MSIL/Kryptik.IYI

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

What is MSIL/Kryptik.IYI infection?

In this post you will certainly locate regarding the meaning of MSIL/Kryptik.IYI and its negative impact on your computer. Such ransomware are a form 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.IYI ransomware will instruct its victims to initiate funds transfer for the objective of counteracting the amendments that the Trojan infection has presented to the target’s gadget.

MSIL/Kryptik.IYI 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.
  • A process attempted to delay the analysis task.;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Starts servers listening on 127.0.0.1:0;
  • 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.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Exhibits behavior characteristic of Nanocore RAT;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the victim’s hard disk drive — so the sufferer can no more make use of the information;
  • Preventing regular accessibility to the target’s workstation;

MSIL/Kryptik.IYI

One of the most typical networks whereby MSIL/Kryptik.IYI Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a source that hosts a harmful software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from functioning in a correct way – while additionally putting a ransom note that points out the demand for the victims to effect the repayment for the purpose of decrypting the papers or recovering the file system back to the first condition. In the majority of circumstances, the ransom note will certainly show up when the client restarts the PC after the system has actually currently been damaged.

MSIL/Kryptik.IYI distribution networks.

In different edges of the world, MSIL/Kryptik.IYI expands by jumps and bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom money amount might vary depending upon specific neighborhood (regional) setups. The ransom money notes and also methods of obtaining the ransom money amount may vary depending on specific neighborhood (local) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications allowed on the target’s tool. The sharp then demands the individual to pay the ransom money.

    Faulty statements concerning prohibited material.

    In countries where software program piracy is less preferred, this technique is not as reliable for the cyber scams. Conversely, the MSIL/Kryptik.IYI popup alert may falsely assert to be stemming from a law enforcement organization as well as will report having situated kid porn or other unlawful information on the device.

    MSIL/Kryptik.IYI popup alert may incorrectly declare to be obtaining from a law enforcement organization as well as will report having located kid pornography or various other illegal information on the gadget. The alert will likewise have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 9640F1EB
md5: 5c25fa1d83cb315c7f404e2ecd002f14
name: 5C25FA1D83CB315C7F404E2ECD002F14.mlw
sha1: 34d1e3e538b9e18a045e26318fb742cfef001470
sha256: 727feca3e4793c8083d96e1e3e435a880b4991f838648472515cca93f78c9ff8
sha512: 95054b4a6d6711b98e631cf4d0febe4259c7ff663b3385351aa965c0ab98050938e95f4c89b0963f34e0bc78256ac903212e2c8d853aa3577cbba865f43a4040
ssdeep: 24576:aTIdxW6BKaSkdJes6XiruDiz38Ju9KDA6gMHDw3DyzdyD4Lc2Nrf6u0o6v1EMxc:PHdJes6YPzsJuqDw+Qk6v1EMc
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2007
InternalName: Steam Application launcher
FileVersion: 1, 0, 0, 1
CompanyName: Valve Corporation
Comments: Steam Application launcher
ProductName: Steam Application launcher
ProductVersion: 1, 0, 0, 1
FileDescription: Steam Application launcher
OriginalFilename: appid_0000.exe
Translation: 0x0409 0x04b0

MSIL/Kryptik.IYI also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb Trojan.Siggen7.19547
Cynet Malicious (score: 100)
ALYac Gen:Variant.Razy.757658
Cylance Unsafe
Zillya Trojan.Blocker.Win32.37878
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:MSIL/Kryptik.de62d628
K7GW Trojan ( 700000121 )
K7AntiVirus Trojan ( 700000121 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.IYI
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.757658
MicroWorld-eScan Gen:Variant.Razy.757658
Tencent Malware.Win32.Gencirc.10bb50d8
Ad-Aware Gen:Variant.Razy.757658
Sophos Mal/Generic-S
Comodo Malware@#2bj8299i1j0m5
BitDefenderTheta Gen:NN.ZemsilF.34670.Dn0@aicktVf
VIPRE Trojan.Win32.Generic!BT
TrendMicro RANSOM_CRYPBLOCKER_GD28001A.UVPM
McAfee-GW-Edition GenericRXBJ-RN!5C25FA1D83CB
FireEye Generic.mg.5c25fa1d83cb315c
Emsisoft Gen:Variant.Razy.757658 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Blocker.gvn
Avira HEUR/AGEN.1120515
eGambit Unsafe.AI_Score_96%
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Microsoft Trojan:Win32/Skeeyah.A!rfn
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Variant.Razy.757658
AhnLab-V3 Trojan/Win32.Blocker.C2014255
McAfee GenericRXBJ-RN!5C25FA1D83CB
MAX malware (ai score=82)
VBA32 TScope.Trojan.MSIL
Malwarebytes Malware.AI.1846047567
Panda Trj/GdSda.A
TrendMicro-HouseCall RANSOM_CRYPBLOCKER_GD28001A.UVPM
Rising Ransom.Blocker!8.12A (C64:YzY0OiaAV9/BimmT)
Ikarus Trojan.MSIL.Krypt
MaxSecure Win.MxResIcn.Heur.Gen
Fortinet MSIL/Generic.AP.C3FA0!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HgIASOUA

How to remove MSIL/Kryptik.IYI 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.IYI 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.IYI 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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