MSIL/Kryptik.YDO

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

What is MSIL/Kryptik.YDO infection?

In this post you will certainly find about the definition of MSIL/Kryptik.YDO and its negative impact on your computer. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom by a victim.

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In the majority of the cases, MSIL/Kryptik.YDO ransomware will advise its targets to launch funds transfer for the purpose of reducing the effects of the changes that the Trojan infection has presented to the sufferer’s gadget.

MSIL/Kryptik.YDO Summary

These alterations can be as complies with:

  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the records situated on the victim’s disk drive — so the target can no longer utilize the information;
  • Preventing regular 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.

MSIL/Kryptik.YDO

The most typical channels through which MSIL/Kryptik.YDO Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of customer winding up on a resource that holds a destructive software;

As soon as the Trojan is effectively infused, it will either cipher the data on the victim’s PC or avoid the gadget from operating in a proper manner – while additionally placing a ransom note that mentions the need for the targets to impact the settlement for the function of decrypting the documents or bring back the data system back to the preliminary condition. In most circumstances, the ransom note will certainly show up when the client reboots the PC after the system has actually currently been harmed.

MSIL/Kryptik.YDO distribution networks.

In numerous edges of the world, MSIL/Kryptik.YDO grows by leaps and bounds. However, the ransom notes as well as tricks of extorting the ransom amount may differ depending on specific neighborhood (regional) setups. The ransom notes and techniques of obtaining the ransom quantity might differ depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software program.

    In particular areas, the Trojans usually wrongfully report having actually identified some unlicensed applications allowed on the target’s gadget. The alert after that requires the customer to pay the ransom.

    Faulty declarations regarding illegal web content.

    In nations where software piracy is much less prominent, this method is not as efficient for the cyber scams. Conversely, the MSIL/Kryptik.YDO popup alert may wrongly declare to be deriving from a police establishment and also will report having situated youngster porn or other prohibited information on the gadget.

    MSIL/Kryptik.YDO popup alert might falsely assert to be acquiring from a legislation enforcement institution and also will report having located youngster porn or other illegal information on the tool. The alert will in a similar way have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 2AB863B6
md5: 2132a058a978817e75254482ace91dfb
name: upload_file
sha1: 7230bb3cd85284266a429d0f64fb7cab44710929
sha256: 042e32eb8970e6dd8e767bb75bc25b3325c314783b9c3bb365727584dba4d918
sha512: 3e5a9b0dc8d47aa1ccac320e462c9724746fb03ae20ece0b2e0d0ab3761ce20e4a210a3af1e89e54a5be69a8554055767f1b3125ed58b52a6aa8db1e7d9bb512
ssdeep: 24576:Glrb3Y5lRf8OujxmavUxK48ekyumzJhA:GlrboruOuVmavUU1yVzvA
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2014 Patchi
Assembly Version: 15.0.0.0
InternalName: fx57ce.exe
FileVersion: 15.0.0.0
CompanyName:
LegalTrademarks: Patchi
Comments: Cadbury Gifts Direct.
ProductName: Toblerone
ProductVersion: 15.0.0.0
FileDescription: Toblerone
OriginalFilename: fx57ce.exe

MSIL/Kryptik.YDO also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
FireEye Generic.mg.2132a058a978817e
McAfee RDN/Generic.dx
Cylance Unsafe
K7AntiVirus Trojan ( 00570dcb1 )
K7GW Trojan ( 00570dcb1 )
CrowdStrike win/malicious_confidence_80% (W)
Cyren W32/MSIL_Troj.YY.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Kaspersky UDS:DangerousObject.Multi.Generic
AegisLab Trojan.Multi.Generic.4!c
DrWeb Trojan.Packed2.42621
Invincea ML/PE-A
McAfee-GW-Edition Artemis!Trojan
Microsoft Trojan:Win32/Woreflint.A!cl
SUPERAntiSpyware Trojan.Agent/Gen-Injector
ZoneAlarm UDS:DangerousObject.Multi.Generic
Cynet Malicious (score: 100)
BitDefenderTheta Gen:NN.ZemsilF.34298.2m0@autOF0j
Malwarebytes Ransom.HiddenTear
ESET-NOD32 a variant of MSIL/Kryptik.YDO
SentinelOne DFI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Kryptik.YDO!tr
Cybereason malicious.cd8528
Qihoo-360 Win32/Trojan.fc8

How to remove MSIL/Kryptik.YDO 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.YDO 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:

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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/Kryptik.YDO 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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