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

What is infection?

In this post you will locate about the interpretation of and its adverse influence on your computer system. Such ransomware are a kind of malware that is clarified by on the internet scams to demand paying the ransom by a target.

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Most of the instances, virus will advise its sufferers to launch funds move for the purpose of reducing the effects of the modifications that the Trojan infection has introduced to the sufferer’s gadget. 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);
  • 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.
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • 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
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the victim’s hard disk drive — so the sufferer can no more make use of the data;
  • Preventing routine accessibility 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.

The most normal networks where Trojans are injected are:

  • By methods of phishing emails;
  • As an effect of individual ending up on a resource that holds a destructive software;

As quickly as the Trojan is effectively injected, it will either cipher the data on the victim’s computer or avoid the device from functioning in an appropriate manner – while also putting a ransom money note that discusses the requirement for the targets to impact the repayment for the objective of decrypting the documents or recovering the data system back to the preliminary problem. In most circumstances, the ransom money note will turn up when the customer restarts the COMPUTER after the system has currently been harmed. distribution channels.

In numerous edges of the globe, grows by jumps and also bounds. Nevertheless, the ransom notes and methods of obtaining the ransom money quantity might differ depending on certain local (local) setups. The ransom money notes and techniques of obtaining the ransom quantity may differ depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software.

    In certain areas, the Trojans commonly wrongfully report having identified some unlicensed applications made it possible for on the target’s device. The sharp after that requires the customer to pay the ransom.

    Faulty statements regarding illegal web content.

    In nations where software piracy is less prominent, this method is not as reliable for the cyber frauds. Conversely, the popup alert may incorrectly declare to be stemming from a police institution and will certainly report having located kid porn or other prohibited data on the gadget. popup alert might wrongly assert to be obtaining from a regulation enforcement establishment and will report having situated youngster pornography or various other illegal data on the device. The alert will similarly include a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 6D0CCA39
md5: 38a9c3c756358509e68946803b41f3a8
name: 38A9C3C756358509E68946803B41F3A8.mlw
sha1: e93a37a63e32bea5b05df63a48c9f8178e6d91db
sha256: d5a1c143b07475b367d2e12ff72fe5a3ec59c42fa11ae2d3eb2d4e76442e60b3
sha512: 3e2714e85ddee354282d4ee344213c453b05118a9b399bab49604dcff8a192345dd2db2c6c0f0e1d1ea25e5f5ecab9b04ef6d86300d2208187d98ffbc031d67c
ssdeep: 3072:LcRm/ij4dNsj0ao1YHGweVSXqIhGLpVPhsPheXGMRIz39Bvt:LVKj4HFYwSXwjPyBz3fvt
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 00503ecc1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.10474
Cynet Malicious (score: 100)
CAT-QuickHeal Trojanransom.Spora
ALYac Trojan.Ransom.Spora
Cylance Unsafe
Zillya Trojan.Spora.Win32.22
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Spora.9237e701
K7GW Trojan ( 00503ecc1 )
Cybereason malicious.756358
Cyren W32/Trojan.JGVP-6804
ESET-NOD32 Win32/Filecoder.Spora.A
Zoner Trojan.Win32.52651
APEX Malicious
Avast Win32:Dropper-gen [Drp]
ClamAV Win.Ransomware.Spora-5942417-0
BitDefender Trojan.GenericKD.4280574
NANO-Antivirus Trojan.Win32.Filecoder.fadhcd
ViRobot Trojan.Win32.Z.Injector.110712
SUPERAntiSpyware Ransom.Spora/Variant
MicroWorld-eScan Trojan.GenericKD.4280574
Tencent Malware.Win32.Gencirc.11492876
Ad-Aware Trojan.GenericKD.4280574
Sophos ML/PE-A + Troj/Ransom-EEC
Comodo Malware@#3l5fwvgom89sa
BitDefenderTheta Gen:NN.ZexaF.34628.gqX@a05JoIi
VIPRE Trojan.Win32.Injector.cdgy (v)
TrendMicro Ransom_SPORA.J
Emsisoft Trojan.GenericKD.4280574 (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanSpy.Zbot.fipy
Webroot Ransomware.Locky.Gen
Avira TR/Crypt.XPACK.ymddc
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Spora.A
AegisLab Trojan.Win32.Spora.toa0
GData Win32.Trojan.Agent.OJ27G9
TACHYON Trojan-Spy/W32.ZBot.110712
AhnLab-V3 Trojan/Win32.Spora.R194498
McAfee Ransom-Spora.b
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Spora
Malwarebytes Ransom.Spora
Panda Trj/WLT.C
TrendMicro-HouseCall Ransom_SPORA.J
Rising Ransom.Spora!8.E3EE (C64:YzY0OomBq8r30Xeu)
Yandex Trojan.GenAsa!AMG+7TjUI/M
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Injector.DKMW!tr
AVG Win32:Dropper-gen [Drp]
Qihoo-360 Win32/Ransom.Spora.HwcBKhsA

How to remove 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 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

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If the guide doesn’t help you to remove 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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