD)
YandexTrojan.Agent!EWM+4iQ+eC4
IkarusTrojan.MSIL.CryptoObfuscator
FortinetMSIL/Generic.AP.136668!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove MSIL/Kryptik.LEW 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.LEW 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.LEW you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

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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