MSIL/Kryptik.XWJ

Written by Robert Bailey

What is MSIL/Kryptik.XWJ infection?

In this article you will locate concerning the interpretation of MSIL/Kryptik.XWJ and its unfavorable effect on your computer system. Such ransomware are a type of malware that is specified by on the internet scams to require paying the ransom by a target.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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Most of the instances, MSIL/Kryptik.XWJ ransomware will instruct its victims to launch funds move for the purpose of neutralizing the modifications that the Trojan infection has introduced to the victim’s gadget.

MSIL/Kryptik.XWJ Summary

These adjustments can be as follows:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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;
  • 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;
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • 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.
  • 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.
  • Unusual version info supplied for binary;
  • Ciphering the records located on the sufferer’s disk drive — so the sufferer can no longer utilize the data;
  • Preventing regular access to the sufferer’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.xyz W32/Ransom.AY.gen!Eldorado
a.tomx.xyz W32/Ransom.AY.gen!Eldorado
office1.servemp3.com W32/Ransom.AY.gen!Eldorado

MSIL/Kryptik.XWJ

One of the most typical channels where MSIL/Kryptik.XWJ Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a source that organizes a harmful software program;

As quickly as the Trojan is effectively injected, it will either cipher the information on the victim’s computer or protect against the gadget from operating in a proper fashion – while likewise placing a ransom note that states the demand for the sufferers to impact the payment for the function of decrypting the files or restoring the data system back to the preliminary condition. In most instances, the ransom note will certainly turn up when the customer restarts the COMPUTER after the system has currently been damaged.

MSIL/Kryptik.XWJ distribution channels.

In numerous corners of the globe, MSIL/Kryptik.XWJ expands by leaps as well as bounds. However, the ransom money notes and tricks of obtaining the ransom money amount may differ relying on certain local (regional) setups. The ransom notes and also tricks of extorting the ransom money amount might vary depending on specific neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty informs about unlicensed software program.

    In specific locations, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the sufferer’s tool. The alert after that requires the customer to pay the ransom money.

    Faulty declarations regarding unlawful web content.

    In countries where software application piracy is less popular, this method is not as reliable for the cyber fraudulences. Conversely, the MSIL/Kryptik.XWJ popup alert might wrongly claim to be deriving from a police establishment and also will certainly report having located youngster pornography or other illegal information on the tool.

    MSIL/Kryptik.XWJ popup alert might incorrectly declare to be obtaining from a law enforcement establishment and also will report having located kid porn or various other illegal data on the tool. The alert will in a similar way include a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 6AE32683
md5: 78713ca1312219eb0240e17173778589
name: upload_file
sha1: a6a7b236a7521b83be888c960a6675b960f16370
sha256: 96f1a497b33dcd1bc2a12964c525fb04e52bda16d14a4267c005bf2880affb79
sha512: ba6a22ca72d15290b9593c95a441662420f8ae4466513eed96ed86ca25770f2be4bacf8ae870e189ee212ed62b6a57bf223d30102d2bb88a826db5d6d9fb48ba
ssdeep: 12288:I7/eEdaP4SLIny6/4tRRoMGdvd41CQj2RHGXo36ori/NvspNnb3s:Iwcy6/4DQdvdao3P0vsppI
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: xa92016 Microsoft
Assembly Version: 1.0.4.0
InternalName: RVgk.exe
FileVersion: 1.0.4.0
CompanyName:
LegalTrademarks:
Comments:
ProductName: MicroTrend Star
ProductVersion: 1.0.4.0
FileDescription: MicroTrend Star
OriginalFilename: RVgk.exe

MSIL/Kryptik.XWJ also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
McAfee Artemis!78713CA13122
AegisLab Trojan.Win32.Malicious.4!c
Cybereason malicious.6a7521
Cyren W32/Ransom.AY.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.XWJ
APEX Malicious
Kaspersky UDS:DangerousObject.Multi.Generic
DrWeb Trojan.PackedNET.437
McAfee-GW-Edition BehavesLike.Win32.Generic.hc
FireEye Generic.mg.78713ca1312219eb
SentinelOne DFI – Malicious PE
Microsoft Trojan:Win32/Wacatac.C!ml
ZoneAlarm UDS:DangerousObject.Multi.Generic
eGambit Unsafe.AI_Score_99%
Fortinet MSIL/GenKryptik.ESXJ!tr
BitDefenderTheta Gen:NN.ZemsilF.34254.Fm0@aCi6Gsl
AVG FileRepMalware
Paloalto generic.ml
CrowdStrike win/malicious_confidence_80% (W)
Qihoo-360 Generic/HEUR/QVM03.0.22F7.Malware.Gen

How to remove MSIL/Kryptik.XWJ 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

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.XWJ 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.XWJ 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/products/

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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