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

What is VirTool:MSIL/Vigorf.A infection?

In this article you will certainly discover regarding the interpretation of VirTool:MSIL/Vigorf.A as well as its negative effect on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet scams to require paying the ransom money by a victim.

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Most of the instances, VirTool:MSIL/Vigorf.A ransomware will instruct its targets to launch funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually introduced to the target’s tool.

VirTool:MSIL/Vigorf.A Summary

These alterations can be as adheres to:

  • 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 found on the victim’s disk drive — so the sufferer 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.


One of the most common networks whereby VirTool:MSIL/Vigorf.A Trojans are infused are:

  • By ways of phishing emails;
  • As an effect of individual ending up on a source that hosts a harmful software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the victim’s computer or protect against the device from working in a proper way – while likewise positioning a ransom money note that discusses the need for the targets to impact the settlement for the function of decrypting the records or bring back the data system back to the first problem. In many instances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has currently been damaged.

VirTool:MSIL/Vigorf.A distribution channels.

In different corners of the world, VirTool:MSIL/Vigorf.A expands by leaps as well as bounds. However, the ransom notes as well as techniques of obtaining the ransom money amount may differ relying on specific regional (regional) settings. The ransom money notes as well as methods of obtaining the ransom quantity may differ depending on certain regional (regional) setups.

Ransomware injection

For example:

    Faulty signals concerning unlicensed software program.

    In certain areas, the Trojans usually wrongfully report having actually found some unlicensed applications enabled on the sufferer’s device. The alert then demands the user to pay the ransom.

    Faulty statements about illegal web content.

    In nations where software program piracy is much less popular, this technique is not as efficient for the cyber frauds. Additionally, the VirTool:MSIL/Vigorf.A popup alert may falsely declare to be stemming from a law enforcement organization and also will report having situated child porn or various other unlawful data on the gadget.

    VirTool:MSIL/Vigorf.A popup alert might incorrectly declare to be deriving from a regulation enforcement organization and also will certainly report having situated youngster pornography or various other unlawful information on the gadget. The alert will similarly have a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: B5E54B86
md5: 630878e3ceeefddee062574b569e0f94
name: 630878E3CEEEFDDEE062574B569E0F94.mlw
sha1: 120559d8ebeadeea268206cf7785b182b00ac542
sha256: a2ec134c9be24e80c7fe27df4a4ba24283e104e2b8828ee4f6c0de214185551b
sha512: 4179f5d3b744fcaf848f373be598775ccc81400dfe27cfb5c88ad4b205d40bcde193e934260de5af472cbb182def45da2b64ca8fff2c1fe408e2b5b607b32b68
ssdeep: 1536:0//e1r7KMcVNbkmFG4B5qjaoxhJFmz4M3hqZfvYN:0+AVNbnG4B5Gz7banxqZHy
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 Hewlett-Packard 2012
Assembly Version:
InternalName: iwindows.exe
CompanyName: Hewlett-Packard
Comments: RPX 1.3.4400.61
ProductName: iwindows
FileDescription: iwindows
OriginalFilename: iwindows.exe

VirTool:MSIL/Vigorf.A also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004caece1 )
DrWeb Trojan.Hooker.21489
Cynet Malicious (score: 99)
ALYac Gen:Variant.Ursu.678867
Cylance Unsafe
Zillya Trojan.Remtasu.Win32.5571
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba VirTool:MSIL/Injector.cca7d954
K7GW Trojan ( 004caece1 )
Cybereason malicious.3ceeef
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Remtasu.AC
APEX Malicious
Avast MSIL:GenMalicious-HD [Trj]
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Variant.Ursu.678867
NANO-Antivirus Trojan.Win32.Jorik.dnaqwg
MicroWorld-eScan Gen:Variant.Ursu.678867
Tencent Win32.Trojan.Generic.Wkvo
Ad-Aware Gen:Variant.Ursu.678867
Sophos Generic ML PUA (PUA)
Comodo Malware@#8vxvd2q0u88g
BitDefenderTheta Gen:NN.ZemsilF.34692.em0@auqmJYe
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Variant.Ursu.678867 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Generic.fsdle
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1127564
eGambit Unsafe.AI_Score_60%
Antiy-AVL Trojan/Generic.ASMalwS.5C64E
Kingsoft Win32.Troj.Jorik.c.(kcloud)
Microsoft VirTool:MSIL/Vigorf.A
AegisLab Trojan.Win32.Generic.lZvA
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Ursu.678867
McAfee Artemis!630878E3CEEE
MAX malware (ai score=100)
VBA32 TScope.Trojan.MSIL
Panda Generic Malware
Rising Trojan.Generic!8.C3 (CLOUD)
Ikarus Trojan-Ransom.Blocker
Fortinet MSIL/Generic.AP.CFB48DC!tr
AVG MSIL:GenMalicious-HD [Trj]

How to remove VirTool:MSIL/Vigorf.A virus?

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 VirTool:MSIL/Vigorf.A 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:MSIL/Vigorf.A you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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