VirTool:Win32/Obfuscator.CY

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

What is VirTool:Win32/Obfuscator.CY infection?

In this article you will certainly locate concerning the interpretation of VirTool:Win32/Obfuscator.CY and its negative effect on your computer system. Such ransomware are a kind of malware that is specified by online fraudulences to demand paying the ransom by a sufferer.

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Most of the instances, VirTool:Win32/Obfuscator.CY infection will advise its sufferers to launch funds move for the function of neutralizing the modifications that the Trojan infection has presented to the victim’s device.

VirTool:Win32/Obfuscator.CY Summary

These adjustments 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.

  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • 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 files found on the target’s hard drive — so the victim can no longer use the data;
  • Preventing routine access to the sufferer’s workstation;

VirTool:Win32/Obfuscator.CY

One of the most common networks through which VirTool:Win32/Obfuscator.CY Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As a consequence of individual winding up on a resource that organizes a harmful software;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s PC or protect against the gadget from operating in a proper manner – while likewise putting a ransom note that states the requirement for the victims to effect the repayment for the purpose of decrypting the records or restoring the documents system back to the initial condition. In the majority of instances, the ransom money note will certainly show up when the client restarts the PC after the system has actually currently been harmed.

VirTool:Win32/Obfuscator.CY distribution channels.

In numerous edges of the globe, VirTool:Win32/Obfuscator.CY expands by leaps as well as bounds. Nonetheless, the ransom notes and techniques of obtaining the ransom money quantity may vary relying on specific local (local) setups. The ransom money notes and tricks of extorting the ransom money quantity may vary depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software.

    In specific areas, the Trojans frequently wrongfully report having actually spotted some unlicensed applications enabled on the target’s gadget. The alert then demands the user to pay the ransom.

    Faulty declarations concerning prohibited content.

    In nations where software application piracy is less preferred, this technique is not as reliable for the cyber scams. Conversely, the VirTool:Win32/Obfuscator.CY popup alert might falsely declare to be originating from a police organization as well as will report having located youngster pornography or other illegal data on the tool.

    VirTool:Win32/Obfuscator.CY popup alert may falsely assert to be acquiring from a legislation enforcement institution as well as will certainly report having situated youngster porn or various other unlawful data on the device. The alert will in a similar way include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 0C56BBB7
md5: a44f3d0c6e3d6f62a28121ff7c25d5cb
name: A44F3D0C6E3D6F62A28121FF7C25D5CB.mlw
sha1: 39a9c5cc9a29e533f2e09bb422a2c090294a58f9
sha256: 10c1cd8a09a94c1278905721f40811e5e090b85bc357284e421a6ad0d754dd8a
sha512: f9e25acbb879e375033952a5300b8bd1ec9ba753765ebe1948faea8f9d37c220d4d254cf37bd7a2bba4eca3b87e0974560334e4a4407475d50735645f3d8aec6
ssdeep: 3072:hlCeYUjQqjtKh8h7SoTyuoEi8HUYkSq2jpyq/hXj1+7KxapWnmWxZ0SyzJBz:jCteQvyoEi2FkSRwq/B1QpgUSy1Bz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x91cdx5e86x5b89x4e91x7f51x7edcx79d1x6280x6709x9650x516cx53f8x7248x6743x6240x6709 (C) 2017
FileVersion: 3.1.3.1
CompanyName: x91cdx5e86x5b89x4e91x7f51x7edcx79d1x6280x6709x9650x516cx53f8
LegalTrademarks: x91cdx5e86x5b89x4e91x7f51x7edcx79d1x6280x6709x9650x516cx53f8
Comments: x5b89x4e91x52a0x901fx5668
ProductName: x5b89x4e91x52a0x901fx5668
ProductVersion: 3.1.3.1
FileDescription: x5b89x4e91x52a0x901fx5668
Translation: 0x0804 0x03a8

VirTool:Win32/Obfuscator.CY also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
Cynet Malicious (score: 99)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Cybereason malicious.c9a29e
Symantec ML.Attribute.HighConfidence
Zoner Probably Heur.ExeHeaderH
APEX Malicious
Avast Win32:Evo-gen [Susp]
Kaspersky HEUR:Trojan.Win32.Generic
Sophos ML/PE-A
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Ransomware.cc
FireEye Generic.mg.a44f3d0c6e3d6f62
SentinelOne Static AI – Suspicious PE
Avira TR/Crypt.XPACK.Gen
eGambit Unsafe.AI_Score_97%
Antiy-AVL Trojan/Generic.ASMalwS.24596DE
Microsoft VirTool:Win32/Obfuscator.CY
AegisLab Trojan.Win32.Generic.4!c
AhnLab-V3 Malware/Win32.RL_Generic.R281376
Acronis suspicious
McAfee Artemis!A44F3D0C6E3D
VBA32 BScope.Trojan.Click
Panda Trj/CI.A
Rising [email protected] (RDML:nsBYndYVGWLy489/dTqOlA)
Yandex Trojan.GenAsa!i2MorvzCwxs
Ikarus Trojan.Win32.Tiggre
MaxSecure Trojan.Malware.300983.susgen
AVG Win32:Evo-gen [Susp]
Paloalto generic.ml

How to remove VirTool:Win32/Obfuscator.CY 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 VirTool:Win32/Obfuscator.CY 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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If the guide doesn’t help you to remove VirTool:Win32/Obfuscator.CY 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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