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

What is AIT:Trojan.Nymeria.3635 infection?

In this article you will certainly find concerning the interpretation of AIT:Trojan.Nymeria.3635 as well as its unfavorable influence on your computer system. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom money by a target.

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In the majority of the situations, AIT:Trojan.Nymeria.3635 virus will instruct its sufferers to launch funds move for the objective of counteracting the changes that the Trojan infection has actually introduced to the sufferer’s gadget.

AIT:Trojan.Nymeria.3635 Summary

These adjustments can be as adheres to:

  • Installs a browser addon or extension;
  • Attempts to modify Internet Explorer’s start page;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • 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
  • Installs a native executable to run on early Windows boot;
  • 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.
  • 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.
  • Attempts to modify browser security settings;
  • Operates on local firewall’s policies and settings;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to disable Windows Auto Updates;
  • Attempts to modify or disable Security Center warnings;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify user notification settings;
  • Ciphering the files located on the target’s hard disk drive — so the victim can no longer utilize the data;
  • Preventing normal 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.
Similar behavior
Related domains Trojan-Ransom.Win32.Blocker.mofx Trojan-Ransom.Win32.Blocker.mofx


One of the most common networks whereby AIT:Trojan.Nymeria.3635 Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As a consequence of user ending up on a resource that organizes a destructive software;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the target’s PC or prevent the gadget from working in a proper manner – while also positioning a ransom money note that mentions the demand for the sufferers to impact the repayment for the function of decrypting the papers or recovering the file system back to the preliminary problem. In most circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has already been harmed.

AIT:Trojan.Nymeria.3635 distribution channels.

In different corners of the world, AIT:Trojan.Nymeria.3635 grows by jumps and bounds. Nevertheless, the ransom money notes and also methods of obtaining the ransom money quantity may vary depending upon certain local (regional) setups. The ransom money notes and also techniques of extorting the ransom quantity might differ depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software program.

    In certain areas, the Trojans frequently wrongfully report having actually found some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then requires the individual to pay the ransom money.

    Faulty declarations concerning prohibited content.

    In nations where software piracy is less popular, this technique is not as effective for the cyber fraudulences. Alternatively, the AIT:Trojan.Nymeria.3635 popup alert may wrongly declare to be deriving from a police organization as well as will certainly report having located kid porn or various other illegal data on the gadget.

    AIT:Trojan.Nymeria.3635 popup alert may incorrectly declare to be acquiring from a regulation enforcement establishment and also will report having situated kid porn or other illegal data on the gadget. The alert will likewise contain a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 98D6F529
md5: b1fb98fd0dbedfe12cba571cd78650ab
name: B1FB98FD0DBEDFE12CBA571CD78650AB.mlw
sha1: 4e39415aa5ef0aaacd79d685957415d0a46d5d2f
sha256: 73e06c1487538bdad11290877922da2e7a1ef6eb1f493b0f1f14b3aa5fde52c5
sha512: 76aa905cc7efc43af53c7f92b459773deea96c4a77b4af72b6fa45a0ee1de8115fada41a0d02913fb3878547f8dbef8af12e7850df3355c936d43dfab4ff6990
ssdeep: 12288:Z4lsXvtCcmVVXzzn4PJAahPl/QEdIMiVbHydEIJnJWUgaQwgq9MmCS:Z4lavt0LkLL9IMixoEgeaQRq9MmCS
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x7248x6743x6240x6709@2020
FileDescription: CMDx547dx4ee4x884cx7a0bx5e8f
Translation: 0x0804 0x04b0

AIT:Trojan.Nymeria.3635 also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan AIT:Trojan.Nymeria.3635
FireEye AIT:Trojan.Nymeria.3635
McAfee Artemis!B1FB98FD0DBE
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
BitDefender AIT:Trojan.Nymeria.3635
CrowdStrike win/malicious_confidence_60% (W)
Avast Win32:Trojan-gen
Kaspersky Trojan-Ransom.Win32.Blocker.mofx
Alibaba Ransom:Win32/Blocker.4448951b
Ad-Aware AIT:Trojan.Nymeria.3635
Sophos Mal/Generic-S
Emsisoft AIT:Trojan.Nymeria.3635 (B)
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
Arcabit AIT:Trojan.Nymeria.DE33
ZoneAlarm Trojan-Ransom.Win32.Blocker.mofx
GData AIT:Trojan.Nymeria.3635 (2x)
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.Generic.C4130727
ALYac AIT:Trojan.Nymeria.3635
MAX malware (ai score=85)
APEX Malicious
ESET-NOD32 multiple detections
Tencent Win32.Trojan.Bp-startpage.Nlob
eGambit Unsafe.AI_Score_78%
Fortinet W32/Blocker.MOFX!tr
AVG Win32:Trojan-gen
Cybereason malicious.d0dbed

How to remove AIT:Trojan.Nymeria.3635 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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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 AIT:Trojan.Nymeria.3635 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 AIT:Trojan.Nymeria.3635 you can always ask me in the comments for getting help.

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  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site:
  3. More information about GridinSoft products:

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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