MSIL/Kryptik.ZVW

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

What is MSIL/Kryptik.ZVW infection?

In this article you will certainly discover regarding the meaning of MSIL/Kryptik.ZVW and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom by a victim.

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In the majority of the cases, MSIL/Kryptik.ZVW virus will instruct its sufferers to start funds move for the objective of counteracting the amendments that the Trojan infection has actually presented to the sufferer’s gadget.

MSIL/Kryptik.ZVW Summary

These modifications 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Detected script timer window indicative of sleep style evasion;
  • 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.
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Executed a process and injected code into it, probably while unpacking;
  • 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.
  • Ciphering the files located on the target’s hard disk — so the target can no longer make use of the information;
  • Preventing routine access to the sufferer’s workstation;

MSIL/Kryptik.ZVW

One of the most typical channels through which MSIL/Kryptik.ZVW Trojans are injected 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 an effect of user ending up on a resource that holds a malicious software program;

As quickly as the Trojan is successfully injected, it will either cipher the information on the victim’s PC or prevent the device from working in a proper manner – while likewise putting a ransom note that points out the demand for the sufferers to impact the payment for the function of decrypting the papers or restoring the documents system back to the initial condition. In a lot of instances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has already been harmed.

MSIL/Kryptik.ZVW circulation networks.

In numerous corners of the world, MSIL/Kryptik.ZVW expands by jumps and bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom money quantity may differ depending upon specific local (local) setups. The ransom notes and also techniques of obtaining the ransom money amount might differ depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In particular locations, the Trojans typically wrongfully report having actually found some unlicensed applications enabled on the sufferer’s device. The alert after that requires the customer to pay the ransom.

    Faulty declarations regarding prohibited web content.

    In nations where software piracy is much less prominent, this technique is not as efficient for the cyber frauds. Additionally, the MSIL/Kryptik.ZVW popup alert might wrongly assert to be stemming from a police institution and also will certainly report having located youngster pornography or various other prohibited information on the device.

    MSIL/Kryptik.ZVW popup alert might falsely claim to be deriving from a regulation enforcement institution and also will report having located kid pornography or other unlawful data on the tool. The alert will likewise consist of a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 872BA478
md5: 4c2606071adbbdee1e14a9da3f59d120
name: 4C2606071ADBBDEE1E14A9DA3F59D120.mlw
sha1: a288248805d24fbb17d1f5ee2d8cfdd7fe94bef4
sha256: d18f8f6d838c1698b649b2ac461d45148fe5827c5dc3464d19b8059fd8c45d4a
sha512: 39afd01e4ec9d69da55beac4f4531a807f5bf618a595a3884cdde0bb874a8d39cff3bf5259f4ba051c4ae9bc71490297f2551e0b359d8ce7478336bd8eba9363
ssdeep: 3072:hLW7ww3v5lNhCWgElqO0d+8TN8f/xupyQTNbIMniFvzXWE5nCSEhakbcrWomFs:hG5XhpflOd+KNm/EN6rXNnrE8kb2mF
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

MSIL/Kryptik.ZVW also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e3981 )
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
ALYac Gen:Variant.Ursu.921133
Cylance Unsafe
Zillya Trojan.Blocker.Win32.36006
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Blocker.3080bd25
K7GW Trojan ( 0055e3981 )
Cybereason malicious.71adbb
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.ZVW
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.jjjf
BitDefender Gen:Variant.Ursu.921133
NANO-Antivirus Trojan.Win32.Kryptik.eevldp
MicroWorld-eScan Gen:Variant.Ursu.921133
Tencent Win32.Trojan.Blocker.Pdco
Ad-Aware Gen:Variant.Ursu.921133
Sophos Mal/Generic-S
Comodo Malware@#7c25foi0m97u
BitDefenderTheta Gen:NN.ZemsilF.34670.nm0@aidx31f
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Trojan.dc
FireEye Generic.mg.4c2606071adbbdee
Emsisoft Gen:Variant.Ursu.921133 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Malware.Gen
Avira TR/Dropper.MSIL.Gen
eGambit Unsafe.AI_Score_94%
Microsoft Trojan:Win32/Dynamer!ac
Arcabit Trojan.Ursu.DE0E2D
AegisLab Trojan.Win32.Blocker.j!c
GData Gen:Variant.Ursu.921133
AhnLab-V3 Win-Trojan/FCN.140610.X1385
McAfee Artemis!4C2606071ADB
MAX malware (ai score=100)
VBA32 Trojan-Ransom.Blocker
Panda Trj/GdSda.A
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!QgXVB23oBZs
Ikarus Trojan.Win32.Fsysna
Fortinet MSIL/Generic.AP.AE1B177!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Dynamer.HgIASOMA

How to remove MSIL/Kryptik.ZVW ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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.ZVW 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.ZVW 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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